[an error occurred while processing this directive]
排灌机械工程学报
   Home  About Journal  Editorial Board  Instructions for Authors    中文 
 
 

Office Online

 
   Author Center
   Peer Review
   Editor Work
   Office Work
   Editor-in-chief
 

Journal Online

 
   Forthcoming Articles
   Current Issue
   Next Issue
   Archive
   Read Articles
   Download Articles
   Email Alert
   
Quick Search  
  Advanced Search
Journal of Drainage and Irrigation Machinery Engin
 
2013 Vol.31 Issue.3
Published 2013-03-25

article
Article
185 Numerical investigation of cavitating flows in bulb tubular pump and its performance prediction
TANG Xue-Lin, HUANG Wei, WANG Fu-Jun, WU Yu-Lin, LIU Zhu-Qing
Under the design operating condition, the RNG k-ε turbulence model and the full cavitation model were employed to investigate cavitating flows in a bulb tubular pump model with lowhead and predict its cavitation performance curve by using Fluent. The cavitating flow patterns in the pump under six operating conditions, where the cavitation inception, 3% head drop point and severe cavitation condition were included, were compared and analyzed. The static pressure and vapor volume fraction contours on the suction side of blade of the impeller and the fraction distributions in various planes located at different axial positions were obtained under different available NPSH. It was showed that a cavity occurs in the suction side of blade immediately behind the blade leading edge initially at a constant flow rate, and then it expands along the suction side with lowered available NPSH; such a cavity expansion affects the pump performance eventually. The onethird net crosssectional area of flow passages at the Z=-20 mm axial location has been occupied by the vapor with more than 10% volume fraction at the 0.81 m available NPSH, causing a serious blockage effect in the impeller passages. All the predicted results might be helpful in hydraulic and structural optimization for the bulb tubular pump in future.
2013 Vol. 31 (3): 185-189 [Abstract] ( 1730 ) [HTML 1KB] [ PDF 2612KB] ( 1532 )
190 Influence of sampling frequency and time on pressure fluctuation characteristics of axial flow pump
SHI Wei-Dong, YAO Jie, ZHANG De-Sheng, ZHANG Hua, WU Su-Qing
In order to precisely analyze the pressure fluctuation in axialflow pumps, the unsteady flow in such a pump was calculated based on the timeaveraged N-S equations, the standard k-ε turbulence model and SIMPLEC algorithm with a structured mesh under a specific tip gap, then the pressure signals monitored were sampled with different sampling frequencies and times to show their effects on the pressure fluctuation characteristic. The results show that the point at f=0 stands for the average static pressure physically if the pressure was used as the Yaxis of FFT in a frequent domain diagram. Besides, the sampling frequency and time exhibit a significant effect on the pressure fluctuation feature and a too small sampling frequency is responsible for the aliasing phenomenon in time and frequencydomain. It was derived that a spectral leakage at the basic frequency doesn′t occur when the sampling frequency is an integer multiple of the product of the time for impeller rotating one revolution and the number of blades. Furthermore, a general equation for determining sampling time was established for the pressure fluctuation signals obtained in an axialflow pump by numerical computation. According to that equation, sampling time is dependent on pump rotational speed. Obviously, such a finding forms the base for processing of pressure fluctuation signal obtained in CFD simulations in an axialflow pump.
2013 Vol. 31 (3): 190-194 [Abstract] ( 2550 ) [HTML 1KB] [ PDF 1706KB] ( 2175 )
195 Numerical prediction on overall performance of double suction pump reverse running as turbine
CHEN Tie-Jun, GUO Peng-Cheng, LUO Yi, WU Yu-Lin
To study the behavior of a double suction pump with guide vanes when running as a turbine, the performance of the pump was predicted by using the SST k-ω turbulence model; meanwhile, the performance in turbine mode was investigated as well, especially in the braking pump mode and reverse rotation pump mode. It was shown that the pump efficiency at the rated point is 89.3% and the peak efficiency in turbine is as high as 90.5%; moreover, when the head is more than 200 m, the turbine can keep a higher efficiency over a wider flow rate range. The head curve in pump mode doesn′t show a positive slope at all; in turbine mode, however, the curve exhibits a "S" shape zone, suggesting a turbine shouldn′t be operated in that zone. The flow patterns in the runner are smooth and there is no reverse or separation phenomenon in the pump and turbine modes at the duty points. The passage between the runner and the double suction pipe is so narrow that the flow swirls strongly there. When the pump is operated in reverse rotation and braking pump modes, the reverse flow in the runner leads to stall phenomena. It is necessary to consider that cavitation may occur in turbine mode, for operation safety occurrence of cavitation should be avoided.
