contributor author | J. C. Collie | |
contributor author | B. A. Gregory | |
contributor author | H. L. Moses | |
contributor author | J. A. Schetz | |
date accessioned | 2017-05-08T23:42:47Z | |
date available | 2017-05-08T23:42:47Z | |
date copyright | October, 1993 | |
date issued | 1993 | |
identifier issn | 0889-504X | |
identifier other | JOTUEI-28633#687_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/112755 | |
description abstract | High-pressure-ratio turbines have flows dominated by shock structures that pass downstream into the next blade row in an unsteady fashion. Recent numerical results have indicated that these unsteady shocks may significantly affect the aerodynamic and mechanical performance of turbine blading. High cost and limited accessibility of turbine rotating equipment severely restrict the quantitative evaluation of the unsteady flowfield in that environment. Recently published results of the Virginia Tech transonic cascade facility indicate high integrity in simulation of the steady-state flow phenomena. The facility has recently been modified to study the unsteady effects of passing shock waves. Shock waves are generated by a shotgun blast upstream of the blade row. Shadowgraph photos and high-response pressure data are compared to previously published experimental and numerically predicted results. Plots are included that indicate large fluctuations in estimated blade lift and cascade loss. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Recent Advances in Simulating Unsteady Flow Phenomena Brought About by Passage of Shock Waves in a Linear Turbine Cascade | |
type | Journal Paper | |
journal volume | 115 | |
journal issue | 4 | |
journal title | Journal of Turbomachinery | |
identifier doi | 10.1115/1.2929303 | |
journal fristpage | 687 | |
journal lastpage | 698 | |
identifier eissn | 1528-8900 | |
keywords | Shock waves | |
keywords | Cascades (Fluid dynamics) | |
keywords | Turbines | |
keywords | Unsteady flow | |
keywords | Blades | |
keywords | Shock (Mechanics) | |
keywords | Pressure | |
keywords | Flow (Dynamics) | |
keywords | Simulation | |
keywords | Equipment performance | |
keywords | Fluctuations (Physics) AND Steady state | |
tree | Journal of Turbomachinery:;1993:;volume( 115 ):;issue: 004 | |
contenttype | Fulltext | |