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首页> 外文会议>International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems >Unsteady Numerical Simulation for Gas-liquid Two-phase Flow in Self-priming Process of Centrifugal Pump
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Unsteady Numerical Simulation for Gas-liquid Two-phase Flow in Self-priming Process of Centrifugal Pump

机译：离心泵自吸工过程中气液两相流的不稳定数值模拟

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摘要

A common vertical self-priming centrifugal pump was selected as the object in this paper.Using unsteady numerical simulation,the authors investigated the transient gas-liquid two-phase flow in the self-priming centrifugal pump during the self-priming process.The main innovation in the simulation was that a section of the suction pipe filled with air was set as the initial condition,which conformed to the actual self-priming conditions.The gas-liquid two-phase distribution,the pressure and velocity in relation to time were computed and analyzed.Flow rates of both phases with time at the pump inlet and outlet were obtained based on the simulation,which could be used to estimate the self-priming time and other performance parameters.
机译：选择一个常见的垂直自吸离心泵作为本文的目的。作者在自引发过程中研究了非稳态数值模拟，研究了自灌注离心泵中的瞬态气液两相流。主要模拟中的创新是，填充空气的抽吸管的一部分被设定为初始条件，符合实际的自灌注条件。气液两相分布，与时间相关的压力和速度是计算和分析。基于模拟获得了泵入口和出口时两相的流出率，可用于估计自引发时间和其他性能参数。

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