A Numerical Simulation of the Flow in a Diffusing S-Duct Inlet

Lifen Zhang, Zhenxia Liu and Jian Jiang

Modern Applied Science, 2009, vol. 3, issue 4, 111

Abstract: A numerical simulation of the flow inside a diffusing S-duct inlet is conducted. The primary discussion herein focuses on flow analysis and development of secondary flow in the S-duct diffuser inlet. Full three-dimensional Navier-Stokes equations are solved and SST turbulence model is employed. Numerical results, including surface static pressure, total pressure recovery at exit, are compared with experiment. And fairly good agreement is apparent. Total performance, such as average total pressure recovery and distortion, is agreed well with the experiment. Shock waves in outer flow, pressure recovery and distortion at the exit are also discussed.Â

Date: 2009
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