Author: Scott M. Richardson
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 236
Book Description
This report describes the development of an implicit, viscous method for the solution of the quasi-three-dimensional flow equations for rotor-stator interaction in transonic turbomachinery. The flow algorithm is described, followed by the implicit time-marching scheme, and the one-equation turbulence model. The algorithm is implemented on an unstructured grid arrangement of locally structured micro-blocks called 'patches.' Solution-dependent adaptation is used to refine the grid in regions containing flow features which require enhanced resolution. An overlapped sliding grid interface is used to transfer flow equation information between the respective blade grids. The resulting computational algorithm has been used to perform a number of validation exercises and has been demonstrated on a modern transonic turbine stage. Where possible, these results are compared with experimental data and show the ability of the method to accurately capture the unsteady flow physics in a robust and computationally efficient manner.
Solution-adaptive Calculation of Unsteady Blade Row Interactions in Transonic Turbomachinery
Author: Scott M. Richardson
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 236
Book Description
This report describes the development of an implicit, viscous method for the solution of the quasi-three-dimensional flow equations for rotor-stator interaction in transonic turbomachinery. The flow algorithm is described, followed by the implicit time-marching scheme, and the one-equation turbulence model. The algorithm is implemented on an unstructured grid arrangement of locally structured micro-blocks called 'patches.' Solution-dependent adaptation is used to refine the grid in regions containing flow features which require enhanced resolution. An overlapped sliding grid interface is used to transfer flow equation information between the respective blade grids. The resulting computational algorithm has been used to perform a number of validation exercises and has been demonstrated on a modern transonic turbine stage. Where possible, these results are compared with experimental data and show the ability of the method to accurately capture the unsteady flow physics in a robust and computationally efficient manner.
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 236
Book Description
This report describes the development of an implicit, viscous method for the solution of the quasi-three-dimensional flow equations for rotor-stator interaction in transonic turbomachinery. The flow algorithm is described, followed by the implicit time-marching scheme, and the one-equation turbulence model. The algorithm is implemented on an unstructured grid arrangement of locally structured micro-blocks called 'patches.' Solution-dependent adaptation is used to refine the grid in regions containing flow features which require enhanced resolution. An overlapped sliding grid interface is used to transfer flow equation information between the respective blade grids. The resulting computational algorithm has been used to perform a number of validation exercises and has been demonstrated on a modern transonic turbine stage. Where possible, these results are compared with experimental data and show the ability of the method to accurately capture the unsteady flow physics in a robust and computationally efficient manner.
Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 261)
Aeronautical Engineering
NASA Technical Memorandum
Scientific and Technical Aerospace Reports
NASA SP.
Applied mechanics reviews
Advanced Earth-to-orbit Propulsion Technology--1994
Author: Robert J. Richmond
Publisher:
ISBN:
Category : Liquid propellant rockets
Languages : en
Pages : 690
Book Description
Publisher:
ISBN:
Category : Liquid propellant rockets
Languages : en
Pages : 690
Book Description