Design modification of rotor 67 by 3D inverse method - Inviscid-flow limit

Thong Q Dang, A. C. Nerurkar, D. R. Reddy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A design modification of Rotor 67 is carried out with a full 3D inverse method. The blade camber surface is modified to produce a prescribed pressure loading distribution, with the blade tangential thickness distribution and the blade stacking line at midchord kept the same as the original Rotor 67 design. Because of the inviscid-flow assumption used in the current version of the method, Rotor 67 geometry is modified for use at a design point different from the original design value. In the subsonic section, smooth pressure loading shapes generally produce blades with well-behaved blade surface pressure distributions. In the supersonic section, this study shows that the strength and position of the passage shock correlate with the characteristics of the blade pressure loading shape. In general, "smooth" prescribed blade pressure loading distributions generate blade designs with reverse cambers which have the effect of weakening the passage shock.

Original languageEnglish (US)
Title of host publicationAircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume1
ISBN (Electronic)9780791878682
DOIs
StatePublished - 1997
EventASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1997 - Orlando, United States
Duration: Jun 2 1997Jun 5 1997

Other

OtherASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1997
CountryUnited States
CityOrlando
Period6/2/976/5/97

ASJC Scopus subject areas

  • Engineering(all)

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    Dang, T. Q., Nerurkar, A. C., & Reddy, D. R. (1997). Design modification of rotor 67 by 3D inverse method - Inviscid-flow limit. In Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery (Vol. 1). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/97-GT-484