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Design of a Highly Offset Pipe-to-Annular Flow Inlet

[+] Author Affiliations
Jack Zausner

GE Global Research Center, Niskayuna, NY

Paper No. GT2006-90861, pp. 401-409; 9 pages
  • ASME Turbo Expo 2006: Power for Land, Sea, and Air
  • Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B
  • Barcelona, Spain, May 8–11, 2006
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4240-1 | eISBN: 0-7918-3774-2
  • Copyright © 2006 by ASME


Conceptual design and CFD analysis of an inlet to a compressor is undertaken. In this design the inlet transitions pipe flow to annular flow and provides for a mechanical device to be mounted in centerline and in front of the compressor. The solution to this constraint along with the constraints of uniform outlet flow and low weight, size, and total pressure drop consists of: a highly offset transition region, where pipe flow is transitioned into annular flow, and a nozzle region, with the goal of delivering uniform flow to the compressor at minimal pressure drop. The design approach consists of utilizing CFD to guide the overall shape of the inlet toward desirable regions of the design space, then examining specific parameters and optimizing these to meet the constraints. A final analytical inlet design, optimized in the regions of interest, is selected for experimental work.

Copyright © 2006 by ASME



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