2013 Vol. 31 (3): 195-199 [Abstract] ( 1875 ) [HTML 1KB] [ PDF 1859KB] ( 1941 )
200 Design of singlechamber gas piezoelectric pump
SUN Xiao-Feng, YANG Zhi-Gang, HE Ye-Rong, SHAO Ze-Bo
In order to fabricate gas piezoelectric pumps with better performance, a new type of umbrellashaped rubber valve was designed. The discharge coefficient of that valve was analyzed, and the valve performance was simulated by applying Ansys software. Consequently, the natural frequencies from first to tenth order and the critical pressure difference across the valve under which it will be failure were determined. The results showed that the pump breaks down, i.e., its valve cannot close by itself properly due to a too large opening height, if the pressure difference across the valve is higher than the critical value 800 Pa, when working at a frequency lower than the firstorder natural frequency of the valve. Also, the thermal performance of the piezoelectric vibrator was measured when pumping air. It was showed that the temperature of the vibrator at thermal equilibrium is less than 70 ℃ when it was driven 110 V voltage at a less than 400 Hz frequency. A singlechamber gas piezoelectric pump with the newly designed umbrella rubber valve was tested by using air and water. It was showed that for air the optimum working frequency is 380 Hz, and the maximum output flowrate and pressure are 1 889 mL/min and 5.1 kPa; for liquid, however, the best working frequency is 240 Hz, and the maximum output flowrate and pressure are 300 mL/min and 25.0 kPa. These results confirm that the singlechamber gas piezoelectric pump has a better capability of pumping gas.
2013 Vol. 31 (3): 200-204 [Abstract] ( 2130 ) [HTML 1KB] [ PDF 2255KB] ( 1506 )
205 Numerical analysis of pressure fluctuation in low specific speed mixedflow pump
LI Yi-Bin, LI Ren-Nian, WANG Xiu-Yong, HAN Wei, GAO Qiang
In order to investigate effects of impellerguide vane interaction on pressure fluctuation in a low specific speed mixedflow pump, the threedimensional, unsteady turbulent flow in it was analyzed by using CFD code with the RNG k-ε turbulence model and sliding mesh technique under the design condition, and the pressure fluctuations at three monitoring points were obtained. Subsequently, the fluctuation signals were transformed into the frequencydomain to get their characteristics in terms of amplitude and frequency. Even though a positive slope head curve was observed under the 60% and 85% design flow rate conditions, the unsteady flow simulation based on the Reynoldsaveraged N-S equations failed to show this effect. It was shown that the maximum amplitude of pressure fluctuation is found at the tip of shroud of impeller, but the minimum one was located at the tip of the hub. The amplitudes of fluctuation at the entrance to impeller and at the monitoring points located at the tip in the gap between impeller and guide were as high as twice the magnitude of the amplitude observed at the tip of hub. Further, the pressure fluctuation exhibited increasing amplitude from the entrance of impeller to the outlet to guide vane, where the maximum amplitude with a low frequency was identified.
2013 Vol. 31 (3): 205-209 [Abstract] ( 1828 ) [HTML 1KB] [ PDF 1641KB] ( 1599 )
210 Characteristics and interaction of front and rear impellers of axial flow tandem pump
ZHAO Yu, WANG Guo-Yu, BAI Ze-Yu, YU Qi-Dong
The internal flow in an axial flow tandem pump at various flow rates was computed numerically using CFD code to predict the pump performance of the pump and analyze the interaction between tandem impellers. The FBM turbulence model, in which RANS and LES are blended, was adopted in the computation, and validated against the experimental data, suggesting the model not only is able to predict the performance more precisely but also has a better resolution than the standard k-ε turbulence model. It was demonstrated that the pump head decreases monotonously but the shaft power rises slightly with increasing flow rate, showing a good regulating characteristic. The front impeller has almost the same characteristics with conventional axial flow impellers; however, the front impeller performance at a low flow rate is clearly improved by the rear impeller. Comparing with conventional axial flow impellers, the rear impeller exhibits a stable head curve over a significantly wide range of flow rate because the flow pattern in its entrance has been improved by the front impeller.
