Hosted
Sessions 6：Technological Sciences
Guowei He
Character introduction
Dr. Guowei is an academician of Chinese Academy of Science and a professor of Institute of Mechanics, Chinese Academy of Science. He is the fellow of America Physical Society (APS) and a member of editorial committee of the APS journal “Physical Review Fluids”. His research interests includes: turbulence statistical theory and computational modeling, large eddy simulation of turbulence-generated noise and supercomputing. He is the author or co-author of more than 90 refereed journal papers and numerous conference papers and presentations.
Topic: Predict Turbulence-generating Noise for Quiet Environments
Abstract The increasing requirement for quiet environments raises the needs to control turbulence-generated noise, which are typically resulted from new-energy automobiles, high-speed trains, wind turbines, civil airplanes and underwater vehicles. Those needs largely enhance the investigation of turbulence-generated noise. It presents two challenges to our prediction: the first is that turbulence-generated noise exhibits the coupling of spatial and temporal scales. However, the previous study focuses on spatial scales and there exist very limited results on temporal scales. The second is that turbulent-generated noise often occurs with complex geometric boundaries. Resolving the noise generated by flows near complex geometric boundaries is very difficult even using supercomputers. In this talk, I will introduce the recent development on space-time correlation modeling for understanding turbulence-generated noise. Through it, I will present time-accurate large eddy simulation for predicting turbulence-generated noise. Some examples of interests are briefly discusses.
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