Induction force characters of screw centrifugal pump on solid-liquid unsteady flow condition
Zhang Zhao1, Su Min2*, Han Wei1, Li Rennian1, Quan Hui1, Li Yibin1
1.School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China; 2.College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China
Abstract:Numerical simulation of solid-liquid two-phase unsteady flow in the 150×100LN-32 screw centrifugal pump was simulated by using unsteady reynolds averaged Navier-Stokes equations and moving mesh. The distribution of the pressure at volute outlet, radial force, axial force and total moment are presented in this paper, analysis on influence of value and direction of the induction force on different solid-volume fractions. The results indicated that different solid-volume fractions have no effect on trend and direction of pressure at volute、radial force、axial force and total moment during one period, but the value of induction forces increase with the increasing of solid-volume fraction;The pressure on the monitoring points have fluctuations with different trends during one period, it depends on the direction of the monitoring points and the interaction of impeller and volute. With the rotation of impeller, the pressure in the whole passage are further increased along the impeller rotation direction with the effect of impeller;different solid-volume fractions have no effect on fluctuation trend of monitoring points, but the value of pressure on monitoring points increase with the increasing of solid-volume fraction.
张钊, 苏敏, 韩伟, 李仁年, 权辉, 黎义斌. 螺旋离心泵固液两相非定常流动诱导力特性[J]. 排灌机械工程学报, 2015, 33(4): 296-300.
Zhang Zhao, Su Min*, Han Wei, Li Rennian, Quan Hui, Li Yibin. Induction force characters of screw centrifugal pump on solid-liquid unsteady flow condition. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(4): 296-300.
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