2013 Vol. 31 (3): 210-214 [Abstract] ( 1852 ) [HTML 1KB] [ PDF 1838KB] ( 1692 )
215 Fatigue strength on stamped and welded impeller in multistage centrifugal pump
WANG Yang, WANG Wei-Jun, WANG Hong-Yu, YE Dao-Xing, LI Gui-Dong
In order to study the fatigue characteristics of an impeller under the pressure fluctuation in a flow field during its operation, the flow field in the first stage of the LVS 3-9 vertical multistage pump was simulated by software CFX on the multiphysics platformAnsys Workbench according to the similarity of flow and structure among various stages, then the characteristics of pressure fluctuation in the impeller and diffuser have been obtained. The fluid static pressure obtained by CFD was applied on the structural model of impeller, and the stress and deformation of the structure were analyzed under such a load based on the oneway coupling method for fluidstructure interaction (FSI) in Ansys. Considering the feature of pressure on bladed the fatigue limit of the welded impeller was estimated by best fitting the S-N curve of the impeller material obtained based on the least square method. Eventually, the fatigue strength of the impeller structure was assessed by means of the modified Goodman fatigue limit diagram. The results show that the stress in the impeller structure decreases steadily from the inlet to the outlet, the deformation, however, increases gradually and a peak one can be found at the impeller outlet. At the same radial position, the obvious stress concentration is located at the welding zones between the shroud and blades. The impeller structure exhibits a bending deformation, which is towards to the impeller eye, all in the axial direction. The fatigue strength of the impeller with two welding spots is lower than the fatigue limit at all the flow rates and the mean stress and stress fluctuating amplitude are the highest at the low flow rate.
2013 Vol. 31 (3): 215-219 [Abstract] ( 2380 ) [HTML 1KB] [ PDF 2084KB] ( 1959 )
220 Hydraulic design optimization of centrifugal pump with high head and large capacity by using CFD
GUO Jian-Ping, GAO Zhong-Xin, QIN Da-Qing, XING Hai-Xian
The impeller of hydraulic model HEC A934 was used as an initial impeller for the centrifugal pump to be developed, and its diameter was enlarged to an expected value while the outlet blade angle kept unchanged, then the impeller geometry is going to be optimized. The meridian flow channel shape, number of blades, blade section profile, inlet and outlet blade angle and so on were altered according to the lowest, design and highest head specified by the pump user, the performance of those impellers was estimated by means of CFD codeCFX-TASCFlow to examine if the expected headflow rate curve has been achieved; if not, the alteration will be continued until an impeller with best performance is obtained. Further, the flow in the pump with this optimized impeller was simulated by using Ansys CFX to check if the suction entry, guide vane and volute casing have matched the impeller. Finally, the corresponding model pump was measured on the high head test system II in HEC. It was confirmed that all the hydraulic parameters, namely, head, flow rate, efficiency, cavitation number etc have met the target values.
2013 Vol. 31 (3): 220-224 [Abstract] ( 2863 ) [HTML 1KB] [ PDF 2039KB] ( 2314 )
225 Numerical simulation and optimization of shaft tubular turbine runner with superlow head
YANG Chun-Xia, ZHENG Yuan, ZHENG Lu, LI Xiao-Xu, ZHOU Da-Qing, LI Ling-Yu
For a hydropower station in North Jiangsu province, a shaft tubular turbine with about 2 m super low head was developed to effectively make use of low head hydro resources. The threedimensional, steady, turbulent flow in the flow passage of the turbine was numerically simulated by using the Navier-Stokes equations and the SIMPLEC algorithm, and the influences of vane section profile, runner diameter and stagger angle on the turbine performance were analyzed. Eventually, an optimal runner was specified by comparing the performance of different design cases. The results showed that after optimization the turbine with 1.75 m diameter and 23° stagger angle not only has met the design requirements by the hydropower station but also exhibits the best efficiency and the highest output power. At the design point (head 2.1 m, flow rate 10 m3/s), the turbine efficiency is 87.6%. Based on the optimized turbine a model turbine GD-WS-35 was made and its performance was measured in laboratory. Under the design condition (flow rate 0.398 m3/s), the best efficiency of the model was 8334%. By applying the scaling law of hydroturbine, the peak efficiency of the prototype of this model will be  8514% at the flow rate of 9.96 m3/s. The CFD predicted peak efficiency is slightly higher than experimental one, suggesting the error is within ±3% range.
