Investigation of turbulence models with compressibility corrections for hypersonic boundary flows
نویسندگان
چکیده
منابع مشابه
comparative investigation in a turbine blade passage flows with several different turbulence models
in the present work a two dimensional numerical investigation of steam flows in a turbine blade passage is performed. a finite volume approach has been used and the pressure–velocity coupling is resolved using the simple algorithm. the purpose of this paper is to find that one of the used turbulent models is better for this kind of studies. a structured mesh arrangement with boundary layer mesh...
متن کاملStudy of Emission Turbulence–Radiation Interaction in Hypersonic Boundary Layers
B = Einstein absorption coefficient E = total energy, P ns s s es 12 uiui , J=m g = electronic state degeneracy H = shape factor, = , dimensionless h = specific enthalpy, J=kg h = Planck’s constant h = enthalpy of formation, J=kg I = radiative intensity,W=cm-sr J = diffusive mass flux, kg=m s Le = Lewis number, dimensionless M = Mach number, dimensionless n = number density, m 3 p = pressure, P...
متن کاملAssessment 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...
متن کاملTurbulence models in pulsating flows
Abstract This paper compares the performance of four low-Reynolds-number models for the unsteady Reynolds-averaged Navier-Stokes equations applied to the flow in a channel driven by a pressure gradient oscillating around a non-zero mean. The models considered are the one-equation Spalart-Allmaras model, the k − ε model with the wall functions of Lam and Bremhorst, the k−ω model of Saffman and W...
متن کاملBoundary flows in minimal models
We discuss in this paper the behaviour of minimal models of conformal theory perturbed by the operator Φ 13 at the boundary. Using the RSOS restriction of the sine-Gordon model, adapted to the boundary problem, a series of boundary flows between different set of conformally invariant boundary conditions are described. Generalizing the " staircase " phenomenon discovered by Al. Zamolodchikov, we...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Advances in Mechanical Engineering
سال: 2015
ISSN: 1687-8140,1687-8140
DOI: 10.1177/1687814015620319