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Numerical Prediction of the Hypersonic Boundary-Layer Over a Row of Microcavities

Theofilis, Vassilios

2002

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  • Título:
    Numerical Prediction of the Hypersonic Boundary-Layer Over a Row of Microcavities
  • Autor: Theofilis, Vassilios
  • Assuntos: BOUNDARIES ; BOUNDARY LAYER ; FLOW FIELDS ; Fluid Mechanics ; FOREIGN REPORTS ; GERMANY ; HYPERSONIC FLOW ; MATHEMATICAL PREDICTION ; METHODOLOGY ; MICROCAVITIES ; NUMERICAL ANALYSIS ; PARAMETERS ; PRESSURE ; PROBLEM SOLVING ; Statistics and Probability ; THEORY
  • Notas: DTIC
  • Descrição: This report results from tasking Nu-Modeling, Inc. as follows: the contractor will perform detailed numerical predictions of the flowfield in the neighborhood of the microcavities that are embedded in wall-coatings. The key deliverable of the proposed work will be the ability to put forward an improved integral condition to replace what is used in the current theoretical approach. This will be determined numerically at each of the parameters of the problem. The numerical effort required for the solution of the problem at a single value of each of the parameters involved limits to subset of the (M, Re, m, d, d/D, d/s) parameter space that can be investigated within the available year. It is intended to approximate existing analytic results of Fedorov first, at a single set of parameters, by imposing his pressure boundary condition at the lips of the microcavities (i.e. taking D=0. The effect of nonzero values of this parameter will then be examined, keeping all other parameters in the problem constant. Subsequently, the effect of d, and 5 will be investigated, at constant D and 2(d+s). In all D1 0 cases to be studied, integral boundary conditions will be provided to the parties involved in the project. Progress of the proposed research will be monitored by means of one intermediate and one final report. The original document contains color images.
  • Data de criação/publicação: 2002
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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