Effect of freestream turbulence on wall turbulent flows over multi-scale rough walls

2013 Fiscal Year Final Research Report

• Project/Area Number: 24760133
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Fluid engineering
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: SUZUKI Hiroki 名古屋工業大学, 工学(系)研究科(研究院), 助教 (10626873)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Keywords: 乱流

Research Abstract

In this study, we attempt to examine characteristics of wall turbulent flows over one-scale and multi-scale rough walls, to simulate effect of free-stream turbulence on these wall turbulences, and to address the understanding of fundamental characteristics of decaying homogeneous-isotropic turbulence, which should be set as free-stream turbulence, by means of numerical simulation, of which accuracy is expected to be higher because of its highly energy-conservation characteristics.

Research Products

• [Journal Article] A 3D Navier-Stokes Simulation under Staggered/Collocated Grids with High-Kinetic Energy Conservation (2014)
  • Author(s): Suzuki, H., Matsuo, S., Watanabe, M., Hasegawa, Y., and Ushijima, T.
  • Journal Title: Proc. Of Grand Renewable Energy 2014
  • Peer Reviewed
• [Journal Article] Development and Application of an Navier-Stokes Simulation Code with High-Kinetic-Energy-Conservation (2014)
  • Author(s): Suzuki, H., Matsuo, S., Hasegawa, Y., and Ushijima, T.
  • Journal Title: Proc. Of Grand Renewable Energy 2014
  • Peer Reviewed
• [Journal Article] Direct Numerical Simulation of Grid Generated Turbuence (Analysis on Invariants and Rotta Model) (2013)
  • Author(s): Suzuki, H, Nagata, K., Sakai, Y., Hayase, T., Hasegawa, Y., and Uhijima, T.
  • Journal Title: Trans. JSME ser.B Volume: Vol. 70, No.807 Pages: 2363-2374
• [Journal Article] Direct Numerical Simulation of Fractal-generated Turbulence (2013)
  • Author(s): Suzuki, H., Nagata, K., Sakai, Y., Hayase, T., Hasegawa, T., and Ushijima, T.
  • Journal Title: Fluid Dyn. Res. Volume: Vol.45 Pages: 061409
• [Journal Article] An Attempt to Improve Accuracy of Higher-Order Statistics and Spectra in Direct Numerical Simulation of Incompressible Wall Turbulence by Using the Compact Schemes for Viscous Terms (2013)
  • Author(s): Suzuki, H., Nagata. K., Sakai, Y., Hayase, T., Hasegawa, Y., and Ushijima, T.
  • Journal Title: Int. J. Num. Meth. Fluids Volume: Vol. 73, No.6 Pages: 509-522
• [Journal Article] DNS Study on Pressure Characteristics of Fractal-generated Turbulence (2013)
  • Author(s): Suzuki, H., Nagata, K., Sakai, Y., Hayase, T., Hasegawa, Y., and Ushijima, T.
  • Journal Title: Proc. Of 4^<th> Int. Conf. on Jets, Wakes and Separeted Flows Pages: 1109
• [Journal Article] Development and Quantitative Validation of a Numerical Code using Highly Energy-Conservative Scheme (2013)
  • Author(s): Watanabe, M., Suzuki, H., Hasegawa, Y., and Ushijima, T.
  • Journal Title: Proc. Of 4^<th > Int. Conf. on Jets, Wakes and Separeted Flows Pages: 1170
• [Journal Article] DNS of Channel Flow with Two-scale Surface Roughness on One Wall (2013)
  • Author(s): Suzuki, H. and Perkins, R., J.
  • Journal Title: Proc. Of European Turbulence Conference 14 Pages: 115
• [Journal Article] DNS on Multiscale-Generated Grid Turbulence Using Classical Grid (2013)
  • Author(s): Suzuki, H, Nagata, K., Sakai, Y., Hasegawa, Y, and Ushijima, T.
  • Journal Title: Proc. Of Int. Symp. Turb. Shear Flow Phenom Volume: No. HOM1E
• [Presentation] Development and Application of an Navier-Stokes Simulation Code with High-Kinetic-Energy-Conservation (2014)
  • Author(s): Suzuki, H., Matsuo, S., Hasegawa, Y., and Ushijima, T.
  • Organizer: The Grand Renewable Energy 2014
  • Place of Presentation: 東京都
  • Year and Date: 20140727-0801
  • Invited
• [Presentation] A 3D Navier-Stokes Simulation under Staggered/Collocated Grids with High-Kinetic Energy Conservation (2014)
  • Author(s): Suzuki, H., Matsuo, S., Watanabe, M., Hasegawa, Y., and Ushijima, T.
  • Organizer: The Grand Renewable Energy 2014
  • Place of Presentation: 東京都
  • Year and Date: 20140727-0801
  • Invited
• [Presentation] Development and Quantitative Validation of a Numerical Code using Highly Energy-Conservative Scheme (2013)
  • Author(s): Watanabe, M., Suzuki, H., Hasegawa. Y., and Ushijima, T.
  • Organizer: The 4^<th > International Conference on Jets, Wakes and Separated Flows
  • Place of Presentation: 名古屋市
  • Year and Date: 20130917-21
• [Presentation] DNS Study on Pressure Characteristics of Fractal-generated Turbulence (2013)
  • Author(s): Suzuki, H., Nagata, K., Sakai, Y., Hayase, T., Hasegawa, Y., and Ushijima, T.
  • Organizer: The 4^<th > International Conference on Jets, Wakes and Separated Flows
  • Place of Presentation: 名古屋市
  • Year and Date: 20130917-21
• [Presentation] DNS of Channel Flow with Two-scale Surface Roughness on One Wall (2013)
  • Author(s): Suzuki, H. and Perkins, R., J.
  • Organizer: The 14^<th> European Turbulence Conference
  • Place of Presentation: Lyon市(仏国)
  • Year and Date: 20130901-04
• [Presentation] DNS on Multiscale-generated Grid Turbulence using a Classical Grid (2013)
  • Author(s): Suzuki, H, Nagata, K., Sakai, Y., Hasegawa, Y, and Ushijima, T.
  • Organizer: The 8^<th > International Symposium on Turbulence and Shear Flow Phenomena
  • Place of Presentation: Poitiers市(仏国)
  • Year and Date: 20130828-30
• [Presentation] 一般座標系コロケート格子を用いた風車翼まわり流れ場の解析 (2013)
  • Author(s): 渡邉雅也,鈴木博貴,長谷川豊,牛島達夫
  • Organizer: 日本機械学会東海支部第62期総会講演会
  • Place of Presentation: 津市
  • Year and Date: 20130318-19