A reynolds-stress model for near-wall regions.
نویسندگان
چکیده
منابع مشابه
A Dynamic Wall Model Constrained by External Reynolds Stress
A new wall model for LES is proposed. Unlike conventional zonal approaches, given Reynolds stresses are not imposed as the solution, but used as constraints on the SGS stress so that the given Reynolds stress closely matches the computed one only in the mean sense. Also, since LES in general outperforms RANS even at coarse resolution except very near the wall, RANS constraints are limited to th...
متن کاملOptimal LES and a New Near-Wall Model for Application to High-Reynolds-Number Air Foils
One of the most promising techniques for the prediction of turbulent flows is Large Eddy Simulation (LES), in which the largest scales of turbulent fluid motion are simulated while the effect of the smaller unresolved scales are modeled. However, one of the major obstacles to the use of LES in technologically important turbulent flows, such as the flow over an airfoil, is the modeling of the ne...
متن کاملThree-sphere low-Reynolds-number swimmer near a wall.
We study the influence of a wall on the dynamics of a low-Reynolds-number three-sphere swimmer. A far swimmer whose arm makes an angle theta with the horizon experiences the wall presence as an angle-dependent quadrupole force proportional to (a/L)(2)(L/z)(2)cos theta, where a, L, and z are the radius of spheres, the arm length, and the swimmer distance to the wall, respectively. The wall-induc...
متن کاملA New Scalar Reynolds Stress Model For Non-Isothermal Wall Bounded Turbulent Flows
The present investigation concerns the development of advanced scalar turbulence modeling approaches and their application to the calculation of non-isothermal wall-bounded flow phenomena. A new scalar modeling technique based on scalar turbulent scales is proposed and implemented at a second-order modeling approach. Instead of the classical analogy concept between the mechanical and the scalar...
متن کاملReynolds-Stress Model for Eulerian multiphase
This paper presents a way of modelling turbulence in multiphase flows within the context of the Reynolds-Stress Model. The model has been implemented in the general-purpose unstructured finite volume code Fluent V6. Two multiphase turbulence approaches were considered: mixture and dispersed models. The mixture model solves the Reynolds-stress transport equations on the mixture level only. The d...
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: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
سال: 1985
ISSN: 0387-5016,1884-8346
DOI: 10.1299/kikaib.51.1631