Simulation of Vortex Ring Interaction

Meinke, Matthias; Hofhaus, J.; Abdelfattah, A.

doi:10.1007/978-94-011-5042-2_9

Cited by 3 publications

(1 citation statement)

References 9 publications

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“…Multi-block grids are realised in the pseudo-DNS which are extensively used in the Japanese automotive industry for the flow around cars, through the interior, or through the engine compartment (58). Moving multiblock grids are applied on curvilinear coordinates for pseudo-DNS of the vortex formation in a 4-valve piston engine by Meinke et al (85). The step to use hybrid unstructured grids is also gone by Ducros et al (33) in an LES of a pipe flow.…”

Section: Numericsmentioning

confidence: 99%

Direct numerical and large eddy simulations in nuclear applications

Grötzbach

Wörner

1999

International Journal of Heat and Fluid Flow

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Direct numerical and large eddy simulations are powerful tools for analyses of turbulent flows at low, respectively large Reynolds or Rayleigh numbers in fundamental research. The current status of both methods and recent extensions are compiled. The progress achieved with subgrid scale models and numerics makes the method attractive for applications to nuclear research and engineering. Examples of realistic technical flows are discussed. Open problems are mainly related to more general subgrid scale models for large complex containers, to the wall and inlet conditions for high Reynolds number and buoyant flows, and to discretisation schemes for local refinement of spatial resolution. As a classical example for the use of direct simulations, results are presented for a turbulent internally heated horizontal fluid layer. The analysis of the closure terms in the transport equation of the kinetic energy demonstrates major difficulties of the conventional statistical modelling for partially stably stratified convection.

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Section: Numericsmentioning

confidence: 99%