Transition of Boundary Layer on Rotating Flat Plate
This paper reports the results of an experimental investigation on transition of a boundary layer on a rotating flat plate in order to reveal the stabilizing and destabilizing effects of Coriolis acceleration and to obtain the quantitative expression of transition Reynolds number as a function of rotation number. Significant increase of transition Reynolds number of stabilized layer is found, which is more remarkable when the free stream turbulence level is low. Transition of stabilized layer begins with intermittent fluctuations similar to that of a stationary boundary layer but with clearer distinction of quiescent and fluctuating periods. Transition of destabilized layer is characterized by the gradual increase of frequency of velocity fluctuation.
KeywordsReynolds Number Velocity Fluctuation Rotation Number Stabilize Boundary Layer Skin Friction Coefficient
Unable to display preview. Download preview PDF.
- 1.Chawla,M.: The stability of boundary layer flow subject to rotation. Ph.D.Dissertation. Michigan State Univ. 1969.Google Scholar
- 3.Koyama,H.;Masuda,S.;Ariga,I.;Watanabe,I.: Stabilizing and destabilizing effects of Coriolis force on two-dimensional laminar and turbulent boundary layers. Trans.ASME,Ser.A, Vol.101.No.l(1979)23–31.Google Scholar