Record Details

A High-Resolution Procedure For Euler And Navier-Stokes Computations On Unstructured Grids

Electronic Theses of Indian Institute of Science

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Title A High-Resolution Procedure For Euler And Navier-Stokes Computations On Unstructured Grids
 
Creator Jawahar, P
 
Subject Fluid Dynamics
Numerical Grid Generation
Fluid dynamics - Data processing
Computational Fluid Dynamics
Euler Equation
Navier-Stokes Equation
Unstructured Grid Computations
Unstructured Grid Generation
Euler Computations
Navier-Stokes Computations
Multi-Dimensional Limiter
Linear Reconstruction
 
Description A finite-volume procedure, comprising a gradient-reconstruction technique and a multidimensional limiter, has been proposed for upwind algorithms on unstructured grids. The high-resolution strategy, with its inherent dependence on a wide computational stencil, does not suffer from a catastrophic loss of accuracy on a grid with poor connectivity as reported recently is the case with many unstructured-grid limiting procedures. The continuously-differentiable limiter is shown to be effective for strong discontinuities, even on a grid which is composed of highly-distorted triangles, without adversely affecting convergence to steady state. Numerical experiments involving transient computations of two-dimensional scalar convection to steady-state solutions of Euler and Navier-Stokes equations demonstrate the capabilities of the new procedure.
 
Publisher Indian Institute of Science
 
Contributor Kamath, Hemant
 
Date 2006-07-20T04:21:31Z
2006-07-20T04:21:31Z
2006-07-20T04:21:31Z
2000-09
 
Type Electronic Thesis and Dissertation
 
Format 27396032 bytes
application/pdf
 
Identifier http://etd.iisc.ernet.in/handle/2005/226
null
 
Language en
 
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