Results 11 to 20 of about 375 (167)

A generalized formulation of the dynamic Smagorinsky model

Meteorologische Zeitschrift, 2017
A generalized formulation of the Dynamic Smagorinsky Model (DSM) is proposed as a versatile turbulent momentum diffusion scheme for Large-Eddy Simulations.
Urs Schaefer-Rolffs
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Application of Dynamic Smagorinsky Model to the Finite Difference Lattice Boltzmann Method

Journal of Fluid Science and Technology, 2008
Three-dimensional turbulent flows past a square cylinder are simulated by the Finite Difference Lattice Boltzmann Method (FDLBM). We carry out the simulation in two approaches.
Masayuki HIRAISHI, Michihisa TSUTAHARA
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A comparison of different solutions for the Dynamic Smagorinsky Model applied in a GCM

Meteorologische Zeitschrift, 2018
A discussion of different approaches and solutions of the basic tensor equation within the Dynamic Smagorinsky Model (DSM) suitable for General Circulation Models (GCM) is presented.
Urs Schaefer-Rolffs
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Field Experimental Study of Dynamic Smagorinsky Models in the Atmospheric Surface Layer [PDF]

Journal of the Atmospheric Sciences, 2004
An analysis of dynamic Smagorinsky models is performed based on the Horizontal Array Turbulence Study (HATS) dataset. In the experiment, two vertically separated horizontal arrays of 14 three-dimensional sonic anemometers were placed in the atmospheric surface layer.
Kleissl, J., Parlange, M. B., Meneveau, C.   +2 more
openaire   +2 more sources

Comparative Study of Standard Smagorinsky Model and Dynamic Smagorinsky Model in Large Eddy Simulation of Turbulent Channel Flow

Journal of Scientific Research, 2020
This paper presents results of comparative study of large eddy simulation (LES) that is applied to a plane turbulent channel flow. The LES is performed by using a finite difference method of second order accuracy in space and a low-storage explicit Runge-Kutta method with third order accuracy in time.
M. A. Uddin, M. A. Hoque, M. S. I. Mallik   +2 more
openaire   +2 more sources

A Dynamic Mixed Model for General Circulation Models

Meteorologische Zeitschrift, 2023
An extension of the dynamic Smgarorinsky model (DSM) is presented. In the so-called dynamic mixed model (DMM), the Leonard stress (i.e., the resolved part of the Reynolds stress) is no longer parameterized in the test filter range by the Smagorinsky ...
Urs Schaefer-Rolffs
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Study of unsteady cavitation on NACA66 hydrofoil using dynamic cubic nonlinear subgrid-scale model

Advances in Mechanical Engineering, 2015
In this article, we describe the use of a new dynamic cubic nonlinear model, a new nonlinear subgrid-scale model, for simulating the cavitating flow around an NACA66 series hydrofoil. For comparison, the dynamic Smagorinsky model is also used.
Xianbei Huang, Wei Yang, Zhuqing Liu, Yaojun Li   +3 more
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Validation study for Large-Eddy Simulation of Forest Flow [PDF]

E3S Web of Conferences, 2020
The publication presents Large-Eddy Simulation (LES) of flow over a reduced-scale wind tunnel model of a forest canopy. The final aim of the study is to determine factors responsible for damage in forests by strong winds.
Pitchurov George, Gromke Christof, Denev Jordan A., Cesar Cunha Galeazzo Flavio   +3 more
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Adding complex terrain and stable atmospheric condition capability to the OpenFOAM-based flow solver of the simulator for on/offshore wind farm applications (SOWFA)

ITM Web of Conferences, 2014
The National Renewable Energy Laboratory's Simulator for On/Offshore Wind Farm Applications contains an OpenFOAM-based flow solver for performing large-eddy simulation of flow through wind plants.
Churchfield Matthew J., Lee Sang, Moriarty Patrick J.   +2 more
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Numerical investigation of turbulent lid-driven flow using weakly compressible smoothed particle hydrodynamics CFD code with standard and dynamic LES models

Nuclear Engineering and Technology, 2023
Smoothed Particle Hydrodynamics (SPH) is a Lagrangian computational fluid dynamics method that has been widely used in the analysis of physical phenomena characterized by large deformation or multi-phase flow analysis, including free surface. Despite the
Tae Soo Choi, Eung Soo Kim
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