Aerodynamics of Turbine Blade Cooling Air Feed Rig System: Iris Researcher: Nicholas Wright Mentor: Dr. Shigeo Hayashibara ERAU/NASA Space Grant Honeywell.

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Presentation transcript:

Aerodynamics of Turbine Blade Cooling Air Feed Rig System: Iris Researcher: Nicholas Wright Mentor: Dr. Shigeo Hayashibara ERAU/NASA Space Grant Honeywell Sponsored Senior Capstone Project ( ) Arizona Space Grant Consortium Symposium April 18, 2015

Main Topics 1. Research Problem and Objectives 2. CFD Analysis Approach 3. Half Plane Simulation 4. Half Plane Simulation Results 5. Use of Simulation Results 2

1. Research Problem and Objectives Research Problem Turbine rig (Iris) is theoretically designed to minimize pressure loss but it is difficult to verify this claim with the real rig. Research Objectives Identify total pressure loss regions in inlet, if any, with CFD models Discuss inlet design improvements if necessary Iris Inlet [Diffuser, Feed Duct, Inlet Guide Vane] 3

2. CFD Analysis Approach Approach 2D Model -> Half Plane 3D Model -> Full 3D Model CFD Steps 1. Geometry -> CATIA 2. Mesh -> Pointwise 3. Solver -> ANSYS Fluent 4. Post-Process -> FieldView 5. Iterate if necessary 4

3. Half Plane Simulation Pointwise Mesh Fluent Model/Boundary Conditions Spalart-Allmaras turbulence model Transient time, pressure-based solver Mass flow inlet Symmetry plane Outflow condition on outlet Mesh Type# of Points# of Cells Unstructured1,095,1365,738,755 Mesh of Iris Inlet 5

4. Half Plane Simulation Results 6 Pressure Contours/Velocity Vectors of Simulated Air Flow through Center of the Half Plane Model Plane of Interest

Half Plane Simulation Results 7 Pressure Contours of Simulated Airflow around the Supports and Inlet Guide Vane at the Mean Radius Line of the Blades of the Inlet Guide Vane Plane of Interest

5. Use of Simulation Results Half Plane Model is not validated Results cannot be used to describe the actual airflow through the inlet of the turbine rig (Iris) Use of Half Plane Simulation Results Identify potential areas of the inlet (i.e. the diffuser) that may produce total pressure loss regions in latter CFD models 8

Thank You 9