2013 Vol. 31 (3): 225-229 [Abstract] ( 2476 ) [HTML 1KB] [ PDF 1423KB] ( 1876 )
230 Nonlinear evaluating function for wicketgate closing rate optimization and multimode optimum method
FAN Hong-Gang, CUI He-Chen, CHEN Nai-Xiang
A nonlinear evaluating function dealing with wicketgate closing rate optimization was presented, and the multioperation point optimization method is proposed based on genetic algorithm. The wicketgate closing rate of a real hydropower station was optimized by utilizing the proposed function and optimization model and the results were compared with those optimized by means of the existing linear evaluating function. For the optimized closing rate by using the linear evaluation function, the maximum speed rise is 49.4%, which is near the control value (50%), and the safe margin is 0.6% only; but the safe margins of both the maximum pressure at the end of spiral casing and the minimum pressure at the inlet of draft tube are 4.717 and 2.812 m, which are relatively high. For the closing rate optimized with the proposed nonlinear evaluation function, however, although the safe margins of both the maximum pressure at the end of spiral casing and the minimum one at the inlet of draft tube drop to 2.501 and 1.765 m, the maximum speed rise is 46.1% and the safe margin rises to 3.9%. The simulated results show that the optimized wicketgate closing rate with the just proposed nonlinear evaluating function can keep safety margin in a proper range for every optimization objective. Multioperation point optimization method is proven to be accurate and the optimized closing rate is universal to different hydrotransient cases. Such a method plus the proposed nonlinear evaluating function can achieve a relatively equalized distribution of safety margin for every optimization objective in different cases.
2013 Vol. 31 (3): 230-235 [Abstract] ( 1871 ) [HTML 1KB] [ PDF 2021KB] ( 1725 )
236 Design and numerical simulation of novel spraying blade for gasliquid mixing
WANG Chao-Hui, Gao-Quan-Jie, Xu-Zhan-Min, Wang-Wei
A new type of gasliquid mixing electrostatic spraying blade was designed to eliminate the drawbacks in the existing antirust oil spraying machines with a single oil spray, for instance, high oil consumption, serious environmental pollution, poor adsorption and deposition of spraying oil and so on. The geometric parameters and mathematical model for the spraying blade were established, thus its key design parameters were determined based on the structure of existing electrostatic spraying blade. It was shown that there is a vortex flow in the mixing chamber of the new spraying blade, causing the oil and gas are mixed thoroughly. The gas velocity is distributed axisymmetrically with 4.310 m/s maximum and 0.287 m/s minimum velocity in the chamber. The droplet velocity at the outermost contour line is about 0.293 m/s. The droplet velocity is uniform at the outlet of the spraying blade and the droplets themselves are distributed divergently, leading to a relatively wide spraying range. After the second gasoil mixing, the droplet velocity is lowered gradually in the divergent gap between the blade outlet and the second mixing chamber; the expandable gas bubbles induce the oil droplets to be broken once more. When the spraying simulation times are 0.000 1 s and 0.002 6 s, the maximum droplet size at the outlet of spraying blade are 70.76 μm and 32.94 μm, respectively. Additionally, with increase of simulation time, the distribution of droplet size becomes stable, suggesting the gasliquid atomization effect and the quality of surface coating are improved greatly.
2013 Vol. 31 (3): 236-241 [Abstract] ( 1857 ) [HTML 1KB] [ PDF 1842KB] ( 1662 )
242 Characteristics of internal leakage in doubleacting doublestator slider motors and optimization
WEN De-Sheng, ZHANG Shao-Bo, WANG Yuan, CHANG Xue, KONG Wei-Tao
The internal leakage pathways in a doubleacting doublestator slider motor were analyzed according to its internal structure detailed in order to calculate its volumetric efficiency precisely and subsequently to determine reasonable clearances for the seals. It was identified that there are three kinds of internal leakages and ten leakage pathways in the motor. The total leakage model was obtained when the motor was in ordinary connection or in differential connection modes through the combination of leakage flow rate expression of every leakage pathway. The results show that the internal leakage flow rate in the motor is related not only to itself structure parameters, but also to the working pressure and the output speed; moreover, the flow rate is dependent of connection mode of ports. However, the total leakage flow rate follows a common rule. An analysis was applied into a particular motor to identify the main factor that restricts a doubleacting doublestator slider motor can be used in a high pressure situation. It was found that the axial leakage is the main factor because it is mostly substantial. Finally, effects of clearance on axial leakage flow rate were explored to tend to provide useful information for optimizing the structure of doubleacting doublestator slider motor.
