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ISSN Online: 2377-424X

International Heat Transfer Conference 4
August 31 - September 5, 1970, Paris-Versailles, France

HEAT TRANSPER IN COMPRESSIBLE TURBULENT BOUNDARY LAYER WITH AIR INJECTION

Get access (open in a dialog) DOI: 10.1615/IHTC4.2500
pages 1-10

Resumo

Results of study of heat transfer in a transpired turbulent boundary layer at supersonic speeds are reported. Egressions for calculation are proposed and they show good agreement with experimental data. Measurements were made on a porous cylinder with its axis parallel to an free stream at Mach numbers 0,3; 2,05; 3,05; 4. Air gas was injected into the turbulent boundary layer through the cylinder wall in a range for 0 to 5 of change, of blowing parameter bm. The free stream Reynolds numbers Re were 6·102÷1,32·104. Experimental data are presented taking into consideration recovery factor reduction with increasing injection rate.