Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on Prediction of the Base Pressures for an Axi-Symmetric Body

  • Baik, Doo-Sung (Graduate School of Automotive Engineering Kookmin University) ;
  • Han, Young-Chool (Graduate School of Automotive Engineering Kookmin University)
  • Published : 2001.10.01
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Abstract

A flow modeling method has been developed to analyze the flow in the annular base (rear- facing surface) of a circular engine nacelle flying at subsonic speed but with a supersonic exhaust jet. Real values of exhaust gas properties and temperature at an altitude of 30, 000 feet are employed. Potential flows of the air and gas streams are computed for the flow past a separated wake. Then a viscous jet mixing is superimposed on this inviscid solution. Conserva- tion of mass, momentum and energy for the wake flow field is achieved by multiple iterations with modest computer requirements.

Keywords

References

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