{ "id": "2208.11222", "version": "v1", "published": "2022-08-23T22:43:31.000Z", "updated": "2022-08-23T22:43:31.000Z", "title": "Flow past an inclined spheroid in homogeneous and stratified environments", "authors": [ "S. Nidhan", "J. L. Ortiz-Tarin", "S. Sarkar" ], "comment": "4 figures, 1 table, presented at TSFP 12", "categories": [ "physics.flu-dyn" ], "abstract": "Large-eddy simulations (LES) are performed to study the flow past a 6:1 prolate spheroid placed at an angle of incidence of $\\alpha = 10^{\\circ}$. The diameter-based Reynolds number ($Re = U_{\\infty}D/\\nu$) is set to a value of $5\\times10^{3}$ and four values of diameter-based Froude numbers ($Fr = U_\\infty/ND$) are analyzed: $Fr = \\infty, 6, 1.9,$ and $1$. Visualizations of coefficient of pressure ($C_p$) and friction ($C_f$) contours reveal asymmetry in the $Fr = \\infty$ and $6$ flows while, at $Fr = 1$ and $Fr = 1.9$, the flow over body does not have any visible asymmetry. This finding is further corroborated through the analysis of force coefficients on the body. The changes in the pressure coefficients ($C_p$), friction coefficients ($C_f$), and drag coefficients ($C_d$) with the Froude number are described in detail for $\\alpha = 10^{\\circ}$. We also present the analyses of forces on the body at $\\alpha = 0^{\\circ}$ angle of incidence for comparison with the $\\alpha = 10^{\\circ}$ cases.", "revisions": [ { "version": "v1", "updated": "2022-08-23T22:43:31.000Z" } ], "analyses": { "keywords": [ "flow past", "inclined spheroid", "stratified environments", "contours reveal asymmetry", "pressure coefficients" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }