Technique to Calculate Cell Face Velocity of a Non-Staggered Grid System

LI Wang; YU Bo; WANG Xin-ran; SUN Shu-yu

doi:10.3879/j.issn.1000-0887.2012.08.003

Volume 33 Issue 8

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LI Wang, YU Bo, WANG Xin-ran, SUN Shu-yu. Technique to Calculate Cell Face Velocity of a Non-Staggered Grid System[J]. Applied Mathematics and Mechanics, 2012, 33(8): 933-942. doi: 10.3879/j.issn.1000-0887.2012.08.003

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Technique to Calculate Cell Face Velocity of a Non-Staggered Grid System

doi: 10.3879/j.issn.1000-0887.2012.08.003

¹Beijing Key Laboratory of Urban Oil and Gas Distribution Technology, China University of Petroleum, Beijing 102249, P.R.China;²Computational Transport Phenomena Laboratory, Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia

Funds: 国家自然科学基金资助项目(51176204；51134006)；国家重点基础研究和发展资助项目（2011CB610306）

Received Date: 2011-11-28
Rev Recd Date: 2012-03-31
Publish Date: 2012-08-15

Abstract

Abstract

The calculation of cell face velocity in the discretization of continuity equation, momentum equation and scalar equation of a non-staggered grid system were discussed. Both momentum interpolation and linear interpolation were adopted to evaluate the coefficients in the discretized momentum and scalar equation, and their performances were compared. When linear interpolation was used to calculate coefficients, the mass residual term in the coefficients must be dropped to maintain the solution accuracy and its convergence rate.
- collocated grid,
- staggered grid,
- momentum interpolation

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References

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