2013 Vol. 31 (3): 242-247 [Abstract] ( 2021 ) [HTML 1KB] [ PDF 1870KB] ( 1768 )
248 Investigation into leakage characteristics of honeycomb seals for water
WANG Wen-Quan, ZHANG Li-Xiang, YAN Yan
A honeycomb seal installed between two parallel flat plates was used as an analytical model; the threedimensional flow in the seal was solved numerically according to the Navier-Stokes equations and Vreman subgrid stress model to investigate the leakage characteristics and sealing mechanism in honeycomb seals for water. The finite volume method was used to discretize the Navier-Stokes equations and the secondorder upwind scheme and the secondorder central scheme are applied to the convection and diffusion terms in the equations, respectively. The leakage flow rates through the honeycomb with different sizes of cells were obtained by means of numerical computation and compared with those in a corresponding labyrinth seal; eventually, the leakage characteristics and sealing mechanism were discussed. The results show that the honeycomb seal has better sealing performance than the labyrinth seal, a honeycomb with cells of 6 mm radius and 4 mm depth achieves the lowest leakage flow rate, causing the best sealing effect. Also, the leakage flow rate increases approximately linearly with increasing pressure difference across the inlet and outlet of the seal; however, the leakage flow rate remains nearly constant when the plate moving speed varies. Through further exploring the flow pattern in the honeycomb seal, it was observed that strong vortices have been generated in the honeycomb cell and consume the kinetic energy of stream. Such a flow pattern is mainly responsible for pressure drop and throttling effect in the seal.
2013 Vol. 31 (3): 248-252 [Abstract] ( 1882 ) [HTML 1KB] [ PDF 2143KB] ( 1648 )
253 Numerical simulation of flow in 3D parallel micro gap
CHEN Hui-Long, WANG Qiang, LIU Yu-Hui, LIU Tong, LIU Zhi-Bin
The dynamic pressure effect in upstream pumping mechanical seals was studied by using a flow in the 3D parallel micro gap to remove the pumping effect. Three kinds of geometrical and computational models, namely the groove with constant depth bottom, the groove with backward sloping bottom and the groove with forward sloping bottom, were established, respectively; the flow and opening force in those models were calculated by using numerical simulation method when one ring was in motion and one was stationary. The results indicate that there is a high pressure zone in the liquid film thickening zone, and a low pressure zone in the film thinning zone regardless of the bottom shape of a groove in the specified range of parameters. For the groove with constant depth, the opening force is independent on the seal ring moving speed, the groove depth and the gap of the seal when either the flat ring or the grooved ring is in motion before cavitation occurs in the liquid film. After cavitation, however, the opening force significantly increases with increasing translational speed and decreasing gap of the seals. At the same condition, the opening force generated by the moving grooved ring is larger than that by the moving flat one. In addition, deeper groove depth of moving flat ring can increase the opening force and diverging step in the gap will generate further larger result.
2013 Vol. 31 (3): 253-258 [Abstract] ( 1757 ) [HTML 1KB] [ PDF 1969KB] ( 1522 )
259 Method for optimal spatial and temporal allocation of water in irrigation districts
PENG Shi-Zhang, WANG Ying, CHEN Yun, GAO Xiao-Li, ZHANG He-Xi
