Title: Numerical computation of aerodynamic drag coefficient for high temperature particles
Abstract: For gas-solid two-phase flow field of motor nozzle,the accurate calculation of metal particle drag was very important to simulate the whole flow field.However,the heat transfer between high temperature particles and surrounding gas could change gas features,which further affect aerodynamic drag of particles.Turbulence model and enhanced wall treatment method were used to calculate aerodynamic drag coefficient of single spherical particle at different temperature difference between the particles and surrounding gas,when the adopted Re number varies from 0 to 10 000.The results show that aerodynamic drag of single particle increases as particle temperature increases,but the increase amplitude decreases as Re number increases.According to calculation results,the calculation formula of aerodynamic drag coefficient of high-temperature particle taking Re number as independent variable was fitted.By comparison with experimental data at low Re number,the applicability and reliability of the fitting formula were verified.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
Access and Citation
Cited By Count: 2
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot