Proceedings of the Korean Society of Propulsion Engineers Conference (한국추진공학회:학술대회논문집)
- 2004.03a
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- Pages.460-465
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- 2004
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- 1975-342X(pISSN)
Computational Analysis of Flows of a Lobed Mixer Nozzle using LES
- Ooba, Yoshinoro (Ishikawajima-Harima Heavy Industries Co., Lid.) ;
- Kodama, Hidekazu (Ishikawajima-Harima Heavy Industries Co., Lid.) ;
- Nakamura, Yoshiya (Ishikawajima-Harima Heavy Industries Co., Lid.) ;
- Nozaki, Osamu (Japan Aero-Space Exploration Agenc) ;
- Yamamoto, Kazuomi (Japan Aero-Space Exploration Agenc) ;
- Nishizawa, Toshio (Japan Aero-Space Exploration Agency)
- Published : 2004.03.01
Abstract
ESPR project started in 1999 with METI and NEDO support as five-years program in order to develop necessary technologies for the next-generation SST engine. In ESPR program, jet noise reduction technologies are focused as environmentally compatible technologies, which are critical to realize next-generation SST. In designing a lobed mixer nozzle which is a jet noise suppression system, there are many difficulties to understand the detailed flow phenomena occurred in the system because of its complexity. Large Eddy Simulation (LES) was applied to the lobed mixer nozzle flow analysis in ESPR project. The results demonstrated that LES approach was capable of predicting mixing characteristics of a complicated flow.