Comparison of the Direct Numerical Simulation of Zero and Low Adverse Pressure Gradient Turbulent Boundary Layers

KITSIOS V., ATKINSON C., SILLERO J. A., BORRELL G., Güngör A. G., JIMENEZ J., ...Daha Fazla

3rd Symposium on Fluid-Structure-Sound Interactions and Control (FSSIC), Perth, Avustralya, 5 - 09 Temmuz 2015, ss.163-168 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1007/978-3-662-48868-3_26
  • Basıldığı Şehir: Perth
  • Basıldığı Ülke: Avustralya
  • Sayfa Sayıları: ss.163-168
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Statistics from the direct numerical simulation (DNS) of an adverse pressure gradient (APG) turbulent boundary layer (TBL) are presented. Flow simulations are performed using a TBL DNS code with the desired APG applied via a tailored farfield boundary condition. The APG TBL has a maximum momentum thickness based Reynolds number (Re-delta 2) of 6000, and a near constant ratio of pressure velocity to freestream velocity, over a range of Re-delta 2 from 3000 to 5000. Streamwise velocity variance profiles are shown to collapse under outer velocity scaling as opposed to friction velocity scaling over this range.