Pressure fluctuation in high-Reynolds-number turbulent boundary layer: results from experiments and DNS

We have developed a small pressure probe and measured both static pressure and wall pressure simultaneously in turbulent boundary layers up to Reynolds numbers based on the momentum thickness . The measurements were performed at large experimental facilities in Sweden, Australia, and Japan. We find that the measured pressure data are contaminated by the artificial background noise induced by test section and are also affected by the flow boundary conditions. By analyzing data from different wind tunnels acquired at the same Reynolds number, we evaluate the effect of background noises and boundary conditions on the pressure statistics. We also compare the experimental results with results of direct numerical simulations and discuss differences in boundary conditions between real and simulated wind tunnels.

[1]  Dan S. Henningson,et al.  Simulations of Spatially Evolving Turbulent Boundary Layers up to Reθ = 4300 , 2010 .

[2]  P. Moin,et al.  Direct numerical simulation of turbulence in a nominally zero-pressure-gradient flat-plate boundary layer , 2009, Journal of Fluid Mechanics.

[3]  Ivan Marusic,et al.  Evidence of the k(1)(-1) law in a high-Reynolds-number turbulent boundary layer , 2005 .

[4]  Hyung Jin Sung,et al.  Direct numerical simulation of a turbulent boundary layer up to Reθ = 2500 , 2011 .

[5]  P. Spalart.  Direct simulation of a turbulent boundary layer up to Rθ = 1410 , 1988, Journal of Fluid Mechanics.

[6]  N. K. Agarwal,et al.  A new technique for obtaining the turbulent pressure spectrum from the surface pressure spectrum , 1989 .

[7]  P. Moin,et al.  Direct numerical simulation of transition and turbulence in a spatially evolving boundary layer , 1991 .

[8]  P. Alfredsson,et al.  Pressure statistics and their scaling in high-Reynolds-number turbulent boundary layers , 2007, Journal of Fluid Mechanics.

[9]  Ivan Marusic,et al.  Evidence of the -1-law in a high Reynolds number turbulent boundary layer , 2007 .

[10]  A. Naguib,et al.  Extraction of turbulent wall-pressure time-series using an optimal filtering scheme , 1996 .

[11]  Hassan M. Nagib,et al.  Criteria for assessing experiments in zero pressure gradient boundary layers , 2009 .

[12]  Javier Jiménez,et al.  Turbulent boundary layers and channels at moderate Reynolds numbers , 2010, Journal of Fluid Mechanics.

[13]  Antonino Ferrante,et al.  A robust method for generating inflow conditions for direct simulations of spatially-developing turbulent boundary layers , 2004 .

[14]  G. Lauchle,et al.  Wall‐pressure fluctuations in turbulent pipe flow , 1987 .

[15]  Elias Balaras,et al.  A priori and a posteriori tests of inflow conditions for large-eddy simulation , 2004 .

[16]  Ramis Örlü,et al.  Assessment of direct numerical simulation data of turbulent boundary layers , 2010, Journal of Fluid Mechanics.

[17]  Javier Jiménez,et al.  A high-resolution code for turbulent boundary layers , 2009, J. Comput. Phys..

[18]  Ramis Örlü,et al.  Turbulent boundary layers at moderate Reynolds numbers: inflow length and tripping effects , 2012, Journal of Fluid Mechanics.

[19]  Mario J. Casarella,et al.  Spectral features of wall pressure fluctuations beneath turbulent boundary layers , 1991 .

[20]  M. Ghodbane,et al.  Surface pressure fluctuations in a separating turbulent boundary layer , 1987 .

[21]  M. Bull.  WALL-PRESSURE FLUCTUATIONS BENEATH TURBULENT BOUNDARY LAYERS: SOME REFLECTIONS ON FORTY YEARS OF RESEARCH , 1996 .

[22]  B. McGrath,et al.  Some Features of Surface Pressure Fluctuations in Turbulent Boundary Layers With Zero and Favorable Pressure Gradients , 1987 .

[23]  Martin Skote,et al.  Studies of turbulent boundary layer flow throughdirect numerical simulation , 2001 .

[24]  T. Lund,et al.  Generation of Turbulent Inflow Data for Spatially-Developing Boundary Layer Simulations , 1998 .

[25]  Nikolay Nikitin.  Spatial periodicity of spatially evolving turbulent flow caused by inflow boundary condition , 2007 .

[26]  Ivan Marusic,et al.  Hot-wire spatial resolution issues in wall-bounded turbulence , 2009, Journal of Fluid Mechanics.

[27]  Richard H. Pletcher,et al.  Inflow conditions for the large eddy simulation of turbulent boundary layers: A dynamic recycling procedure , 2006, J. Comput. Phys..

[28]  Jens M. Österlund,et al.  Experimental studies of zero pressure-gradient turbulent boundary layer flow , 1999 .

[29]  Ramis Örlü,et al.  The diagnostic plot - a litmus test for wall bounded turbulence data , 2010 .

[30]  P. Alfredsson,et al.  PRESSURE STATISTICS IN HIGH-REYNOLDS NUMBER TURBULENT BOUNDARY LAYER , 2005, Proceeding of Fourth International Symposium on Turbulence and Shear Flow Phenomena.