Print Email Facebook Twitter Effect of viscosity and density gradients on turbulent channel flows Title Effect of viscosity and density gradients on turbulent channel flows Author Patel, A. Peeters, J. Boersma, B.J. Pecnik, R. Faculty Mechanical, Maritime and Materials Engineering Department Process and Energy Date 2015-08-26 Abstract We perform Direct Numerical Simulations (DNS) of a turbulent channel flow with temperature dependent density and viscosity. The Navier-Stokes equations are solved using their low Mach number formulation. In the simulations performed, the fluid is internally heated and the temperature at the walls is fixed. The friction Reynolds number based on half channel height and wall friction velocity is Re? = 395. The modulation of turbulence, which is caused by the density and viscosity gradients, is characterized using the semi-local scaling of Huang et al. [1995, JFM]. To reference this document use: http://resolver.tudelft.nl/uuid:2429695d-6c8f-47eb-b90f-9c1a25c5455d Source 15th European Turbulence Conference 2015 (ETC15), August 25-28th, 2015, Delft, The Netherlands Part of collection Institutional Repository Document type conference paper Rights (c) 2015 the Authors Files PDF 503.pdf 2.49 MB Close viewer /islandora/object/uuid:2429695d-6c8f-47eb-b90f-9c1a25c5455d/datastream/OBJ/view