Problem of Optimal Control of the Turbulent Boundary Layer on a Permeable Surface in Supersonic Gas Flow
| Autor: | K. G. Garaev, I. R. Mukhametzyanov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics 0209 industrial biotechnology Convective heat transfer Mechanical Engineering General Physics and Astronomy 02 engineering and technology Mechanics Optimal control Physics::Fluid Dynamics Boundary layer 020303 mechanical engineering & transports 020901 industrial engineering & automation 0203 mechanical engineering Flow (mathematics) Supersonic speed Isoperimetric inequality Porous medium Choked flow |
| Zdroj: | Fluid Dynamics. 53:573-581 |
| ISSN: | 1573-8507 0015-4628 |
| DOI: | 10.1134/s0015462818040067 |
| Popis: | The problem of constructing the law of distribution of the normal component of the velocity of blowing to the turbulent boundary layer at supersonic flow velocities which ensure the minimum convective heat flow transmitted from the boundary layer to the surface is considered. The power of the control system calculated with regard to Darcy’s law of flow through a porous medium acts as the isoperimetric condition. The problemis solved using the Dorodnitsyn generalized integral relations. The numerical experiments carried out in the case of flow past a sphere showed the effectiveness of the optimal blowing laws as compared with the uniform law, namely, the gain in the minimized functional reaches 31.82%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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