An approximate method for the calculation of the incompressible laminar spanwise boundary layer on an infinite uniform yawed cylinder with distributed suction
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This paper describes an approximate method to calculate the incompressible laminar spanwise boundary layer on an infinite yawed uniform cylinder with distributed suction. The calculation for the chordwise layer is supposed to be known. A similar method to calculate the laminar spanwise layer for a solid boundary is given by Rott and Crabtree, but for a porous boundary with suction no such method is known to the author at present except the one given in this paper. The present method is equally applicable to a solid boundary also. A comparison of the calculation by the present approximate method is made with the exact solutions of the spanwise layer with the chordwise velocity distribution U = Cxmat the edge of the layer, and the agreement is found to be quite satisfactory. Moreover, the method is very simple in operation.
KeywordsBoundary Layer Stagnation Point Laminar Boundary Layer Solid Boundary Adverse Pressure Gradient
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- 1.Rott, N. and Crabtree, L. F. “Simplified laminar boundary layer calculation for bodies of revolution and for yawed wings,”Journal of the Aeronautical Sciences, August 1952,19 (8).Google Scholar
- 2.Schlichting, H. .. “An approximate method for the calculation of the laminar boundary layer with suction for bodies of arbitrary shape,”N.A.C.A.T.M., 1216, 1949.Google Scholar
- 3.Iglisch, R. .. “Exact calculation of laminar boundary layer in longitudinal flow over a flat plate with homogeneous suction,”Ibid., 1205, 1949.Google Scholar
- 4.Sinha, K. D. P. .. “The laminar boundary layer on an infinite uniform yawed cylinder with distributed suction for the chordwise potential velocity distribution U = Cxm, C.P. No. 214,A.R.C.T.R. 17183, 11th November, 1954.Google Scholar
- 5.Thwaites, B. .. “The development of the laminar boundary layer under conditions of continuous suctions. Part II. Approximate methods of solutions,”A.R.C., 12699, F.M. 1296a, 1949.Google Scholar
- 6.Lin, C. C. ..The Theory of Hydrodynamic Stability, Cambridge University Press, 1955.Google Scholar