| contributor author | Schroeder, Robert P. | |
| contributor author | Thole, Karen A. | |
| date accessioned | 2017-05-09T01:34:17Z | |
| date available | 2017-05-09T01:34:17Z | |
| date issued | 2016 | |
| identifier issn | 0889-504X | |
| identifier other | turbo_138_09_091001.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/162798 | |
| description abstract | Shaped film cooling holes have become a standard geometry for protecting gas turbine components. Few studies, however, have reported flowfield measurements for moderately expanded shaped holes and even fewer have reported on the effects of high freestream turbulence intensity relevant to gas turbine airfoils. This study presents detailed flowfield and adiabatic effectiveness measurements for a shaped hole at freestream turbulence intensities of 0.5% and 13%. Test conditions included blowing ratios of 1.5 and 3 at a density ratio of 1.5. Measured flowfields revealed a counterrotating vortex pair (CRVP) and high jet penetration into the mainstream at the blowing ratio of 3. Elevated freestream turbulence had a minimal effect on mean velocities and rather acted by increasing turbulence intensity around the coolant jet, resulting in increased lateral spreading of coolant. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Effect of High Freestream Turbulence on Flowfields of Shaped Film Cooling Holes | |
| type | Journal Paper | |
| journal volume | 138 | |
| journal issue | 9 | |
| journal title | Journal of Turbomachinery | |
| identifier doi | 10.1115/1.4032736 | |
| journal fristpage | 91001 | |
| journal lastpage | 91001 | |
| identifier eissn | 1528-8900 | |
| tree | Journal of Turbomachinery:;2016:;volume( 138 ):;issue: 009 | |
| contenttype | Fulltext | |
