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A Brief Note on the Interaction of an Actuator Cascade with a Singularity

Chamieh, D. and Acosta, A. J. and Brennen, C. E. and Caughey, T. K. (1980) A Brief Note on the Interaction of an Actuator Cascade with a Singularity. In: Rotordynamic Instability Problems in High-Performance Turbomachinery. NASA Conference Publication. No.CP-2133. National Aeronautics and Space Administration , Washington, DC, USA, pp. 237-248. http://resolver.caltech.edu/CaltechAUTHORS:CHAriphpt80

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Abstract

We have recently become concerned with making estimates of steady forces that may be exerted between moving blade rows and stationary blade rows or volutes. Our present interest is with time averaged forces for estimation of shaft loads and flow asymmetry forces rather than with transient processes. For this purpose we have adopted the well-known "actuator" model for the blade row in which the flow leaving the row or cascade is assumed to have a constant leaving angle. The disturbances external to this row such as a volute may be represented by distributions of vortex elements as was done for example by Domm and Hergt [1].


Item Type:Book Section
Additional Information:This work was supported in part under NASA Contract NAS8-33108 and the Byron Jackson Company. This support is gratefully acknowledged.
Record Number:CaltechAUTHORS:CHAriphpt80
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:CHAriphpt80
Alternative URL:http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19800021205_1980021205.pdf
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:203
Collection:CaltechAUTHORS
Deposited By: Christopher Brennen
Deposited On:06 Dec 2004
Last Modified:26 Dec 2012 08:39

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