旋进旋涡流量计气固两相流数值模拟与实验研究

Numerical Simulation and Experimental Research of the Swirlmeter Delivering Gas-solid Two-phase Flow

以50 mm口径旋进旋涡流量计为研究对象,利用计算流体动力学软件FLUENT,采用欧拉-欧拉模型,结合RNG k-ε湍流模型与SIMPLEC算法对流量计内部进行气固两相数值模拟和实验研究,对旋进旋涡流量计气固两相流动中固相的体积分布规律、速度场分布、压力场分布进行了探讨,并做了相应的实验研究。结果表明:颗粒浓度越大,监测点的压力频率越小,流量计读数越小,流体流动越复杂,在流道壁面上的固体颗粒分布越多。

The research object in this paper is a 50 mm precession vortex flow meter. Based on the Eulerian-Eulerian Model and RNG k-ε turbulence model, this paper carries out an numerical simulation of gas-solid two-phase flow of the swirlmeter by the CFD software FLUENT and experiment research. The volume distribution, velocity field distribution and pressure field distribution of gas-solid two-phase flow in the swirlmeter are studied. Corresponding experimental research is completed. The results show that when particle concentration become more, the precession frequency become smaller;the flow rate of the swirlmeter is also smaller, the fluid flow is more complicated, and there are more particles are distributed on the piping walls.