S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Others_기계항공공학부
다양한 Bleed 조건이 적용된 초음속 흡입구 성능 수치연구
Numerical Study of Supersonic Inlet Performance under Various Bleed Conditions
- 최요한; 김종암
- Issue Date
- 제 13회 우주발사체기술 심포지움, 대전, 2014, pp. 60-67
- This paper deals with a numerical investigation of bleed effect on supersonic inlet performance under various bleed conditions. Because of high computational cost of direct simulation of each bleed holes, slater’s 2009 bleed boundary condition model is used. Firstly, the bleed model is implemented and validated by solving validation cases. Then, a supersonic inlet used in Nagashima’s experiments and bleeds are simulated to show the effect of bleed on performance of supersonic inlet. The kriging method in conjunction with a GA(Genetic Algorithm) is used to find the optimal condition of bleeds on the supersonic inlet, and EI(Expected Improvement) is introduced to enhance the kriging model. The optimal condition can be achieved when terminal shock is located in the throat of the supersonic inlet and an effect of flow separation is small.