排灌机械工程学报
   Home  About Journal  Editorial Board  Author Center  Subscriptions    中文 
Journal of Drainage and Irrigation Machinery Engin  2013, Vol. 31 Issue (1): 50-55    DOI: 10.3969/j.issn.1674-8530.2013.01.011
article Current Issue | Next Issue | Archive | Adv Search Previous Articles  |  Next Articles  
simulation and experimental study on submersible selfaspirating aerator
 ZHU  Rong-Sheng, LI  Xiao-Long, SHI  Wei-Dong, LIU  Ling-Ling, WANG  Tao
(1. Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2. Jiangsu Guoquan Pump Co. Ltd., Zhenjiang, Jiangsu 212009, China)
 Download: PDF (5650 KB)   HTML (1 KB)   Export: BibTeX | EndNote (RIS)      Supporting Info
Abstract An openstyle impeller with radial blades and an opentype diffuser were designed according to the performance specifications of a submersible selfaspirating aerator to investigate the fluid flow in the aerator, and their threedimensional models have been generated in CAD codeUG. The turbulent flow through the aerator was simulated by means of CFD softwareAnsysCFX with a multiplephase turbulence flow models, and the simulated results were analyzed and confirmed by related experimental observations. The simulated results showed that when the submersed depth of the aerator was increased to 6.5 m from 2.5 m, the flow patterns in the aerator experienced three changes, such as chaos, smooth and chaos again, accordingly the lowest pressure zone appeared, disappeared and reappeared as well. The experimental data exhibited that when the submersed depth of the aerator was increased to 6.5 m from 2.5 m, the air in the suction pipe got the highest velocity of 4.25 m/s at the 3.5m submersed depth. A similar air velocity in the suction pipe was achieved too. This suggests that predicting performance of aerator by means of CFD method is feasible.
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
ZHU Rong-Sheng
LI Xiao-Long
SHI Wei-Dong
LIU Ling-Ling
WANG Tao
Key wordsselfsuction type submersible aerator;runner with radial blades;numerical simulation   performance test     
Received: 2012-05-14; Published: 2013-01-31
Cite this article:   
ZHU Rong-Sheng,LI Xiao-Long,SHI Wei-Dong et al. simulation and experimental study on submersible selfaspirating aerator[J]. Journal of Drainage and Irrigation Machinery Engin, 2013, 31(1): 50-55.
 
[1] Kim Young Kyu, Ra Deog Gwan. Water surface contacting cover system—The basic study for improving the oxygen transfer coefficient and the BOD removal capacity[J]. Water Research, 2005,39(8):1553-1559.
[2] Wanchai Asvapoositkul, Jirapong Joraden, Somchai Wongwises. CFD modeling of a gasliquid mixing in T-junction[J]. As J Energy Env, 2005,6(3):154-164.
[3] Deng Xiaogang. Experimental study of selfexcited oscillation pulsed jet aerator[C]//5th international Conference on Bioinformatics and Biomedical Engineering.Wuhan,China:[s.n.],2011.
[4] Deswal S.Oxygen transfer by multiple inclined plunging water jets[J]. World Academy of Science, Engineering and Technology, 2008,2(4):272-278.
[5] Deswal S, Verma D V. Performance evaluation and modeling of a conical plunging jet aerator[J]. World Academy of Science, Engineering and Technology,2008,2(1):33-37.
[6] Ratkovich N,Chan C C V, Berube P R, et al. Analysis of shear stress and energy consumption in a tubular airlift membrane system[J]. Water Science and Technology, 2011,64(1):189-198.
[7] Gao Jifei, Gu Guowei, Zhao Zilong, et al. CFD numerical simulation applied in the design of the jet aerator[J].Environmental Informatics Archives, 2005,3:226 - 231.
[8] 陈同德. QSB型深水曝气机结构设计[J]. 机械工程与自动化,2009(2):96-97.
[9] Chen Tongde. Structure design of QSB deep water aerator[J].Mechanical Engineering & Automation,2009(2):96-97.(in Chinese)
[10] 施慧明,刘艳臣,施汉昌,等.深水型表面曝气机的模拟计算与构型比较[J].环境工程学报. 2008, 2(2):154-159.
[11] Shi Huiming, Liu Yanchen, Shi Hanchang, et al. CFD simulation and performance comparison of surface aerator for deep aeration[J]. Chinese Journal of Environmental Engineering, 2008, 2(2):154-159. (in Chinese)
[12] 黄思,王宏君,郑茂溪.叶片式混输泵气液两相流及性能的数值分析[J].华南理工大学学报:自然科学版,2007,35(12):11-16.
