XIE Hao, ZHANG Jing-zhou. Numerical study on adiabatic wall cooling effectiveness and convective heat transfer coefficient of effusion cooling[J]. 2009, 24(6).
XIE Hao, ZHANG Jing-zhou. Numerical study on adiabatic wall cooling effectiveness and convective heat transfer coefficient of effusion cooling[J]. 2009, 24(6).DOI:
The influences of the adjacent holes spacing and blowing ratio on the adiabatic wall cooling effectiveness and convective heat transfer coefficient of effusion cooling with the film holes in staggered arrangement were numerically investigated.The results show that
with the decrease of adjacent holes spacing or the increase of blowing ratio
the average temperature in the film holes region reduces and the temperature distribution uniformity is improved for all the calculated cases
so that the adiabatic wall cooling effectiveness increases along with the convective heat transfer coefficient.In relation to the decrease of adiabatic holes spacing
the influence of blowing ratio increase is not obvious
especially when the blowing ratio is greater than 1