Abstract:In order to study the performance and characteristics of the internal flow field of gas-liquid jet pumps with air as working fluid,the gas-liquid jet pump test models with different structures were designed. Boundary conditions were determined according to the data obtained from test. The gas-liquid jet pump was numerically simulated in the same working-gas pressure and different parameters by k-ε turbulence model and VOF method. The simulation results show that the gas liquid jet pumps with expansion nozzles has good velocity and static pressure distributions,the air-liquid jet pumps with 5 mm distance from throat to mouth and that with 6 mm diameter of mixed chamber have good velocity distributions. The gas-liquid jet pumps, nozzle with the expansion, mixed chamber with 5 mm from throat to mouth and 6 mm diameter have better velocity distributions.
朱荣生, 燕浩, 李继忠, 苏保稳, 胡自强. 小型气液射流泵内部流场数值模拟及优化选择[J]. 排灌机械工程学报, 2010, 28(3): 207-210.
Zhu Rongsheng, Yan Hao, Li Jizhong, Su Baowen, Hu Ziqiang. Numerical simulation of internal flow and optimization for small-scale gas-liquid jet pump. Journal of Drainage and Irrigation Machinery Engin, 2010, 28(3): 207-210.
[1]王常斌,林建忠,石兴.射流泵湍流场的数值模拟与实验研究[J].高校化学工程学报,2006,20(2):175-179.Wang Changbin, Lin Jianzhong, Shi Xing. Numerical simulation and experiment on the turbulent flow in the jet pump[J]. Journal of Chemical Engineering of Chinese Universities, 2006,20(2):175-179. (in Chinese)[2]Gu Jianlong, Zhang Zhitao, Song Chunlian, et al. Numerical simulation of mixing process of gas-liquid impinging jet in ballast water discharge pipe[J]. Chemical Engineering Journal, 2009,150(2/3):344-351.[3]徐海涛,桑芝富,卓震.FLUENT在超音速蒸汽喷射真空泵中的应用[C]∥FLUENT第二届中国用户大会.上海:[s.n.],2002.[4]Fluent Inc. FLUENT User′s Guide[M]. Fluent Inc., 2003.[5]Guillaume D W, Judge T A. Improving the efficiency of a jet pump using an elliptical nozzle[J]. Review of Scientific Instruments, 1999, 70 (12): 4727-4729.[6]袁丹青, 白滨, 王冠军, 等.多喷嘴射流泵流场的数值模拟与PIV测量[J].排灌机械,2009,27(1):35-38.Yuan Danqing, Bai Bin, Wang Guanjun, et al. PIV measurement and numerical simulation of flow field in multi-nozzle jet pump[J]. Drainage and Irrigation Machinery,2009,27(1):35-38. (in Chinese)[7]朱荣生,李继忠,付强,等.潜水泵泄漏液体在线排除装置的设计与开发[J].排灌机械,2008,26(5):5-8.Zhu Rongsheng, Li Jizhong, Fu Qiang,et al. Design and implementation of online liquid leaking excluder device for submersible pump[J]. Drainage and Irrigation Machinery, 2008,26(5):5-8. (in Chinese)[8]Cramers P H M R,Beenackers A A C M.Influence of the ejector configuration scale and the gas density on the mass transfer characteristics of gas-liquid ejectors[J]. Chemical Engineering Journal,2001,82(1/3):131-141.[9]Chuech S G,Che C C,Lu J C, et al.Design and implementation of ejector driven micropump[J].Energy Conversion and Management,2007,48(10):2657-2662.[10]Senthil K R,Kumaraswamy S,Mani A.Experimental investigations on a two-phase jet pump used in desalination systems[J].Desalination,2007,204(1/3):437-447.