非圧縮性流体の湾曲した層流半噴流

概要

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An approximate analysis is presented of a twodimensional steady curved half-jet of an incompressible fluid. Employing orthogonal curvilinear coordinates which consist of the zero-streamline of irrotational curved flow to which the mixing layer is matched and its normals, the boundary layer equations accurate up to the second order are treated by the use of the small perturbation method. Expressing the small parameter as the power function of the streamwise coordinate x, where the parameter is the ratio of the width of the mixing layer to the local radius of curvature of the x-axis, both similar and non-similar flow fields are treated by changing the value of the exponent. The boundary conditions are imposed in the exact form on the first order solution but are given approximately to the second order one.<BR>The numerical results are shown graphically for two cases: the similar flow and the flow along a circular arc.
社団法人日本航空宇宙学会の論文