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TsAGI Science Journal

ISSN Imprimer: 1948-2590
ISSN En ligne: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.v41.i3.20
pages 259-267

THE FUNDAMENTAL PROPERTIES OF SEPARATION IN UNSTEADY SUPERSONIC IDEAL GAS FLOWS

Renat Yamilovich Tugazakov
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia

RÉSUMÉ

It is shown analytically that unsteady supersonic gas flow, as well as stationary flow, detaches from a streamlined surface when a Ferri point vortical singularity (VS) floats from it. Analysis of conditions under which the separation of stationary and unsteady gas flows occurs is carried out.

RÉFÉRENCES

  1. Bajenova, T. V and Gvozdeva, L. G., Nonstationary Interactions of Shock Waves.

  2. Hillier, R., Computation of shock wave diffraction at a ninety degrees convex edge.

  3. Ericsson, L. E. and King, H. H., Rapid prediction of high-alpha unsteady aerodynamics of slender-wing aircraft.

  4. Tugazakov, R. Ya., Influence of the nonstationarity on the aerodynamic coefficients of aircrafts at their control systems deviations.

  5. Tugazakov, R. Ya., Supersonic gas flow nonstationary separation theory at flowing over a convex angle.

  6. Fletcher, C. A. J., Vortical singularity behind a highly yawed cone.

  7. Tugazakov, R. Ya., Investigation of the problem on the arbitrary two-dimensional discontinuity breakup.

  8. Kochin, N. E., To the Theory of Discontinuities in Fluids.

  9. Sagomonyan, A. Ya. and Poruchikov, V. B., Spatial Problems of Compressible Fluid Unsteady Flows.

  10. Chernyi, G. G., Gas Dynamics.

  11. Beryozkina, M. K., Krasovskaya, I. V., and Ofengame, D. H., Diffraction of two-shock configuration of the reflection at the convex cylindrical surface.

  12. Beryozkina, M. K., Krasovskaya, I. V., and Ofengame, D. H., Diffraction of two-shock configuration of the reflection at the concave cylindrical surface.


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