Solution Evolutionary Method of Compressible Boundary Layers Stability Problems

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Solution Evolutionary Method of Compressible Boundary Layers Stability Problems

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ABSTRACT

In the paper the solution evolutionary method of hydrodynamic stability problems is offered. The essence of this method consists that an arbitrary initial disturbance is described by one wave with the greatest increment on large times, which varies according to the lawexp(-iωτ) . In order to verify the new method and to work out the numerical scheme the stability calculations were carried out also on the base of the classical theory. The evolutionary method is used to study the effects of the gas injection direction through a porous surface on stability of a supersonic boundary layer at the Mach number M=2. It was established that with reduction of a slope angle of a gas injection to the flat plate the stability of a boundary layer increases, and the tangential blowing influence on a boundary layer stability of is poorly

KEYWORDS

evolutionary method, compressible boundary-layer, hydrodynamic stability, gas injection, numerical scheme

REFERENCES

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Cite this paper

S. A. Gaponov, A. N. Semenov. (2016) Solution Evolutionary Method of Compressible Boundary Layers Stability Problems. International Journal of Mathematical and Computational Methods, 1, 175-181