搜索结果: 1-8 共查到“turbulence models”相关记录8条 . 查询时间(0.059 秒)
ON THE DEVELOPMENT OF SELFADAPTING (RAS/LES) TURBULENCE MODELS FOR FLUID SIMULATION AT ANY MESH RESOLUTION
SELF ADAPTING TURBULENCE MODELS FLUID SIMULATION MESH RESOLUTION
2014/10/23
Solving the Navier-Stokes equations using direct numerical simulation (DNS) is computationally impractical, especially at high Reynolds numbers. Recent technological advances in supercomputing have pa...
Magnetic moment non-conservation in magnetohydrodynamic turbulence models
Magnetic moment non-conservation magnetohydrodynamic turbulence models Plasma Physics
2012/4/19
The fundamental assumptions of the adiabatic theory do not apply in presence of sharp field gradients as well as in presence of well developed magnetohydrodynamic turbulence. For this reason in such c...
湍流模型在双吸离心泵数值模拟中的适用性分析（Applicability of Turbulence Models in Numerical Simulation of Double Suction Centrifugal Pump）
离心泵 湍流模型 CFD 数值模拟
2010/12/28
以双吸离心泵为研究对象，在Fluent软件中采用标准k-ε模型、RNG k-ε模型、Realizable k-ε模型和雷诺应力模型4种湍流模型在相同网格条件下进行三维、稳态数值模拟，计算其在不同工况下的扬程及水力效率；然后以RNG k-ε模型计算结果作为初值，用大涡模拟方法进行三维、非稳态数值模拟，计算叶轮旋转一周的平均扬程及平均水力效率，与真机数据进行对比分析。计算结果表明：Fluent软件在...
The question of which length scale equation to use in models of turbulence has long been controversial and several approaches have been suggested and used in the past. In this paper, we demonstrate th...
Numerical study of hydraulic jumps on corrugated beds using turbulence models
Hydraulic jump corrugated bed Navier-Stokes equations volume of fluid (VOF) k-ε turbulence models
2009/9/30
Hydraulic jumps have been used for dissipation of kinetic energy downstream of hydraulic structures,such as spillways, chutes, and gates. It was found that if jumps were made to occur on corrugated be...
An Efficacy Evaluation of Ship Stern Flow Computations Applying Low-Reynolds Number κ-ε Turbulence Models
CFD Low Reynolds Number κ-ε Turbulence Model Stern Flow Field Shih-Lumley Model Efficacy Evaluation
2009/5/12
An efficacy of some κ-ε turbulence models applying to solve turbulent flow field around a ship model was evaluated.
Five κ-ε turbulence models were selected from a viewpoint of low Reynolds number ef...
Investigation on Effective Turbulence Models for Predicting Tanker Stern Flows
Predicting Tanker Stern Flows Investigation
2009/3/27
This paper concerns investigation on effective turbulence models for predicting tanker stern flows.
Simulating the Wave-Enhanced Layer under Breaking Surface Waves with Two-Equation Turbulence Models
Wave-Enhanced Layer Breaking Surface Waves Two-Equation Turbulence Models
2008/7/25
The purpose of this paper is to modify two-equation turbulence models such that they are capable of simulating dynamics in the wave-enhanced layer near the surface. A balance of diffusion of turbulent...