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Characterization Of Internal Wake Generator At Low Reynolds Number With A Linear Cascade Of Low Pressure Turbine Blades, Chase A. Nessler
Characterization Of Internal Wake Generator At Low Reynolds Number With A Linear Cascade Of Low Pressure Turbine Blades, Chase A. Nessler
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Unsteady flow and its effects on the boundary layer of a low pressure turbine blade is complex in nature. The flow encountered in a low pressure turbine contains unstructured free-stream turbulence, as well as structured periodic perturbations caused by upstream vane row wake shedding. Researchers have shown that these conditions strongly influence turbine blade performance and boundary layer separation, especially at low Reynolds numbers. In order to simulate these realistic engine conditions and to study the effects of periodic unsteadiness, a moving bar wake generator has been designed and characterized for use in the Air Force Research Labs low speed …