A Parallel Finite Volume Algorithm for Large-eddy Simulation of Turbulent Flows PDF Download
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Author: Trong T. Bui
Publisher:
ISBN:
Category : Parallel computers
Languages : en
Pages : 28
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Book Description
Author: Trong T. Bui
Publisher:
ISBN:
Category : Parallel computers
Languages : en
Pages : 28
Get Book Here
Book Description
Author: Trong T. Bui
Publisher:
ISBN:
Category : Parallel computers
Languages : en
Pages : 20
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Book Description
Author: Trong T. Bui
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Todd Allen Simons
Publisher:
ISBN:
Category :
Languages : en
Pages : 280
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Book Description
Structured, unstructured, and zonal embedded grid finite volume formulations have been developed to solve the Favre filtered Navier-Stokes equations for performing large eddy simulation of turbulent flows. These compressible formulations were developed using a dual time stepping approach with low Mach number preconditioning. For the structured and zonal embedded grid formulations, time marching was done with either an explicit Runge-Kutta scheme or an implicit lower-upper symmetric-Gauss-Seidel scheme. For the unstructured formulation, time marching used either an explicit Runge-Kutta scheme or traditional Gauss-Seidel scheme. All codes were parallelized to reduce the overall time required for simulations. These schemes were second-order accurate in space and time. Validations were performed using laminar and turbulent incompressible benchmark flows.
Author: Luigi Carlo Berselli
Publisher: Springer Science & Business Media
ISBN: 9783540263166
Category : Computers
Languages : en
Pages : 378
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Book Description
The LES-method is rapidly developing in many practical applications in engineering The mathematical background is presented here for the first time in book form by one of the leaders in the field
Author: Lyle Douglas Dailey
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 506
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Book Description
The LES formulation provided excellent agreement with DNS and experimental results for simple turbulent flows (i.e. homogeneous, isotropic, decaying turbulence and smooth wall channel flows). For the constant heat flux channel flows, high heating tended to reduce the velocity fluctuations, while high cooling tended to promote the fluctuations. The mean and fluctuation velocity profiles collapsed towards the incompressible results when normalized by local properties, as opposed to wall values. The temperature fluctuation profiles were largely independent of the heating rate when normalized BV the wall-to-bulk temperature difference. Problems related to significant odd-even decoupling, grid distributions, and SGS modeling were identified for the rib-roughened channel.
Author: Robert deLancey Moser
Publisher:
ISBN:
Category : Navier-Stokes equations
Languages : en
Pages : 184
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Book Description
Author: P. Sagaut
Publisher: Springer Science & Business Media
ISBN: 9783540263449
Category : Computers
Languages : en
Pages : 600
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Book Description
First concise textbook on Large-Eddy Simulation, a very important method in scientific computing and engineering From the foreword to the third edition written by Charles Meneveau: "... this meticulously assembled and significantly enlarged description of the many aspects of LES will be a most welcome addition to the bookshelves of scientists and engineers in fluid mechanics, LES practitioners, and students of turbulence in general."
Author: Gregory Charles Burton
Publisher:
ISBN:
Category :
Languages : en
Pages : 568
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Book Description
Author: Narayanan Chidambaram
Publisher:
ISBN:
Category :
Languages : en
Pages : 196
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Book Description
Behavior of the different schemes was explained using a truncation error analysis. It was found that the fourth-order central difference scheme was not energy-preserving. Criteria for creating and testing new higher-order accurate schemes were suggested. Finally, the large eddy simulation was performed using the second-order central difference scheme with the momentum-interpolation correction. This scheme was found to give very good agreement with the experimental data. The performance of the dynamic model was much improved with this scheme. It was concluded that the second-order central difference in conjunction with the momentum-interpolation scheme was the most appropriate scheme from among the schemes tested.