The optimization of allocation of water in irrigation districts is very important for improving irrigation water management and alleviating the pressure of irrigation water availability as well as maintaining agricultural sustainability. Therefore, a new method was proposed to optimize allocation of water in irrigation districts by combining the traditional optimization method, in which the model for optimal allocation of water among different crops is used, and the optimization model with a multiobjective function for canal scheduling as well as GIS. In this method, the spatial difference in crop, soil, meteorological station and canal network pattern and the temporal difference in water required by corps in various growth stages. Compared with the traditional optimization method, in the new method the number of optimization variables can be chosen flexibly according to the accuracy of optimization by an irrigation district manager. As a result of this, not only the optimization of allocation of water in irrigation districts was simplified but its results can be displayed in various ways. The decision support system for optimization allocation of water established here has a friendly interface and high computational efficiency; further, it is transplantable and universal. The results of a case study have shown that the water productivity, crop yield and irrigation net benefit are increased by 0.5 kg/m3, 24.3%, 16.8%, respectively, while the irrigation water volume is reduced by 29.6% after optimization. Additionally, a tendency that the limited water resources are allocated to highvalue crops was shown in the optimized allocation of water. This approach provides a new way for spatial and temporal allocation of water in irrigation districts.
2013 Vol. 31 (3): 259-264 [Abstract] ( 2077 ) [HTML 1KB] [ PDF 1960KB] ( 1685 )
265 Experimental study on effect of online emitter on head loss in drip irrigation laterals
CHOU Zhen-Jie, ZHU De-Lan, ZHANG Lin
For hydraulic design of drip irrigation lateral to be improved, the minor head loss caused from online emitters in drip irrigation laterals was explored experimentally. Based on the experimental results, the minor head loss coefficient ξ and the ratio of the minor head loss over the frictional head loss, hj/hf, were correlated to Reynolds number and emitter spacing for different types of emitter. It was shown that hj/hf is considerably dependent on type of emitter and emitter spacing. At the same emitter spacing, hj/hf caused from online labyrinth channel emitters is greater than that from pressure compensating emitters; for the same type of emitters, however, hj/hf is inversely proportional to emitter spacing. Importantly, all the hj/hf values are larger than those specified in the Technical Standard of MicroIrrigation Project (SL-103-95). According to the standard, the minor head loss is about (0.1-0.2)% of the total frictional head loss; obviously the total head loss will be underestimated by this. Further, the minor head loss coefficient ξ are related to the type of emitter, Reynolds number and emitter spacing. For labyrinth channel emitters the coefficient is higher than 0.6; however, for compensating pressure emitters, it is ranged in 0.3-0.5. The coefficient increases with decreasing emitter spacing, and declines with increasing Reynolds number. An empirical formula for the coefficient was proposed by regression.
2013 Vol. 31 (3): 265-269 [Abstract] ( 2291 ) [HTML 1KB] [ PDF 1420KB] ( 2289 )
270 Estimation of soil moisture content of jujube orchard in loess plateau based on water stress coefficient from FAO-56
HU Yong-Xiang, LI Yuan-Nong, ZHANG Ying, JIANG Geng-Min
To quickly monitor the soil moisture content of dripirrigated jujubes in Loess Plateau, a new equation for estimating average soil moisture content in root zone has been deduced based on the fundamental concept of FAO-56 water stress coefficient and related formulas, the equation is applicable in different growth stages of jujube. In April-September 2009, the equation was used to estimate the soil moisture content in two important growth stages of jujube by allocating three different lowest limits of soil moisture content in Mizhi Experimental Station in loess Plateau, and the dynamic change in moisture content was simulated; additionally, the estimated and measured values were compared and the corresponding error analysis was conducted. The results indicated that the FAO-56 water stress coefficient formula has a high accuracy in the dynamic simulation of the soil moisture content, thus the error between the estimated and measured values is less. During flowering and fruit set stages the correlation coefficients are 0.828 0,0.907 3,0.935 1, the rootmeansquare errors are 0.055, 0.093, 0068 in different treatments (lowest limit of irrigation: 60%, 50%, 40% of field capacity). During fruit development stage the correlation coefficients are 0.777 2, 0.766 7, 0.905 5, and the rootmeansquare errors are 0.057, 0.092, 0.079 for those treatments. Moreover, the correlation coefficients are reduced with increasing soil moisture content, but rise with increasing water stress degree, suggesting for higher soil moisture contents the formula accuracy will get poor slightly. This formula is more suitable for the semiarid areas in Loess Plateau, and it may be useful for agricultural water management.
2013 Vol. 31 (3): 270-276 [Abstract] ( 2215 ) [HTML 1KB] [ PDF 1617KB] ( 1761 )
排灌机械工程学报
 

