Numerical Prediction of Ship Hydrodynamic Performances using Explicit Algebraic Reynolds Stress Turbulence Model
نویسندگان
چکیده
منابع مشابه
Fully-Explicit and Self-Consistent Algebraic Reynolds Stress Model
A fully-explicit, self-consistent algebraic expression for the Reynolds stress, which is the exact solution to the Reynolds stress transport equation in the `weak equilibrium' limit for twodimensional mean ows for all linear and some quasi-linear pressure-strain models, is derived. Current explicit algebraic Reynolds stress models derived by employing the `weak equilibrium' assumption treat the...
متن کاملNumerical Study of Unsteady Effects in Combustion Systems by Means of Coupled Explicit Algebraic Reynolds Stress Model (earsm) and Explicit Algebraic Scalar Flux Model (easfm)
The swirl flow plays a central role in combustion systems. It is important to capture all phenomena associated with it. In particular, lean partially premixed combustion in gas turbine combustion chamber is often associated with hydrodynamic instabilities, known as processing vortex core (PVC). Therefore an unconfined swirl flow with a precessing vortex core is being studied in presented work b...
متن کاملمدلسازی عددی جریانهای لایهبندی شدهی غیرهمسان با استفاده از مدل آشفتگی صریح جبری تنش رینولدز
Flows of natural hydro-environments are usually turbulent and mostly stratified, like the flows in lakes, reservoirs, estuaries and atmosphere to name a few. In stratified flows due to the buoyancy forces, the turbulent stresses are usually non-isotropic. Therefore the accuracy of the numerical simulations for such flows is highly dependent on the turbulence model and the implementation of non-...
متن کاملNumerical Modeling of Saline Gravity Currents Using EARSM and Buoyant k- Turbulence Closures
Gravity currents are very common in nature and may appear in rivers, lakes, oceans, and the atmosphere. They are produced by the buoyant forces interacting between fluids of different densities and may introduce sediments and pollutants into water bodies. In this study, the hydrodynamics and propagation of gravity currents are investigated using WISE (Width Integrated Stratified Environments), ...
متن کاملA Galilean Invariant Explicit Algebraic Reynolds Stress Model For Curved Flows
A Galilean invariant weak-equilibrium hypothesis that is sensitive to streamline curvature is proposed. The hypothesis leads to an algebraic Reynolds stress model for curved ows that is fully explicit and self-consistent. The model is tested in curved homogeneous shear ow: the agreement is excellent with Reynolds stress closure model and adequate with available experimental data. This research ...
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: Journal of the Society of Naval Architects of Korea
سال: 2014
ISSN: 1225-1143
DOI: 10.3744/snak.2014.51.1.67