scholarly journals Computation of viscous incompressible flow using pressure correction method on unstructured Chimera grid

2006 ◽  
Vol 20 (9) ◽  
pp. 637-650 ◽  
Author(s):  
Xing Zhang
Keyword(s):  
Incompressible Flow ◽  
Correction Method ◽  
Pressure Correction ◽  
Viscous Incompressible Flow ◽  
Chimera Grid

scholarly journals A pressure-correction method and its applications on an unstructured Chimera grid

2008 ◽  
Vol 37 (8) ◽  
pp. 993-1010 ◽  
Author(s):  
Xing Zhang ◽  
Saizhen Ni ◽  
Guowei He
Keyword(s):  
Correction Method ◽  
Pressure Correction ◽  
Chimera Grid

APPLICATION OF A PRESSURE CORRECTION METHOD FOR MODELING INCOMPRESSIBLE FLOW THROUGH TURBOMACHINES

2009 ◽  
Vol 06 (03) ◽  
pp. 399-411 ◽  
Author(s):  
M. T. RAHMATI
Keyword(s):  
Experimental Data ◽  
Incompressible Flow ◽  
Numerical Scheme ◽  
Numerical Solutions ◽  
Turbulence Modeling ◽  
Flow Analysis ◽  
Correction Method ◽  
Pressure Correction ◽  
Flow Simulations ◽  
Flow Through

This article presents the application of a RANS algorithm based on a pressure correction method for incompressible flow simulations of low-speed rotating machines. A numerical scheme is developed by extending a flow analysis in a stationary frame to a rotating frame for turbomachinery applications. The numerical scheme is explained with emphasis on the effect of rotation on the flow fields and turbulence modeling. The results of the numerical calculations for flow through an enclosed turbomachine and an extended turbomachine are compared with the experimental data to judge them on realistic flow patterns. The numerical solutions have shown reasonable agreement with the experimental data which demonstrates the merits and robustness of this numerical scheme.

On Analysis of Stationary Viscous Incompressible Flow Through a Radial Blade Machine

2010 ◽  
Author(s):  
Tomáš Neustupa ◽  
Theodore E. Simos ◽  
George Psihoyios ◽  
Ch. Tsitouras
Keyword(s):  
Incompressible Flow ◽  
Viscous Incompressible Flow ◽  
Flow Through

Numerical Investigations of Centrifugal Compressor Flows With Tip Leakage Using a Pressure Correction Method

1993 ◽  
Author(s):  
A. Tourlidakis ◽  
R. L. Elder
Keyword(s):  
Flow Pattern ◽  
High Speed ◽  
Stokes Equations ◽  
Correction Method ◽  
Secondary Flows ◽  
Tip Clearance ◽  
Physical Models ◽  
Wake Flow ◽  
Operating Characteristics ◽  
Pressure Correction

In this paper, a three-dimensional computational model for the solution of the time-averaged Navier-Stokes equations, based on a pressure correction method and the k-ε turbulence model, is presented and implemented for the viscous flow modelling through a series of centrifugal compressors. Theoretical calculations with the current fully elliptic method are carried out and the results are compared critically with available experimental data and with results from other computational models. A radial and two backswept high-speed subsonic compressors with different geometrical and operating characteristics are analysed at design and off-design conditions. In all cases, a wake flow pattern is evident and strong secondary flows are discerned. The tip clearance effects on the relative flow pattern are found to be important and are appropriately simulated. The predictive capability of the current flow model is judged to be encouraging taking into consideration the limitations of the physical models and the numerical schemes involved in the computations.

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