A Selection of Test Cases for the Validation of Large-Eddy Simulations of Turbulent Flows (Quelques Cas D'essai Pour la Validation de la Simulation Des Gros Tourbillons Dans Les Ecoulements Turbulents).

A Selection of Test Cases for the Validation of Large-Eddy Simulations of Turbulent Flows (Quelques Cas D'essai Pour la Validation de la Simulation Des Gros Tourbillons Dans Les Ecoulements Turbulents).
Author: Advisory group for aerospace research and development neuilly-sur-seine (France)
Publisher:
Total Pages: 212
Release: 1998
Genre:
ISBN:

The results of the AGARD FDP Working Group 21 on A Selection of Test Cases for the Validation of Large Eddy Simulations of Turbulent Flows are presented in this report. The data contained in the report consist of building-block experiments documented in a s much detail as possible. They are useful for the validation of Reynolds Averaged modeling and for the preliminary evaluation of experiments or turbulence theories. They include both laboratory experiments and direct numerical simulations. The introductory chapters are complemented by data sheets which describe in detail each data set, the experimental or numerical procedures, the expected errors, and the initial and boundary conditions. The data are given in machine-readable form in the CD-ROM that accompanies the report.

Large-Eddy Simulation and Modelling of Turbulent Compressible Channel Flows with and Without Pressure Gradient Distortion

Large-Eddy Simulation and Modelling of Turbulent Compressible Channel Flows with and Without Pressure Gradient Distortion
Author: Margareta Petrovan Boiarciuc
Publisher:
Total Pages: 156
Release: 2008
Genre:
ISBN:

Des simulations numériques des grandes échelles d'écoulements turbulents de canaux plans ont été réalisées dans ce travail de thèse. Les cas d'étude considérés sont : le canal compressible développé, le canal compressible se développant spatialement et le canal compressible avec distorsion par effet de gradient de pression adverse. Un soin particulier a été apporté à l'implémentation des conditions aux limites, d'entrée et de sortie, en utilisant la méthode des caractéristiques. Nous avons effectué une extension compressible d'un modèle de décollement artificiel de l'écoulement. Des relations de type Analogie Forte de Reynolds ont été modifiées pour l'écoulement de canal plan à parois isothermes. En prenant en compte une double correction masse volumique/viscosité, nous améliorons la transformation de van Driest qui permet de comparer les couches limites turbulentes compressibles aux lois classiques incompressibles. Nous proposons des lois de paroi pour la vitesse et la température totale en fonction du frottement, du flux de chaleur à la paroi et du gradient de pression adverse dans le canal.

Large Eddy Simulation for Incompressible Flows

Large Eddy Simulation for Incompressible Flows
Author: P. Sagaut
Publisher: Springer Science & Business Media
Total Pages: 600
Release: 2006
Genre: Computers
ISBN: 9783540263449

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."

Application of Direct and Large Eddy Simulation to Transition and Turbulence (L'Application de la Simulation Directe Et de la Simulation Des Gros Tourbillons a la Transition Et a la Turbulence) (Conference Proceedings on Fluid Dynamics Held at Chania, Crete Greece in April 1994).

Application of Direct and Large Eddy Simulation to Transition and Turbulence (L'Application de la Simulation Directe Et de la Simulation Des Gros Tourbillons a la Transition Et a la Turbulence) (Conference Proceedings on Fluid Dynamics Held at Chania, Crete Greece in April 1994).
Author:
Publisher:
Total Pages: 400
Release: 1994
Genre:
ISBN:

The papers prepared for the AGARD Fluid Dynamics Panel (FDP) Symposium on Application of Direct and Large Eddy Simulation to Transition and Turbulence", which was held 18-21 April 1994 in Chania, Crete, Greece are contained in this report. In addition, a Technical Evaluator's Report aimed at assessing the success of the Symposium in meeting its objectives, and an edited transcript of the General Discussion held at the end of the meeting are also included. During the past two decades significant progress has been made in the numerical simulation of turbulent flows. Vast improvements in speed and memory size of modern supercomputers, and recent progress in simulation algorithms and parallel computation have put us on the threshold of being able to simulate flows in configurations of engineering interest. The purpose of this Symposium is to disseminate the accumulated experience in this fast moving field which can be expected to play a vital role in future aeronautical developments.

Large Eddy Simulation for Incompressible Flows

Large Eddy Simulation for Incompressible Flows
Author: Pierre Sagaut
Publisher: Springer Verlag
Total Pages: 426
Release: 2002
Genre: Mathematics
ISBN: 9783540437536

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."