Grid-independent Issue in Numerical Heat Transfer

Details Grid-independent Issue in Numerical Heat Transfer Grid-independent Issue in Numerical Heat Transfer

2006-09-25

arxiv.org/abs/math-ph/0609066v2

Physics

Mathematical Physics

8 pages

Scientific paper

Grid independent is associated with the accuracy or even rationality of numerical results. This paper takes two-dimensional steady heat transfer for example to reveal the effect of grid resolution on numerical results. The law of grid dependence is obtained and a simple mathematical formula is presented. The production acquired here can be used as the guidance in choosing grid density in numerical simulation and get exact grid independent value without using infinite fine grid. Through analyzing grid independent, we can find the minimum number of grid cells that is needed to get grid-independent results. Such strategy can save computational resource while ensure a rational computational result.

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