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dc.contributor.author | Isaev S. | |
dc.contributor.author | Baranov P. | |
dc.contributor.author | Popov I. | |
dc.contributor.author | Sudakov A. | |
dc.contributor.author | Usachov A. | |
dc.contributor.author | Guvernyuk S. | |
dc.contributor.author | Sinyavin A. | |
dc.contributor.author | Chylunin A. | |
dc.contributor.author | Mazo A. | |
dc.contributor.author | Kalinin E. | |
dc.date.accessioned | 2018-04-05T07:09:13Z | |
dc.date.available | 2018-04-05T07:09:13Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 0094-5765 | |
dc.identifier.uri | http://dspace.kpfu.ru/xmlui/handle/net/129586 | |
dc.description.abstract | © 2017. Two-dimensional flow around semi-circular cylinder at zero angle of attack and at Re = 50000 during the self-oscillatory regime has been extensively studied within the URANS method with the use of different-structure grids (multiblock, structured overlapping, unstructured composite), the SST turbulence model and its versions (1993) and (2003) considering the streamline curvature influence modified within the Rodi-Leschziner-Isaev approach and numerical different-approximation methods realized in two codes (VP2/3, Fluent). Experiments have been made on flow around a semi-circular cylinder in the wind tunnel of the Lomonosov Moscow State University, Institute of Mechanics to obtain data for verification of numerical predictions. The double-mode character of a periodic time history of a drag force caused by a periodically forming and disappearing jet flap and acting upon a body is explained. With increasing compressibility at a Mach number ranging from 0 to 0.5, it is observed that periodic flow around the semi-circular cylinder is restructured, and the time history of the drag force acting upon it is described by a dependence close to a sinusoidal one. It is found that, as the Mach number is increased, pressure field distortions in the form of concentric cylindrical waves propagating from the semi-circular cylinder and the vortex street behind it grow over the infrasonic range. | |
dc.relation.ispartofseries | Acta Astronautica | |
dc.subject | Calculation | |
dc.subject | Compressibility | |
dc.subject | Experiment | |
dc.subject | Semi-circular cylinder | |
dc.subject | Turbulence | |
dc.title | Ensuring safe descend of reusable rocket stages - Numerical simulation and experiments on subsonic turbulent air flow around a semi-circular cylinder at zero angle of attack and moderate Reynolds number | |
dc.type | Article in Press | |
dc.collection | Публикации сотрудников КФУ | |
dc.source.id | SCOPUS00945765-2017-SID85032729046 |