WeChat QR code

 

News

 
· Call for paper of The 14th Asian International Conference on Fluid Machinery(AICFM14)
· Call for paper of the 2nd International Symposium of Cavitation and Multiphase Flow (ISCM 2016)
· JDIME have be selected for the 2015-2016 China Science Citation Database (CSCD)
· CALL FOR PAPERS and 2nd ANNOUNCEMENT"The 7th International Conference on Pumps and Fans(ICPF2015)"
· The journal won the first prize of "excellent China sciencepaper online journal" again
· WeChat is Running
· A New Column “Irrigation and Drainage Equipment Manufacturing Technology”Setting Up
· CALL FOR PAPERS “8th INTERNATIONAL SYMPOSIUM ON PUMPING MACHINERY”
                  More 
 

WeChat QR code

主管单位
 江苏省教育厅
主办单位
 江苏大学
协办单位
 中国农业机械学会排灌机械分会
 国家水泵及系统工程技术研究中心
 中国农业工程学会农业水土工程专业委员会
主  编
 袁寿其
编辑出版
 《排灌机械工程学报》编辑部
责任编辑
徐云峰  张文涛 陈建华
谈国鹏  朱漪云 盛    杰
 

Links

 
· KSB
· National Research Center of Pumps
                  More 
 

Copyright © 2011 Journal of Drainage and Irrigation Machinery Engineering
Support by Beijing Magtech Co.Ltd   E-mail: support@magtech.com.cn