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Large eddy simulations and direct numerical simulations of high speed turbulent reacting flows (Document No: 19930012473)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Frankel, S. H. Sabini, G. Madnia, C. K. Adumitroaie, V. Givi, P. |
| Copyright Year | 1993 |
| Description | The primary objective of this research is to extend current capabilities of Large Eddy Simulations (LES) and Direct Numerical Simulations (DNS) for the computational analyses of high speed reacting flows. Our efforts in the first two years of this research have been concentrated on a priori investigations of single-point Probability Density Function (PDF) methods for providing subgrid closures in reacting turbulent flows. In the efforts initiated in the third year, our primary focus has been on performing actual LES by means of PDF methods. The approach is based on assumed PDF methods and we have performed extensive analysis of turbulent reacting flows by means of LES. This includes simulations of both three-dimensional (3D) isotropic compressible flows and two-dimensional reacting planar mixing layers. In addition to these LES analyses, some work is in progress to assess the extent of validity of our assumed PDF methods. This assessment is done by making detailed companions with recent laboratory data in predicting the rate of reactant conversion in parallel reacting shear flows. This report provides a summary of our achievements for the first six months of the third year of this program. |
| File Size | 5028506 |
| Page Count | 120 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19930012473 |
| Archival Resource Key | ark:/13960/t8kd6tf1x |
| Language | English |
| Publisher Date | 1993-01-31 |
| Access Restriction | Open |
| Subject Keyword | Fluid Mechanics And Heat Transfer Turbulent Flow Three Dimensional Flow Computational Fluid Dynamics Reacting Flow Vortices Shear Flow High Speed Parallel Flow Compressible Flow Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
