用于流动和噪声建模的涡流分辨计算方法的进展

Advances in eddy-resolving computational approaches for flow and noise modellingSergey Karabasov, Queen Mary University of LondonAcknowledgements: Annabel Markesteijn, Hussain Abid, Igor Solntsev, Vasily GrayzevOutline of the talk•Eddy-resolving simulations for flow and noiseemissionsmodelling of rotating machinery using state-of-the art commercial tools: advances and challenges for turbulence interaction problems, 2 challenging use cases•What is dissipation and dispersion errors and why one should care about them in scale resolving flow modelling?•CABARET, out favourite low-dissipative and low- dispersive method: some features and flow solution process•Example 1: installed jet flow and noise modelling•Example 2: installed propeller noise, from validation to design optimisation2•Motivatedbythesearchfortransformativeturbofanenginetechnologieswhichleverageamorecompactengine-airframeintegrationtoreducedrag(hence,fuelburnandemissions),whichposesnoiseproblemsduetotightlycoupledsystems•Sing