contributor author | Przytarski, Pawel J. | |
contributor author | Wheeler, Andrew P. S. | |
date accessioned | 2022-02-05T22:07:40Z | |
date available | 2022-02-05T22:07:40Z | |
date copyright | 3/1/2021 12:00:00 AM | |
date issued | 2021 | |
identifier issn | 0889-504X | |
identifier other | turbo_143_3_031008.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4276966 | |
description abstract | Further improvements in aero-engine efficiencies require accurate prediction of flow physics and incurred loss. Currently, the computational requirements for capturing these are not known leading to inconsistent loss predictions even for scale-resolving simulations depending on the chosen convergence criteria. This work investigates two aspects of loss generation using high-fidelity simulation. In the first case study, we look at the effect of resolution on capturing entropy generation rate by simulating a Taylor-Green vortex canonical flow. The second case study focuses on the effect of resolution on flow physics and loss generation and uses a compressor cascade subjected to freestream turbulence. The results show that both resolving local entropy generation rate and capturing the inception and growth of instabilities are critical to accuracy of loss prediction. In particular, the interaction of free-stream turbulence at the leading-edge and development of instabilities in the laminar region of the boundary layer are critical to capturing loss. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Accurate Prediction of Loss Using High Fidelity Methods | |
type | Journal Paper | |
journal volume | 143 | |
journal issue | 3 | |
journal title | Journal of Turbomachinery | |
identifier doi | 10.1115/1.4050115 | |
journal fristpage | 031008-1 | |
journal lastpage | 031008-9 | |
page | 9 | |
tree | Journal of Turbomachinery:;2021:;volume( 143 ):;issue: 003 | |
contenttype | Fulltext | |