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Unsteady three-dimensional flow phenomena have major effects on the aerodynamic performance of, and heat transfer to, gas-turbine blading. Investigation of the mechanisms associated with these phenomena requires an experimental facility that is capable of simulating a gas turbine, but at lower levels of temperature and pressure to allow conventional measurement techniques. This book reports on the design, development and commissioning of a new experimental facility that models these unsteady three-dimensional flow phenomena. The new facility, which consists of a 62%-size, high-pressure gas- turbine stage mounted in a transient wind tunnel, simulates the turbine design point of a full-stage turbine. The book describes the aerodynamic and mechanical design of the new facility, a rigorous stress analysis of the facility's rotating system and the three-stage commissioning of the facility. The book concludes with an assessment of the turbine stage performance.
About the author
Geoff Sheard, DPhil, PhD, MBA, BEng, CEng, FIMechE, FRAeS, FASME, FCIBSE is currently Vice President ¿ Fan Technology, with the Flakt Woods Group and a director of Flakt Woods Ltd, based in Colchester, England. Geoff is also a Visiting Fellow, University of Northampton Business School and a director of the Air Movement and Control Association.
