Simulation of throttle flow with two phase and single phase homogenous equilibrium model

9th International Symposium on Cavitation

Koukouvinis, P.^1 ; Gavaises, M.^1

City University London, Northampton Square, EC 1V 0HB, United Kingdom^1

关键词: Cavitating flow;    Diesel injectors;    Homogenous equilibrium models;    Mass transfer rate;    Single phase;    Throttle flow;    Two phase;    Two-phase model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/656/1/012086/pdf
DOI  :  10.1088/1742-6596/656/1/012086

来源: IOP

【 摘 要 】

This paper aims to compare the results of two commonly used methods for the simulation of cavitating flows; one is the two phase mass transfer approach and the other is a homogenous equilibrium model. Both methodologies are compared in a shock tube and a throttle flow, which resembles the constrictions in Diesel injector passages. The mass transfer rate in the two phase model plays the fundamental role in affecting how close to equilibrium the model is; by increasing the mass transfer the two phase model comes close to the homogenous equilibrium model.