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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2006, Vol. 27 ›› Issue (5): 778-783.

• 论文 • Previous Articles     Next Articles

Numerical Simulation Research of the Fighter Ejection Escape System

CHEN De-hua1,2, WU Wen-hua2, WANG Jin-jun1   

  1. 1. Fluid Mechanics Institute, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;2. High Speed Institute of Chinese Aerodynamic Research and Development Center, Mianyang 622661, China
  • Received:2005-04-01 Revised:2005-10-11 Online:2006-10-25 Published:2006-10-25

Abstract: Based on Jameson’s finite volume method, an Euler equation solver with high precision hybrid grid is developed to calculate the aerodynamic characteristics of ejection escape system with complex, non-regular and non-streamline shape. An N-S equation solver with S-A turbulence model based on Euler equation solver is also developed in the paper. Several speeding convergence measures make the solution more reliable. The computation result for ejection seat system at large angle of attack is in good accordance with the wind tunnel test result. It can help to analyze the aerodynamic characteristics of ejection seat system by Mach number distribution, pressure distribution and so on. The numerical simulation can be the reasonable complement of wind tunnel test.

Key words: aerospace engineering, ejection escape system, numerical simulation, hybrid grid, Navier-Stokes equation

CLC Number: