Ninth International Symposium on Turbulence and Shear Flow Phenomena
DOI: 10.1615/TSFP9
Amplitude Modulation of Pressure in Turbulent Boundary Layer
pages 267-269
DOI: 10.1615/TSFP9.450
要約
The interaction between large and small scale motions from the point of pressure fluctuation is studied. Using the small pressure probe, both the static pressure and wall pressure fluctuations were measured inside the zero-pressure gradient boundary layer at relatively high Reynolds numbers. How the large scales in outside affect the small scales near wall is analyzed by means of statistical method. High amplitude positive and negative pressure fluctuations are also analyzed which associate with coherent motions inside the boundary layer. Another interesting aspect is the amplitude modulations of pressure and this topic is reported in this paper.