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Recent Advances in Numerical Simulation and Control of Asymmetric Flows Around Slender Bodies

  • O. A. Kandil
  • T.-C. Wong
  • H. H. Sharaf El-Din
  • C. H. Liu
Conference paper
Part of the International Union of Theoretical and Applied Mechanics book series (IUTAM)

Summary

The problems of asymmetric flow around slender bodies and its control are formulated using the unsteady, compressible, thin-layer or full Navier-Stokes equations which are solved using an implicit, flux-difference splitting, finite-volume scheme. The problem is numerically simulated for both locally-conical and three-dimensional flows. The numerical applications include studies of the effects of relative incidence, Mach number and Reynolds number on the flow asymmetry. For the control of flow asymmetry, the numerical simulation cover passive and active control methods. For the passive control, the effectiveness of vertical fins placed in the leeward plane of geometric symmetry and side strakes with different orientations is studied. For the active control, the effectiveness of normal and tangential flow injection and surface heating and a combination of these methods is studied.

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References

  1. 1.
    Kandil, O. A.; Wong, T-C.; Liu, C. H.: Prediction of Steady and Unsteady Asymmetric Vortical Flow Around Cones. AIAA 90–0598, 1990. Also in AIAA Journal, Vol. 29. No. 12, pp. 1269–1278, 1991.Google Scholar
  2. 2.
    Kandil, O. A.; Wong, T-C.; Liu, C. H.: Asymmetric Flow Around Cones with Noncircular Sections. AGARD Symposium on Missile Aerodynamics, AGARD CP No. 493, Friedrickshafen, Germany, pp. 16. 1–16. 11, 1990.Google Scholar
  3. 3.
    Kandil, O. A.; Wong, T-C.; Liu, C. H.: Numerical Simulation of Steady and Unsteady Asymmetric Vortical Flows. ASME Symposium on Non-Steady Fluid Dynamics, FED-Vol. 92, Toronto, Canada, pp. 99–108, 1990. Also in the Journal of Fluids and Structures, Vol. 6, pp. 249–265, 1992.Google Scholar
  4. 4.
    Kandil, O. A;, Wong, T-C.; Kandil, H., A.; Litt, C. H.: Computation and Control of Asymmetric Vortex Flow Around Circular Cones Using Navier-Stokes Equations. ICAS Paper No. 3.5.3, Vol. 2, Stockholm, Sweden, pp. 883–893, 1990.Google Scholar
  5. 5.
    Kandil, O. A.; Wong, T-C.; Kandil, H. A.; Liu, C. H.: Thin-Layer and Full Navier-Stokes, Locally-Conical and Three-Dimensional Asymmetric Solutions. AIAA 91–0547, 1991.Google Scholar
  6. 6.
    Stahl, W.: Suppression of Asymmetry of Vortex Flow Behind a Circular Cone at High Incidence. Proceedings of the AIAA Atmospheric Flight Mechanics Conference, Boston, MA, AIAA 39–3372-CP, pp. 231–236, 1989.Google Scholar
  7. 7.
    Ng, T. T.: On Leading Edge Vortex and Its Control. Proceedings of the AIAA Atmospheric Flight Mechanics Conference, Boston, MA, AIAA 89–3346-CP, pp. 1–15, 1989.Google Scholar
  8. 8.
    Moskovitz, C., Hall, R.: DeJarnette; Experimental Investigation of a New Device to Control the Asymmetric Flowfield on Forebodies at Large Angles of Attack. AIAA 90–0069, 1990.Google Scholar
  9. 9.
    Skow, A. M.; Peake, D. J.: Control of the Forebody Vortex Orientation by Asymmetric Air Injection, (Part B) — Details of the Flow Structure. AGARD-LS-121, High Angleof-Attack Aerodynamics, pp. 10. 1–10. 22, 1982.Google Scholar
  10. 10.
    Ng, T. T.; Suarez, C. J.: Malcolm, N.; Forebody Vortex Control Using Slot Blowing. Proceedings of the AIAA 9th Applied Aerodynamics Conference, Baltimore, Maryland, AIAA 91–3254-CP, pp. 412–421, 1991.Google Scholar
  11. 11.
    Gittner, M. N.; Chokani, N.: An Experimental Study of the Effects of Aft Blowing on a 3.0 Caliber Tangent Ogive Body at High Angles of Attack. Proceedings of the AIAA 9th Applied Aerodynamics Conference, Baltimore, Maryland, AIAA 91–3252-CP, pp. 390–399, 1991.Google Scholar
  12. 12.
    Font, G. I.; Celik, Z. Z.; Roberts, L.: A Numerical and Experimental Study of Tangential Jet Blowing Applied to Bodies at High Angles of Attack. Proceedings of the AIAA 9th Applied Aerodynamics Conference, Baltimore, Maryland, AIAA 91–3253-CP, pp. 400–411, 1991.Google Scholar
  13. 13.
    Ng, T. T.: Aerodynamic Control of NASP-Type Vehicles Through Vortex Manipulation. AIAA 90–0594, 1990.Google Scholar
  14. 14.
    Tavella, D. A.; Schiff, L. B.: Cummings, R. M.; Pneumatic Vortical Flow Control at High Angles of Attack. AIAA 90–0098, 1990.Google Scholar
  15. 15.
    Gee, K.; Tavella, D.; Schiff, L. S.: Comptutational Optimization of a Pneumatic Forebody Flow Control Concept. Proceedings of the AIAA 9th Applied Aerodynamics Conference, Baltimore, Maryland, AIAA 91–3249-CP, pp. 370–380, 1991.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • O. A. Kandil
    • 1
  • T.-C. Wong
    • 1
  • H. H. Sharaf El-Din
    • 1
  • C. H. Liu
    • 2
  1. 1.Dept. of Mechanical Engineering and MechanicsOld Dominion UniversityNorfolkUSA
  2. 2.Theoretical Flow Physics Br.NASA LangleyHamptonUSA

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