id author title date pages extension mime words sentence flesch summary cache txt 9w032229p1s Qin Yang Computational Study of Sound Generation by Surface Roughness in Turbulent Boundary Layers 2012 .txt text/plain 336 16 38 Large scale turbulent structures in the boundary layer have a relatively low influence on roughness dipoles, except for the first row of elements. Correlations and coherence between roughness dipoles and surface pressure fluctuations are analyzed, which reveals the importance of the impingement of upstream turbulence and surrounding vortical structures to dipole sound radiation, especially in the streamwise direction. cache/9w032229p1s.txt txt/9w032229p1s.txt