Effects Of Non-reflecting Boundary Conditions On The Convergence Rate And The Size Of Solution Domain
Author(s)
S. Talebi, E. Shirani
Abstract
Effects of non-reflecting boundary conditions
on the convergence rate and the size of
solution domain
S. Talebi', E. Shirani*
^ Yazd University, Yazd, Iran
^Isfahan University of Technology, Isfahan, Iran
Abstract
In this paper effects of boundary conditions at free boundaries and the size of
solution domain have been studied. The locations of the boundaries can effect
considerably the flow solution. Smaller solution domain causes to reduce the
convergence rate and accuracy. The use of non-reflecting boundary conditions
(NRBC) at the free boundaries decreases the sensitivity of the solution with
regard to the location of the boundaries. In this study, 1-D and 2-D NRBC are
used to simulate in viscid flow over a bump, and underexpanded jet. When
NRBC is applied to the bump problem, the results show that the number of
iterations can be reduced by up to seventy percent and it allows choosing
smaller solution domain up to twenty seven percent without loosing accuracy.
For the unde
Keywords
Related Book
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