Study on Flow Analysis of Hot Gas Valve with Pintle

Title & Authors
Study on Flow Analysis of Hot Gas Valve with Pintle
Lee, Kyungwook; Heo, Seonuk; Kwon, Sejin; Lee, Jongkwang;

Abstract
Numerical simulations of the hot gas valve with a pintle have been conducted in order to investigate the effect of numerical methods and computational domains. The grid sensitivity is checked by varying the grid number from 100,000 to 1,700,000. The existence of ambient region doesn't make the significant differences of the flow-field and the temperature distribution. Three turbulence models are adopted to figure out its influence on the thrust and temperature distribution: Spallart-Allmaras, RNG $\small{k-{\varepsilon}}$, $\small{k-{\omega}}$ SST. The thrusts of the hot gas valve are almost same in all cases of the simulation, however, there are about 5% difference in the temperature distribution. With the ambient region, the difference are observed in the temperature distribution with respect to the number of grids.
Keywords
Pintle;Hot Gas Valve;CFD;
Language
Korean
Cited by
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