Numerical Investigation of Transitional Flow Through a Low-Pressure Turbine Cascade

2003 ◽  
Author(s):  
Donald Rizzetta ◽  
Miguel Visbal
Keyword(s):  
Numerical Investigation ◽  
Low Pressure ◽  
Transitional Flow ◽  
Turbine Cascade ◽  
Low Pressure Turbine ◽  
Flow Through

Numerical and experimental investigation of the turbulent flow through a low-pressure turbine cascade in the endwall region

PAMM ◽  
2013 ◽  
Vol 13 (1) ◽  
pp. 311-312 ◽  
Author(s):  
Denis Koschichow ◽  
Jochen Fröhlich ◽  
Roberto Ciorciari ◽  
Ilker Kirik ◽  
Reinhard Niehuis
Keyword(s):  
Experimental Investigation ◽  
Turbulent Flow ◽  
Low Pressure ◽  
Turbine Cascade ◽  
Low Pressure Turbine ◽  
Flow Through

Large-Eddy Simulation of Transitional Flow Through a Low-Pressure Turbine Cascade

2006 ◽  
Author(s):  
Shirdish Poondru ◽  
Urmila Ghia ◽  
Karman Ghia
Keyword(s):  
Large Eddy Simulation ◽  
Air Force ◽  
Time Integration ◽  
Low Pressure ◽  
Transitional Flow ◽  
Low Pressure Turbine ◽  
Compact Difference ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Flow Through

Subsonic, transitional flow through a low-pressure turbine (LPT) cascade is investigated using high-order compact difference scheme in conjunction with large-eddy simulation (LES). Three-dimensional simulations are performed at chord inlet Reynolds numbers (Re) of 25,000 and 50,000. The inlet Mach number is approximately 0.06. An MPI-based higher-order accurate, Chimera version of the FDL3DI flow solver developed by the Air Force Research Laboratory at Wright Patterson Air Force base, is extended for the present turbomachinery application. The implicit solver is based on an approximate factored time-integration method of Beam and Warming. Fourth-order compact-difference formulations are used for discretizing spatial derivatives in conjunction with sixth-order non-dispersive filtering. Solutions are obtained both with and without a sub-grid scale (SGS) model. A dual topology, 16-block, structured grid generated using GridPro is utilized for all simulations. The flow features are examined, and the results for both LES approaches are compared to each other, and with experimental data.

Numerical Investigation of Linear Low-Pressure Turbine Cascade with Periodic Unsteadiness Generating Device

2020 ◽  
Author(s):  
Zachary D. Robison ◽  
Andreas Gross ◽  
Nathan Fletcher ◽  
Christopher Marks ◽  
Rolf Sondergaard
Keyword(s):  
Numerical Investigation ◽  
Low Pressure ◽  
Turbine Cascade ◽  
Low Pressure Turbine
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