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Please use this identifier to cite or link to this item: http://hdl.handle.net/2005/226

Title: A High-Resolution Procedure For Euler And Navier-Stokes Computations On Unstructured Grids
Authors: Jawahar, P
Advisors: Kamath, Hemant
Submitted Date: Sep-2000
Publisher: Indian Institute of Science
Abstract: 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.
URI: http://etd.iisc.ernet.in/handle/2005/226
Appears in Collections:Aerospace Engineering (aero)

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