JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2009, Vol. 39 ›› Issue (6): 139-142.

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Influence of unsteady term in the N-S equation on convergence of the SIMPLER algorithm

  

  • Received:2008-11-18 Online:2009-12-16 Published:2009-12-16

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Abstract:

For some cases, such as 2-D　lid-driven cavity flow and backward-facing step flow, it is difficult to converge, when some high-order schemes are adopted. The influences of the unsteady term on convergence of the SIMPLER algorithm were discussed. In conclusion, the algorithm with a steady term could not converge with the high Re number, and the  convergence could be greatly improved by adopting the unsteady term.

Key words: the N-S equation; unsteady term; convergence

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