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http://dx.doi.org/10.3795/KSME-B.2003.27.9.1342

Characteristics of Wall Pressure Fluctuations in a Turbulent Boundary Layer after Blowing or Suction  

Kim, Joong-Nyon (한국과학기술원 기계공학과)
Kim, Kyoung-Youn (한국과학기술원 기계공학과)
Sung, Hyung-Jin (한국과학기술원 기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.27, no.9, 2003 , pp. 1342-1350 More about this Journal
Abstract
A direct numerical simulation of a spatially-developing turbulent boundary layer is performed to examine the characteristics of wall pressure fluctuations after the sudden application of wall blowing or suction. The uniform blowing or suction is given by the wall-normal velocity through a spanwise slot at the wall. The response of wall pressure fluctuations to uniform blowing or suction is analyzed by computing the turbulence statistics and frequency spectra. It is found that wall pressure fluctuations are more affected by blowing than by suction. The large elongated structure of wall pressure fluctuations is observed near the maximum location of $(p_w)_{rms}$ for blowing. The convection velocities for blowing increase with increasing the streamwise location after the slot. For both blowing and suction, the small scale of wall pressure fluctuations reacts in a short downstream distance to the spanwise slot, whereas the large scale recovers slowly in a farther downstream.
Keywords
Direct Numerical Simulation; Turbulent Boundary Layer; Wall Pressure Fluctuations; Local Forcing;
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1 Kim, J., Choi, J.-I. and Sung, H.I., 2002, 'Relationship Between Wall Pressure Fluctuations and Streamwise Vortices in a Turbulent Boundary Layer,' Phys. Fluids, Vol. 14, No.2, pp. 898-901   DOI   ScienceOn
2 Na, Y. and Moin, P., 1998, 'The Structure of Wall-Pressure Fluctuations in Turbulent Boundary Layers with Adverse Pressure Gradient and Separation,' J. Fluid Mech., Vol. 377, p. 347   DOI   ScienceOn
3 Lee, I., and Sung, H.J., 2001, 'Characteristics of Wall Pressure Fluctuations in Separated and Reattaching Flows over a Backward-Facing Step,' Exp. Fluids, Vol. 30, p. 262   DOI
4 Thomas, A.S.W. and Bull, M.K., 1983, 'On the Role of Wall Pressure Fluctuations in Deterministic Motions in the Turbulent Boundary Layer,' J. Fluid Mech., Vol. 128, p. 283   DOI
5 Johansson, A.V., Her, J.Y., and Haritonidis, J.H., 1987, 'On the Generation of High-Amplitude Wall Pressure Peaks in Turbulent Boundary Layers and Spots,' J. Fluid Mech, Vol. 175, p. 119   DOI   ScienceOn
6 Kim, J., 1989, 'On the Structure of Pressure Fluctuations in Simulated Turbulent Channel Flow,' J. Fluid Mech, Vol. 205, p. 421   DOI
7 Chang, P.A., Piomelli, U., and Blake, W.K., 1999, 'Relationship between Wall Pressure and Velocity Field Sources,' Phys. Fluids, Vol. 11, p. 3434   DOI
8 Willmarth, W.W., 1975, 'Pressure Fluctuations beneath Turbulent Boundary Layers,' Ann. Rev. Fluid Mech., Vol. 7, p. 13   DOI   ScienceOn
9 Lee, I. and Sung, H.J., 1999, 'Development of an Array of Pressure Sensors with PVDF Film,' Exp. Fluids, Vol. 26, p. 27   DOI
10 Choi, H. and Moin, P., 1990, 'On the Space - Time Characteristics of the Wall Pressure Fluctuations,' Phys. Fluids A, Vol. 2, pp. 1450 -1460   DOI
11 Park, S.H., Lee, I. and Sung, H.J., 2000, 'Effect of Local Forcing from a Spanwise Slot on a Turbulent Boundary Layer,' Exp. Fluids, Vol. 31, pp. 384-393   DOI
12 Blake, W.K., 1986, Mechanics of Flow-Induced Sound and Vibration, Academic Press, INC
13 Willmarth, W.W., 1956, 'Wall Pressure Fluctuations in a Turbulent Boundary Layer,' J. Acoust. Soc. Am., Vol. 28, p. 1048   DOI
14 Bull, M.K., 1967, 'Wall Pressure Fluctuations Associated with Subsonic Turbulent Boundary Layer Flow,' J. Fluid Mech., Vol. 28, p. 719   DOI
15 Lund, T. S., Wu. X. and Squires, K. D., 1998, 'Generation of Turbulent Inflow Data for Spatially-Developing Boundary Layer Simulation,' J. Comput. Phys., Vol. 140, pp. 233-258   DOI   ScienceOn
16 Kim, J., and Moin, P, and Moser, R., 1987, 'Turbulent Statistics in Fully Developed Channel Flow at Low Reynolds Number,' J. Fluid Mech., Vol. 177, pp. 133-166   DOI   ScienceOn
17 Rhee, G.H. and Sung, H.J., 2001, 'Numerical Prediction of Locally-Forced Turbulent Boundary Layer,' Int. J. Heat Fluid Fl., Vol. 22, No.6, pp. 624-632   DOI   ScienceOn
18 Park, J. and Choi, H., 1999 'Effects of Uniform Blowing or Suction from a Spanwise Slot on a Turbulent Boundary Layer Flow,' Phys. Fluids, Vol. 11, pp. 3095-3105   DOI
19 Kim, K., Baek, S. -J. and Sung, H. J., 2002, 'An Implicit Velocity Decoupling Procedure for the Incompressible Navier-Stokes Equations,' Int. J. Numer. Meth. Fl., Vol. 38, Issue.2, pp. 125-138   DOI   ScienceOn
20 Antonia, R.A., Zhu, Y. and Sokolov, M., 1995, 'Effect of Concentrated Wall Suction on a Turbulent Boundary Layer,' Phys. Fluids, Vol. 7, No. 10, pp. 2465-2474   DOI   ScienceOn
21 Kim, K., Sung, H.J. and Chung, M.K., 2002, 'Assessment of Local Blowing and Suction in a Turbulent Boundary Layer,' AIAA J., Vol.40, No.1, p. 175   DOI   ScienceOn