Abstract:Under different conditions of slip boundary and non-slip boundary, numerical simulations for the flows inside micro-machined spiral-channel viscous pump are investigated using laminar model and various two-equation turbulence models of standard k-ε, RNG k-ε model and realizable k-ε,respectively. All the simulation results in the spiral channel show that the velocity distributions with slip boundary are more uniform than those with non-slip boundary, and both the pressure distributions are similar. For performance curves of flow rate and pressure difference, the comparisons between the calculated results and the experimental data show that, for the non-slip boundary, all the calculated results deviate considerably from the experimental and the laminar model predicts better than the turbulence ones, whereas for the slip boundary, all the models predict effectively and well, and standard k-ε and RNG k-ε model predict a bit better than laminar one, especially in high rotating speed.
唐学林, 李林伟, 苏砚文, 王福军, 黎耀军, 时晓燕. 螺旋槽流道微泵的数值模拟方法分析[J]. 排灌机械工程学报, 2010, 28(1): 31-37.
Tang Xuelin, Li Linwei, Su Yanwen, Wang Fujun, Li Yaojun, Shi Xiaoyan. Analysis of numerical simulation method for flow inside micro-machined spiral-channel pump. Journal of Drainage and Irrigation Machinery Engin, 2010, 28(1): 31-37.
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