The concept of the boundary layer was proposed by Ludwig Prandtl in 1904. This concept has allowed prediction of skin friction drag, heat transfer from the wall and separation of the boundary layer, which in turn enables proper design of airplanes, ships, other vehicles and equipment through/around which fluid flow takes place. The centenary of the proposal by Prandtl is being celebrated in various ways. This article is an attempt to study the behavior of turbulent boundary layer and standing eddy region past porous obstacles having different shape and different porosities.

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Turbulent Boundary Layer Porous Fences Standing Eddy Region