Numerical simulation of a turbulent flow in a rotating channels of rectangular cut
Jazyk: | ruština |
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Rok vydání: | 2021 |
Předmět: | |
DOI: | 10.18720/spbpu/3/2021/vr/vr21-4989 |
Popis: | Рданной ÑабоÑе пÑоведено ÑиÑленное иÑÑледование ÑÑÑбÑленÑного ÑеÑÐµÐ½Ð¸Ñ Ð²Ð¾ вÑаÑаÑÑемÑÑ ÐºÐ°Ð½Ð°Ð»Ðµ пÑÑмоÑголÑного ÑеÑÐµÐ½Ð¸Ñ Ñ Ð¿Ð¾Ð²Ð¾ÑоÑом на 90°. ÐÑполнен ÑиÑленнÑй ÑкÑпеÑÐ¸Ð¼ÐµÐ½Ñ Ð¼ÐµÑодом WMLES, коÑоÑÑй бÑл веÑиÑиÑиÑован на ÑÑÑановивÑемÑÑ ÑеÑении в пÑÑмоÑголÑном канале. ÐÑоведено иÑÑледование ÑоÑноÑÑи RANS Ð¿Ð¾Ð´Ñ Ð¾Ð´Ð° Ñ Ð¸ÑполÑзованием ÑазлиÑнÑÑ Ð¿Ð¾Ð»ÑÑмпиÑиÑеÑÐºÐ¸Ñ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ ÑÑÑбÑленÑноÑÑи пÑÑем ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ñ Ñ ÑезÑлÑÑаÑами ÑиÑленного ÑкÑпеÑименÑа как пÑи налиÑии вÑаÑениÑ, Ñак и пÑи его оÑÑÑÑÑÑвии. ÐÑÑледовано влиÑние вÑаÑÐµÐ½Ð¸Ñ Ð½Ð° ÑÑÑÑкÑÑÑÑ ÑеÑÐµÐ½Ð¸Ñ Ð¸ пÑоведена оÑенка ÑоÑноÑÑи RANS-моделей ÑÑÑбÑленÑноÑÑи. In this work numerical investigation of a turbulent flow in a rotating 90° bend of rectangular cut is pursued. Numerical experiment, which was verified on a developed flow in a rectangular channel, is made with the help of WMLES. Accuracy investigation of RANS-modelling using different semiempirical models is provided in the way of comparing with the results of numerical experiment with rotation presence as well as its lack. Rotation influence on a flow structure is explored and RANS turbulence models accuracy is estimated. |
Databáze: | OpenAIRE |
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