High Work, High-Efficiency Turbines for Uninhabited Aerial Vehicles (UAVs) Addendum to AFRL-RQ-WP-TR-2013-0198

Abstract

Abstract : This series of publications document the activities and results of an AFOSR-funded, in-house, basic research effort. The effort was focused on the fluid mechanics and heat transfer that is associated with advanced turbine aerodynamic designs, particularly for small engines. The objectives of this task were to identify and evaluate loss mechanisms for very highly loaded turbines and turbines intended to operate at low Reynolds number, and investigate passive and fluidic techniques for the control of separation, reattachment, blade row outlet air angle deviations, secondary flows, and similar loss producing phenomena. The results are applicable to both military and civil applications of gas turbine engines. The following titles published in professional journals and conference proceedings (or unpublished) are provided in this addendum to AFRL-RQ-WP-TR-2013-0198: ? ?PIV Investigation of a Highly-Loaded LPT Blade Using a Curved Laser-Sheet? (88ABW-2008-1431) ? ?High Lift LPT Blade Suction Surface Flow Investigation Using Surface Stress Sensitive Film? (88ABW-2009-3033) ? ?Turbulence Model Comparisons for Mixing Plane Simulations of a Multistage Low Pressure Turbine Operating at Low Reynolds Numbers? (88ABW-2009-3036) ? ?Predicting Separation and Transitional Flow in Turbine Blades at Low Reynolds Numbers? (WPAFB 2007-0314) ? ?A CFD and Experimental Investigation of Unsteady Wake Effects on a Highly Loaded Low Pressure Turbine Blade at Low Reynolds Number? (88ABW-2009-5080) ? ?Curved laser-sheet for conformal surface flow diagnostics? (88ABW-2010-4706) ? ?CFD Modeling of Separation and Transitional Flow in Low Pressure Turbine Blades at Low Reynolds Numbers? (dissertation, 88ABW-2009-4567) ? ?Design and Validation of a High-Lift Low-Pressure Turbine Blade? (dissertation) ? ?Characterization of Internal Wake Generator at Low Reynolds Number with a Linear Cascade of Low Pressure Turbine Blades? (thesis, 88ABW-2010-2046)