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Numerical simulations of soft and hard turbulence - Preliminary results for two-dimensional convection
- Source :
- Physical Review Letters. 64
- Publication Year :
- 1990
- Publisher :
- United States: NASA Center for Aerospace Information (CASI), 1990.
-
Abstract
- Results on the transition from soft to hard turbulence in simulations of two-dimensional Boussinesq convection are reported. The computed probability densities for temperature fluctuations are exponential in form in both soft and hard turbulence, unlike what is observed in experiments. In contrast, a change is obtained in the Nusselt number scaling on Rayleigh number in good agreement with the three-dimensional experiments.
- Subjects :
- Fluid Mechanics And Heat Transfer
Subjects
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 64
- Database :
- NASA Technical Reports
- Journal :
- Physical Review Letters
- Publication Type :
- Report
- Accession number :
- edsnas.19900048659
- Document Type :
- Report
- Full Text :
- https://doi.org/10.1103/PhysRevLett.64.2370