Supercritical Mixing of Flows with High Density Gradient
Huhn, C. and Koschel, W. (2003) Supercritical Mixing of Flows with High Density Gradient. In: Numerical Flow Simulation III Notes on Numerical Fluid Mechanics and Multidisciplinary Design, Volume 82. Springer, Berlin. ISBN 3-540-44130-1.
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To analyze the supercritical mixing behavior of a two-phase flow a coaxial flow of two gases with variable density gradient is investigated. The main item is the comparison of the core length development by varying the density ratio of the inner heavy gas jet to the annular light gas jet from 30 to 45. Thereby the velocity ratio between the slow heavy jet and the low density high speed flow is kept constant. The numerical simulation is carried out with a 2D Navier Stokes solver for compressible multi-species flows on an unstructured triangular grid. The mixing process, which is mainly determined by turbulent structures in the flow field is described with a k - e model. The transport equations are integrated in time with a fifth order Runge-Kutta algorithm.
|Document Type:||Contribution to a Collection|
|Title:||Supercritical Mixing of Flows with High Density Gradient|
|Journal or Publication Title:||Numerical Flow Simulation III|
|In ISI Web of Science:||No|
|Series Name:||Notes on Numerical Fluid Mechanics and Multidisciplinary Design|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W RP - Raumtransport|
|DLR - Research area:||Space|
|DLR - Program:||W RP - Raumtransport|
|DLR - Research theme (Project):||E -- no assignement|
|Institutes and Institutions:||Institute of Space Propulsion|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||16 Sep 2005|
|Last Modified:||06 Jan 2010 14:02|
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