1 Introduction. - MIT

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1. I-campus project School-wide Program on Fluid Mechanics Modules on High Reynolds Number Flows K. P. Burr, T. R. Akylas & C. C. Mei CHAPTER TWO. TWO-DIMENSIONAL LAMINAR boundary LAYERS. 1 introduction . When a viscous fluid flows along a fixed impermeable wall, or past the rigid surface of an immersed body, an essential condition is that the velocity at any point on the wall or other fixed surface is zero. The extent to which this condition modifies the general character of the flow depends upon the value of the viscosity. If the body is of streamlined shape and if the viscosity is small without being negligible, the modifying effect appears to be confined within narrow regions adjacent to the solid surfaces; these are called boundary layers. Within such layers the fluid velocity changes rapidly from zero to its main-stream value , and this may imply a steep gradient of shearing stress.

6 3.1 Similarity Solution. We look for a one-parameter transformation of variables y;xand under which the equations for the boundary value problem for are invariant.

  Introduction, Solutions, Value, 1 introduction, Boundary, Boundary value