Optimal injection of coolant into the laminar boundary layer of a compressible gas

✍ Scribed by K.G. Garayev

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 315 KB
• Volume: 65
• Category: Article
• ISSN: 0021-8928
• DOI: 10.1016/s0021-8928(01)00029-6

✦ Synopsis

The problem of minimizing the convective heat flux, transmitted from the boundary layer to the surface of a body in a flow, is considered under supersonic flow conditions. The specific coolant flow rate across a porous or perforated shell is regarded as the control, and the power of the cooling system, determined using Darcy's filtration law, is regarded as the constraint. Unlike similar papers on the optimal control of a boundary layer [l-3], the equation for the conservation of energy in the heat shielding shell of the apparatus is additionally considered. This approach enables one to maintain the desired temperature of the outside of the skin by profiling the skin thickness. 0 2001