Film cooling and heat transfer form a combination of two rows of simple and/or compound angle hole sin inline and/or staggered configuraiton

摘要

This paper describes the results of an experi- mental investigation into the film cooling effectiveness and heat transfer characteristics of two staggered injection rows of either a combination of one row of simple angle holes with another row of compound angle holes or with both rows of compound angle holes. The effect of using various injections holes arrangement as well as the rela- tive location of the compound angle holes row to the simple angle holes row have been investigated for different blowing rates.