Turbulence - minimum dissipation and maximum macroscopic momentum exchange
- The minimum dissipation requirement of the thermodynamics of irreversible processes is applied to characterize the existence of laminar and non-laminar, and the co-existence of laminar and turbulent flow zones. Local limitations of the different zones and three different forms of transition are defined. For the Couette flow a non-local “corpuscular” flow mechanism explains the logarithmic law-of-the-wall, maximum turbulent dimensions and a value x=0,415 for the v. Kármán constant. Limitations of the logarithmic law near the wall and in the centre of the experiment are interpreted.
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| Author: | Hans Paul Drescher |
|---|---|
| DOI: | https://doi.org/10.21269/11145 |
| Document Type: | Working Paper |
| Language: | English |
| Year of Completion: | 2021 |
| Publishing Institution: | Fachhochschule Aachen |
| Date of the Publication (Server): | 2024/04/19 |
| Length: | 44 Seiten |
| Zugriffsart: | weltweit |
| Licence (German): |  Creative Commons - Namensnennung |
