Using LES Model to Research the Acoustic Characteristics in the Near and Far-field of Supersonic Hot Jet
This paper presents numerical simulations of supersonic high-temperature jet using Large Eddy Simulation (LES). Sub-grid scale turbulence is modeled using Smagorinsky model with different Smagorinsky coefficients Cs=0.1 and Cs=0.01. Based on turbulence characteristics, noise sources and integral surfaces are determined. Acoustic characteristics predictions are performed by the Ffowcs Williams-Hawkings (FW-H) equation using the flow field provided by the 3D LES unsteady simulation. The numerical calculation results are compared with experimental data to validate the feasibility and accuracy of this numerical method.
jet aerodynamic noise numerical simulation Large Eddy Simulation (LES)
Shengchao Hu Futing Bao Yu Zhao
National Key Laboratory of Combustion. Flow and Thermo-Structure Northwestern Polytechnical University Xian, China
国际会议
海口
英文
69-72
2011-07-15（万方平台首次上网日期，不代表论文的发表时间）