High resolution 3D direct numerical simulation (DNS) of a model tropopause jet, with an underlying convectively unstable layer, is performed. We obtain quasi-equilibrium turbulent dataset, in which the budgets are nearly balanced. Vertical profiles of turbulence statistics and budgets are presented. Using this DNS dataset, we evaluate the performance of some popular models used in second-order closure of turbulence. To our knowledge, this is first time that such a study is conducted for turbulence under the combined influence of shear and convection. From this quasi-equilibrium dataset, we unambigously identify layers of countergradient momentum and heat fluxes which occur near regions of penetrative convection. These are also regions where conventional second-order closure models fail.
Skip Nav Destination
ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference
July 6–10, 2003
Honolulu, Hawaii, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-3697-5
PROCEEDINGS PAPER
High Resolution DNS of Shear-Convective Turbulence and Its Implications to Second-Order Parameterization
A. Mahalov,
A. Mahalov
Arizona State University, Tempe, AZ
Search for other works by this author on:
B. Nicolaenko,
B. Nicolaenko
Arizona State University, Tempe, AZ
Search for other works by this author on:
B. Joseph
B. Joseph
Arizona State University, Tempe, AZ
Search for other works by this author on:
K. L. Tse
Arizona State University, Tempe, AZ
A. Mahalov
Arizona State University, Tempe, AZ
B. Nicolaenko
Arizona State University, Tempe, AZ
B. Joseph
Arizona State University, Tempe, AZ
Paper No:
FEDSM2003-45333, pp. 1877-1885; 9 pages
Published Online:
February 4, 2009
Citation
Tse, KL, Mahalov, A, Nicolaenko, B, & Joseph, B. "High Resolution DNS of Shear-Convective Turbulence and Its Implications to Second-Order Parameterization." Proceedings of the ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. Volume 2: Symposia, Parts A, B, and C. Honolulu, Hawaii, USA. July 6–10, 2003. pp. 1877-1885. ASME. https://doi.org/10.1115/FEDSM2003-45333
Download citation file:
4
Views
Related Proceedings Papers
Related Articles
Coupling Between Heat and Momentum Transfer Mechanisms for Drag-Reducing Polymer and Surfactant Solutions
J. Heat Transfer (November,1999)
Subgrid-Scale Modeling of Turbulent Convection Using Truncated Navier-Stokes Dynamics
J. Fluids Eng (December,2002)
Analysis of ansys fluent for Wall-Modeled Large-Eddy Simulation of Turbulent Channel Flow
J. Fluids Eng (January,2025)
Related Chapters
Cavitating Structures at Inception in Turbulent Shear Flow
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Variation Characteristics of Acid Rain in Xuchang and Analysis of Its Influencing Factors
International Conference on Measurement and Control Engineering 2nd (ICMCE 2011)
A High Resolution DOA Estimation Method Based on Maximal Eigenvector Reconstruction
International Conference on Future Computer and Communication, 3rd (ICFCC 2011)