Analysis of flow over cylinders using the AIRONUM softwareReport as inadecuate




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1 TROPICS - Program transformations for scientific computing CRISAM - Inria Sophia Antipolis - Méditerranée

Abstract : Flow over cylinders has played an important role in the development of CFD methods and turbulence models in the past 50 years and will continue to play an important role in the future. Due to its geometry facilitating experiments and numerical studies, cylinders flows are among the simplest test case for studying the effect of Reynolds number on buff body flows involving recirculation regions. For these reasons, the AIRONUM CFD software has added specific features to simplify the analysis for users; automatically computing the following meanflow values: drag and lift coefficients, base pressure coefficient, flow separation angle, L-D of the recirculation zone, the max-min U-velocity, and the surface pressure coefficient, while the simulation is executing. Meanflow ParaView graphics files are also automatically at the completion of the simulation. Also tools to analyse the time series values of drag, lift, separation angles, base pressure coefficients, L-D are included in the software. These analysis features are found in the AIRONUM software version 4.1 and later.

Keywords : Flow over cylinders mean flow characteristics low Mach unstructured meshes VMS-LES WALE turbulence models





Author: Stephen Wornom -

Source: https://hal.archives-ouvertes.fr/



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