Research on Computational Fluid Dynamics with Effect of Grid Quality on the Accuracy of Simulated Results of Two Dimensional Low-Speed Parallel Flow

Ning Kang; Yuan Cao

doi:10.4028/www.scientific.net/AMM.685.232

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Research on Computational Fluid Dynamics with Effect of Grid Quality on the Accuracy of Simulated Results of Two Dimensional Low-Speed Parallel Flow
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 685Research on Computational Fluid Dynamics with...

Research on Computational Fluid Dynamics with Effect of Grid Quality on the Accuracy of Simulated Results of Two Dimensional Low-Speed Parallel Flow

Abstract:

In the field of computational fluid dynamics, grid generation costs most of work. The accuracy and reliability of the simulated results depend directly on grid quality. The two dimensional parallel flow with low speed was used to study the effect of grid quality on simulated results. Several conclusions are obtained. The computational error decreases with the increase of domain size in flow direction. Too many grids in flow direction will lead to bigger round-off error, while too few grids will make it harder to catch the correct flow. The increase of grid quantity in the direction perpendicular to flow direction will decrease the computational error, but the effect is not obvious. Increasing the grid quantity in the area near the wall will decrease the computational error.

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Periodical:

Applied Mechanics and Materials (Volume 685)

Pages:

232-235

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.685.232

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Online since:

October 2014

Authors:

Ning Kang, Yuan Cao*

Keywords:

CFD, Computational Error, Grid Quality, Parallel Flows

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* - Corresponding Author

References

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