Boundary conditions for Euler equations at internal block faces of multi-block domains using local grid refinement

Kassies, A.; Tognaccini, Renato

doi:10.2514/6.1990-1590

Cited by 14 publications

(1 citation statement)

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“…Other publications on the subject were concerned with applications or extensions of this technique (e.g. References [40][41][42]). In a di erent approach, Seidl et al [34] employed patched grids to the solution of the Navier-Stokes equations and showed the suitability of the blockwise reÿnement to parallel computation.…”

Section: Introductionmentioning

confidence: 99%

Local block refinement with a multigrid flow solver

Lange

Schäfer

Durst

2001

Numerical Methods in Fluids

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SUMMARYA local block reÿnement procedure for the e cient computation of transient incompressible ows with heat transfer is presented. The procedure uses patched structured grids for the blockwise reÿnement and a parallel multigrid ÿnite volume method with colocated primitive variables to solve the NavierStokes equations. No restriction is imposed on the value of the reÿnement rate and non-integer rates may also be used. The procedure is analysed with respect to its sensitivity to the reÿnement rate and to the corresponding accuracy. Several applications exemplify the advantages of the method in comparison with a common block structured grid approach. The results show that it is possible to achieve an improvement in accuracy with simultaneous signiÿcant savings in computing time and memory requirements.

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Section: Introductionmentioning

confidence: 99%