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Showing results 1 to 5 of 5 Search took 0.00 seconds. Search: Posts Made By: FMDenaro

Forum: Main CFD Forum July 26, 2016, 15:11

Replies: 10 Independent Existence of Smallest Scale (Kolmogorov) Eddies Views: 1,180 Posted By FMDenaro Again, I do not understand... if you have an... Again, I do not understand... if you have an estimation of the Taylor micro-scale and Kolmogorov scale, that means you have estimation of turbulence characteristic scales therefore you contradicts...

Forum: Main CFD Forum July 26, 2016, 14:12

Replies: 10 Independent Existence of Smallest Scale (Kolmogorov) Eddies Views: 1,180 Posted By FMDenaro I do not understand your sentence "I'm actually... I do not understand your sentence "I'm actually trying to justify not utilizing DNS by showing that the results that I have obtained using a coarse (relative to Kolmog. scale) mesh and time steps"....

Forum: Main CFD Forum July 26, 2016, 13:00

Replies: 10 Independent Existence of Smallest Scale (Kolmogorov) Eddies Views: 1,180 Posted By FMDenaro Actually, before doing a CFD simulation you... Actually, before doing a CFD simulation you should be aware of the main physical features of the flow problem...Generally, the Reynolds number is the first indicator. Setting a grid size able to...

Forum: Main CFD Forum July 26, 2016, 12:39

Replies: 10 Independent Existence of Smallest Scale (Kolmogorov) Eddies Views: 1,180 Posted By FMDenaro you can have large structures in laminar flow,... you can have large structures in laminar flow, immagine for example the backward facing step flow (Re<400) or the flow around a cylinder at low Re. The key is that they cannot transfer energy to...

Forum: Main CFD Forum July 26, 2016, 12:25

Replies: 10 Independent Existence of Smallest Scale (Kolmogorov) Eddies Views: 1,180 Posted By FMDenaro If there are no large scales that creates the... If there are no large scales that creates the intertial energy transfer, the flow is simply laminar, the viscous term strongly acting at low wavenumbers components destroyng the energy cascade.

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