Computational Methods and Experimental Measurements XIII by C. A. Brebbia, G. M. Carlomagno

By C. A. Brebbia, G. M. Carlomagno

Comprises papers awarded on the 13th foreign convention during this good validated sequence on Computational tools and Experimental Measurements (CMEM).These lawsuits overview cutting-edge advancements at the interactions among numerical tools and experimental measurements.

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A dynamic subgrid-scale model is employed in this work. The mean LES results compare favourably with the available experimental and DNS data. This paper addresses the characteristic shedding modes associated with the separated-reattached flows on the SSMO and the FFS and sheds light on the use of the wavelet transform (WT) in extracting the content of a time history of a (velocity and/or pressure) signal compared to the traditional Fourier transform (FT). The turbulence spectra for the geometries revealed amplified frequency modes both upstream and downstream of the separation edge with those associated with the SSMO showing more clearly compared to the FFS.

The comparison between test results and CFD simulation show good agreement, so the CFD results help the understanding and analysis of this complicated test event. Several pictures demonstrating the research results are shown below. Keywords: ignition, shock tube, HTPB, scramjet, finite volume. 2495/CMEM070031 26 Computational Methods and Experimental Measurements XIII 1 Introduction With the development of the space shuttle and solar system exploration, the hypersonic high technology in aviation will play an important role in the nextgeneration frontier [1].

3. Measurement procedure started with placing down the holder with thermocouples on the upper cast aluminium alloy strip surface as near as possible to the cast rolls, typically 100 mm from the rolls' outlet (point 0 in fig. 1). Thermocouples travelled together with cast strip without relative moving.

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