Huang Si, Wang Hongjun, Zheng Maoxi. Numerical analysis of gasliquid twophase flow in multiphase rotodynamic pump and pump performance[J]. Journal of South China University of Technology: Natural Science Edition, 2007,35(12):11-16. (in Chinese)
[13] 余志毅,曹树良,王国玉.叶片式混输泵内气液两相流的数值计算[J].工程热物理学报,2007,28(1):46-48.
Yu Zhiyi, Cao Shuliang, Wang Guoyu. CFD analysis of the airwater bubbly flow in a multiphase rotodynamic pump impeller[J]. Journal of Engineering Thermophysics, 2007,28(1):46-48. (in Chinese)
[14] 刘建瑞,苏起钦.自吸泵气液两相流数值模拟分析[J].农业机械学报,2009,40(9):73-76.
Liu Jianrui, Su Qiqin. Numerical simulation on gasliquid twophase flow in selfpriming pump[J]. Transactions of the Chinese Society for Agricultural Machinery, 2009,40(9):73-76.(in Chinese)
[1] ZHOU Ling-Jiu, YUAN Ling-Li. Comparison of internal flows in jet pump predicted by various turbulence models[J]. Journal of Drainage and Irrigation Machinery Engin, 2013, 31(1): 25-30.
[2] LIU Wei, YUAN Shou-Qi, LI Xiao-Jun, PAN Zhong-Yong. Effects of slotted blades on internal flow in centrifugal pump of low specific speed[J]. Journal of Drainage and Irrigation Machinery Engin, 2013, 31(1): 11-14.
[3] YANG Guo-Lai, WU Guo-Guo, LIU Xiao-Xiong, CAO Wen-Bin, XU Min-Ying. Dynamic characteristics of axial flow check valve[J]. Journal of Drainage and Irrigation Machinery Engin, 2013, 31(1): 46-49.
[4] XIANG Qing-Jiang, YUN Qiang-Long, LI Hong, WU Yan-Lan. Experimental study on performance of liquid jet gas pump by utilizing wallattached fluidic oscillator[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(6): 650-654.
[5] WANG Song-Lin, WANG Yu-Chuan, GUI Shao-Bo, GAO Chuan-Chang, CAO Shu-Liang. Analysis of flow in liquid jet pump—Part Ⅰ:Experiment and threedimension numerical simulation[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(6): 655-659.
[6] SHI Wei-Dong, WANG Chuan, SI Qiao-Rui, XU Jing, LU Wei-Gang. Influence of interstage seal clearance on performance of newtype well pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(6): 627-631.
[7] CHENG Li, Bart P.M. van Esch, LIU Chao, ZHOU Ji-Ren, JIN Yan. Radial forces of waterjet propulsion mixedflow pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(6): 636-640.
[8] ZHENG Tie-Gang, DAI Hui-Chao, DING Quan-Lin. Computation of spatial submerged hydraulic jump with different abrupt expansion ratios[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(6): 670-676.
[9] LI Liang-Chao, ZENG Xiang-Wei, XIANG Ke-Feng, XU Bin, SONG Dan-Lu. Numerical simulation of opening process of shuttle check valve[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(6): 710-714.
[10] Shi-Wei-Dong- , LONG Fei, ZHANG De-Sheng, LENG Hong-Fei, WANG Guo-Tao. Numerical simulation of solidliquid twophase turbulent flowin submersible axialflow pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(5): 508-512.
[11] HE Xiu-Hua-1, ZHUO Hong-Cai-1, YANG Song-1, DENG Zhi-Dan-2, Li-Fu-1. Analysis on flow characteristic of flatwalled diffusers applied in valveless piezoelectric pumps[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(5): 532-537.
[12] YANG Cong-Xin, DU Yuan-Ying, LI Yi-Bin. Effects of guide vanes parameters on water resistance coefficient and efficiency of mixedflow pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(5): 538-542.
[13] CHENG Wei-Ping, ZHANG Jun-Jun, CHEN Yi-Min, GAO Yue. Hydraulic control of super short vertical well entry/draft tube[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(5): 548-552.
[14] YUAN Jian-Ping, WANG Long-Yan, HE Zhi-Xia, LIU Xiao-Fan. Comparison of ventilating effect of indoor displacement and mixing ventilation[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(5): 563-566.
[15] ZHAO Zhen-Zhou, YUAN Hong-Hong, ZHENG Yuan, HUANG Juan, ZHAO Zhen-Ning. Numerical simulation on unsteady flow field of straight bladed darrieus wind rotor[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(5): 567-572.

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