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- Title
ALE-VMS formulation for stratified turbulent incompressible flows with applications.
- Authors
Bazilevs, Y.; Korobenko, A.; Yan, J.; Pal, A.; Gohari, S. M. I.; Sarkar, S.
- Abstract
A numerical formulation for incompressible flows with stable stratification is developed using the framework of variational multiscale methods. In the proposed formulation, both density and temperature stratification are handled in a unified manner. The formulation is augmented with weakly-enforced essential boundary conditions and is suitable for applications involving moving domains, such as fluid-structure interaction. The methodology is tested using three numerical examples ranging from flow-physics benchmarks to a simulation of a full-scale offshore wind-turbine rotor spinning inside an atmospheric boundary layer. Good agreement is achieved with experimental and computational results reported by other researchers. The wind-turbine rotor simulation shows that flow stratification has a strong influence on the dynamic rotor thrust and torque loads.
- Subjects
STRATIFIED flow; TURBULENT flow; INCOMPRESSIBLE flow; THRUST -- Aerodynamics; TORQUE; DENSITY
- Publication
Mathematical Models & Methods in Applied Sciences, 2015, Vol 25, Issue 12, p2349
- ISSN
0218-2025
- Publication type
Article
- DOI
10.1142/S0218202515400114