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Large-eddy simulation of turbulent flow in a pipe at extreme Reynolds numbers
| Content Provider | Semantic Scholar |
|---|---|
| Author | Saito, Namiko Pullin, D. I. Blackburn, Hugh M. |
| Copyright Year | 2014 |
| Abstract | Large-eddy simulations (LES) of turbulent flow in a smoothwall pipe at Reynolds numbers based on the pipe Radius R and wall friction velocity in the range Reτ = 2,000−2,000,000 are discussed. Using a Reynolds number based on D and the bulkflow velocity, then corresponding values are ReD = 91,800 − 165,000,000. For the LES, the spectral-element code SEMTEX was used combined with the stretched-vortex subgridscale model and a wall model. Calculated friction factors are found to be in reasonable agreement with super-pipe measurements. An estimate of the Kármán constant κ is made using a least-square fit to the friction-factor verses ReD results obtained from the LES, giving κ = 0.43. |
| Starting Page | 1 |
| Ending Page | 3 |
| Page Count | 3 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://users.monash.edu.au/~bburn/pdf/482.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
