Finite-rate chemistry effects in turbulent hypersonic boundary layers: A direct numerical simulation study

A numerical method to simulate hypersonic boundary layers with finite-rate chemistry

Direct numerical simulation of hypersonic turbulent boundary layers. Part 4. Effect of high enthalpy

L. Duan and M. P. Martín Journal of Fluid Mechanics / Volume 684 / October 2011, pp 25 ­ 59 DOI: 10.1017/jfm.2011.252, Published online: 06 September 2011 Link to this article: http://journals.cambridge.org/abstract_S0022112011002527 How to cite this article: L. Duan and M. P. Martín (2011). Direct numerical simulation of hypersonic turbulent boundary layers. Part 4. Effect of high enthalpy. Jo...

Direct numerical simulation of hypersonic turbulent boundary layers. Part 1. Initialization and comparison with experiments

A systematic procedure for initializing supersonic and hypersonic turbulent boundary layers at controlled Mach number and Reynolds number conditions is described. The initialization is done by locally transforming a true direct numerical simulation flow field, and results in a nearly realistic initial magnitude of turbulent fluctuations, turbulence structure and energy distribution. The time sc...

Assessment of Turbulence–Chemistry Interaction in Hypersonic Turbulent Boundary Layers

Cp = heat capacity at constant pressure, J= K kg Cv = heat capacity at constant volume, J= K kg c = concentration, mol=m E = total energy, J=m H = shape factor, = , dimensionless h = specific enthalpy, J=kg h = heat of formation, J=kg J = diffusive mass flux, kg=m s Keq = equilibrium constant k = reaction rate coefficient Le = Lewis number, dimensionless M = Mach number, dimensionless ns = tota...

Direct numerical simulation of separating turbulent boundary layers

Direct numerical simulation of two turbulent boundary layer flows has been performed. The boundary layers are both subject to a strong adverse pressure gradient. In one case a separation bubble is created while in the other the boundary layer is everywhere attached. The data from the simulations are used to investigate scaling laws near the wall, a crucial concept in turbulence models. Theoreti...