caa a22 4500 445811323 CHVBK 20180317145212.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s00419-009-0393-z doi (NATIONALLICENCE)springer-10.1007/s00419-009-0393-z Flow of power-law fluids over a moving wedge surface with wall mass injection [Elektronische Daten] [Mehmet Akçay, M. Yükselen] The boundary layer problem of a power-law fluid flow with fluid injection on a wedge whose surface is moving with a constant velocity in the opposite direction to that of the uniform mainstream is analyzed. The free stream velocity, the injection velocity at the surface, moving velocity of the wedge surface, the wedge angle and the power law index of non-Newtonian fluid are assumed variables. The fourth order Runge-Kutta method modified by Gill is used to solve the non-dimensional boundary layer equations for non-Newtonian flow field. Without fluid injection, for every angle of wedge β, a limiting value for velocity ratio λcr (velocity of the wedge surface/velocity of the uniform flow) is found for each power-law index n. The value of λcr increases with the increasing wedge angle β. The value of wedge angle also restricts the physical characteristics of the fluid to be used. The effects of the different parameters on velocity profile and on skin friction are studied and the drag reduction is discussed. In case of C=2.5 and velocity ratio λ =0.2 for wedge angle β = 0.5 with the fluid with power law-index n=0.5, 48.8% drag reduction is obtained. Springer-Verlag, 2009 Non-Newtonian fluid nationallicence Power-law fluid nationallicence Drag reduction nationallicence Wedge flow nationallicence Moving wall nationallicence Injection nationallicence Akçay Mehmet ROKETSAN, Elmadaǧ, Ankara, Turkey aut Yükselen M. Faculty of Aeronautics and Astronautics, İstanbul Technical University, Maslak, 34469, Istanbul, Turkey aut Archive of Applied Mechanics Springer-Verlag 81/1(2011-01-01), 65-76 0939-1533 81:1<65 2011 81 419 https://doi.org/10.1007/s00419-009-0393-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00419-009-0393-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Akçay Mehmet ROKETSAN, Elmadaǧ, Ankara, Turkey aut NATIONALLICENCE 700 1- Yükselen M. Faculty of Aeronautics and Astronautics, İstanbul Technical University, Maslak, 34469, Istanbul, Turkey aut NATIONALLICENCE 773 0- Archive of Applied Mechanics Springer-Verlag 81/1(2011-01-01), 65-76 0939-1533 81:1<65 2011 81 419 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer