Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지
DOI QR코드

DOI QR Code

ACCURACY IMPROVEMENT OF THE BLEED BOUNDARY CONDITION WITH THE EFFECTS OF POROSITY VARIATIONS AND EXPANSION WAVES

다공도 및 팽창파의 영향을 고려한 BLEED 경계조건 수치 모델링의 정확도 향상 연구

  • Kim, G. (Department of Aerospace Engineering, Seoul National University) ;
  • Choe, Y. (Department of Aerospace Engineering, Seoul National University) ;
  • Kim, C. (Department of Aerospace Engineering, Seoul National University)
  • 김광현 (서울대학교 기계항공공학부) ;
  • 최요한 (서울대학교 기계항공공학부) ;
  • 김종암 (서울대학교 기계항공공학부)
  • Received : 2016.03.04
  • Accepted : 2016.03.26
  • Published : 2016.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

The present paper deals with accuracy improvement of a bleed boundary condition model used to improve the performance of supersonic inlets. In order to accurately predict the amount of bleed mass flow rates, this study performs a scaling of sonic flow coefficient data for 90-degree bleed holes in consideration of Prandtl-Meyer expansion theory. Furthermore, it is assumed that porosity varies with stream-wise location of the porous bleed plate to accurately predict downstream boundary layer profiles. The bleed boundary condition model is demonstrated through Computational Fluid Dynamics(CFD) simulations of bleed flows on a flat plate with/without an oblique shock. As a result, the bleed model shows the improved accuracy of bleed mass rates and downstream boundary layer profiles.

Keywords

References

  1. 1996, Willis, B.P. and Davis, D.O., "Boundary Layer Development Downstream of a Bleed Mass Flow Removal Region," AIAA 1996-3278.
  2. 1995, Willis, B.P., Davis, D.O. and Hingst, W.R., "Flow Coefficient Behavior for Boundary Layer Bleed Holes and Slots," AIAA 1995-0031.
  3. 1995, Willis, B.P., Davis, D.O. and Hingst, W.R., "Flowfield Measurements in a Normal-Hole-Bled Oblique Shock Wave and Turbulent Boundary Layer Interaction," AIAA 1995-2885.
  4. 2014, Choe, Y., "Numerical Study of Bleed Effect on Supersonic Inlet Performance under Various Bleed Conditions," Master's dissertation, Seoul National University.
  5. 1994, Mayer, D.W. and Paynter, G.C., "Boundary Conditions for Unsteady Supersonic Inlet Analyses," AIAA Journal, Vol.32, No.6, pp.1200-1206. https://doi.org/10.2514/3.12120
  6. 2009, Slater, J.W., "Improvements in Modeling 90-degree Bleed Holes for Supersonic Inlet," AIAA 2009-0710.
  7. 2000, Doerffer, P.P. and Bohning, R., "Modeling of Perforated Plate Aerodynamics Performance," Tech. Rep.8.
  8. 2001, Kim, K.H., Kim, C. and Rho, O.H., "Methods for the Accurate Computations of Hypersonic Flows, Part 1: AUSMPW+ Scheme," Journal of Computational Physics, Vol.174, No.1, pp.38-80. https://doi.org/10.1006/jcph.2001.6873
  9. 1988, Yoon, S. and Jameson, A., "Lower-Upper Symmetric-Gauss-Seidel Method for the Euler and Navier-Stokes Equations," AIAA Journal, Vol.26, No.9, pp.1025-1026. https://doi.org/10.2514/3.10007
  10. 1994, Menter, F.R., "Two-Equation Eddy-Viscosity Turbulence Model for Engineering Applications," AIAA Journal, Vol.32, No.8, pp.1598-1605. https://doi.org/10.2514/3.12149
  11. 1997, Toro, E.F., "Riemann Solvers and Numerical Methods for Fluid Dynamics: A Practical Introduction," Springer-Verlag, pp.409-488.
  12. 1979, Van Leer, B., "Towards the Ultimate Conservative Difference Scheme. V. A Second Order Sequel to Godunov's Methods," Journal of Computational Physics, Vol.32, No.1, pp.101-136. https://doi.org/10.1016/0021-9991(79)90145-1
  13. 2009, Ghosh, S., Choi, J.I. and Edwards, J.R., "Simulation of Shock/Boundary-Layer Interactions with Bleed Using Immersed-Boundary Methods," AIAA 2009-1330.
  14. 2010, Bunnag, S., "Bleed Rate Model Based on Prandtl-Meyer Expansion for a Bleed Hole Normal to a Supersonic Freestream," Master's dissertation, University of Cincinnati.

Cited by

  1. Supersonic Bleed Rate Model for a Circular Orifice Based on Geometric Similarity vol.58, pp.6, 2016, https://doi.org/10.2514/1.j058495