An efficient coupled approach between inviscid Euler and integral boundary layer solutions has been developed for quasi-3-D unsteady flows induced by vibrating blades. For unsteady laminar and turbulent boundary layers, steady correlations are adopted in a quasi-steady way to close the integral boundary layer model. This quasi-steady adoption of the correlations is assessed by numerical test results using a direct solution of the unsteady momentum integral equation. To conduct the coupling between the inviscid and viscous solutions for strongly interactive flows, the unsteady Euler and integral boundary layer equations are simultaneously time-marched using a multistep Runge–Kutta scheme, and the boundary layer displacement effect is accounted for by a first order transpiration model. This time-resolved coupling method converges at conditions with considerable boundary layer separation.
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January 1993
Research Papers
Inviscid-Viscous Coupled Solution for Unsteady Flows Through Vibrating Blades: Part 1—Description of the Method
L. He,
L. He
Whittle Laboratory, Cambridge University, Cambridge, United Kingdom
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J. D. Denton
J. D. Denton
Whittle Laboratory, Cambridge University, Cambridge, United Kingdom
Search for other works by this author on:
L. He
Whittle Laboratory, Cambridge University, Cambridge, United Kingdom
J. D. Denton
Whittle Laboratory, Cambridge University, Cambridge, United Kingdom
J. Turbomach. Jan 1993, 115(1): 94-100 (7 pages)
Published Online: January 1, 1993
Article history
Received:
February 20, 1991
Online:
June 9, 2008
Connected Content
A companion article has been published:
Inviscid-Viscous Coupled Solution for Unsteady Flows Through Vibrating Blades: Part 2—Computational Results
Citation
He, L., and Denton, J. D. (January 1, 1993). "Inviscid-Viscous Coupled Solution for Unsteady Flows Through Vibrating Blades: Part 1—Description of the Method." ASME. J. Turbomach. January 1993; 115(1): 94–100. https://doi.org/10.1115/1.2929222
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