Titlebook: Numerical Flow Simulation I; CNRS-DFG Collaborati Ernst Heinrich Hirschel Book 1998 Springer Fachmedien Wiesbaden 1998 3D.Large Eddy Simula

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Numerical Modeling of Gas Flows in the Transition between Rarefied and Continuum RegimesIn particular, we consider the steady state, one-dimensional Boltzmann equation with one additional internal energy and different relaxation times. Moreover, we present a new approach to define coupling procedures for the Boltzmann equation and Navier-Stokes equations based on the 14-moments expansi

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Numerical Techniques for Multi-Scale Weakly Compressible Reactive Flowsut 1/10 mm and vortical flow structures of about 1–10 cm, while acoustic wave lengths are tens of centimeters to several meters..Here we describe the current state of development of numerical techniques allowing us to overcome these scaling discrepancies. These include a multi-scale grid representat

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故意

Numerical simulation of turbulent high speed flowscation of a Probabilistic Eulerian-Lagrangian Model (PEuL) to the non-premixed gaseous hydrogen/oxygen flame in a supersonic flow. A second part is devoted to the subsonic mixing and atomization of a liquid oxygen stream into a hydrogen one. The common part of these works is the development of physi

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Adaptively Refined Cartesian Grid Generation and Euler Flow Solutions for Arbitrary Geometries directly from the octree-data structure. The second flow solver is a modified unstructured solver of Jameson type. The parameters of the adaptation criterion are calculated for every cell, thus cells are identified for adaptive refinement or coarsening.

出血

Numerical Simulation of Combustion in Partially Premixed Turbulent Flowsbe separated from the flow calculation, so that the flow solver needs not resolve any chemical scales. To account for the combustion controlling mechanisms, mixing and flame propagation, transport equations for two scalars, the mixture fraction . and the level set function ., are introduced. These q

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Numerical Techniques for Multi-Scale Weakly Compressible Reactive Flowsctly assess the influence of Lewis number. Improved insight is gained by a more expensive numerical approach which resolves the flame structure. These computations correctly capture the influence of Lewis number..We conclude that a flame front tracking approach must resort to modified jump condition

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Computation of Vortex-Shedding Flows Past a Square Cylinder Employing LES and RANSthis latter quantity has emphasized the effective role of turbulence anisotropy in rendering the effects of shedding mechanisms. The integral parameters were determined with much better agreement with measurements than the averaged quantities. The essential finding is that the explicit algebraic str

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W. Borchers,M. Y. Forestier,S. Kr?utle,R. Pasquetti,R. Peyret,R. Rautmann,N. Ro?,C. Sabbah