Author: O. NozakiPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Three-dimensional Viscous Analysis of Rotor-stator Interaction in a Transonic Compressor
Author: O. NozakiViscous Analysis of Three-dimensional Rotor Flows Using a Multigrid Method
Author: Andrea ArnonePublisher:
ISBN:
Category : Multigrid methods (Numerical analysis)
Languages : en
Pages : 40
Book Description
Viscous Analysis of Three-dimensional Rotor Flows Using a Multigrid Method
Author: Three-dimensional Viscous Rotor Flow Calculations Using a Viscous-inviscid Interaction Approach
Author: Scientific and Technical Aerospace Reports
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 880
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
A Numerical Study of the 3D Flowfield in a Transonic Compressor Rotor with a Modelling of the Tip Clearance Flow
Author: W. N. DawesPublisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
Modelling the complex flowfield in a transonic axial compressor rotor is a considerable but worthwhile challenge for flow prediction methods. This paper describes a computer code aimed at solving the equations of three dimensional viscous compressible flow in turbomachine geometries. The code is applied to the study of the flowfield in a transonic axial compressor rotor at design speed at both maximum flow and towards stall. The rotor was designed at DFVLR and tested using laser two-focus velocimetry. The rotor has a hub-tip ratio of 0.5 and design speed of 20260 rpm. At the design point the rotor pressure ratio is 1.626 and the mass flow 17.1 kg/s. The predicted flowfield is compared with the laser measurements and the performance of the code discussed. In addition the discussion highlights the changes in the predicted endwall and tip clearance flows as the rotor operating point is moved towards stall.
Viscous Analysis of Three-Dimensional Rotor Flows Using a Multigrid Method
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722937195
Category :
Languages : en
Pages : 40
Book Description
A three-dimensional code for rotating blade-row flow analysis was developed. The space discretization uses a cell-centered scheme with eigenvalues scaling for the artificial dissipation. The computational efficiency of a four-stage Runge-Kutta scheme is enhanced by using variable coefficients, implicit residual smoothing, and a full-multigrid method. An application is presented for the NASA rotor 67 transonic fan. Due to the blade stagger and twist, a zonal, non-periodic H-type grid is used to minimize the mesh skewness. The calculation is validated by comparing it with experiments in the range from the maximum flow rate to a near-stall condition. A detailed study of the flow structure near peak efficiency and near stall is presented by means of pressure distribution and particle traces inside boundary layers. Arnone, A. Glenn Research Center NCC3-233; RTOP 505-90-5K...
An Experimental and Computational Study of the Flow in a Transonic Compressor Rotor
Author: William Tilton ThompkinsPublisher:
ISBN:
Category : Compressors
Languages : en
Pages : 145
Book Description
Author: 
Author: I-Chung Chang