Multi-disciplinary applications like aerodynamic shape optimisation and aeroelastic problems invo... more Multi-disciplinary applications like aerodynamic shape optimisation and aeroelastic problems involve changes in the shape of the configuration studied. Application of computational fluid dynamics for these problems would require that a new grid be generated every time the geometry changes. There could be two ways by which this could be achieved. The first approach is regeneration of the complete grid. This is too time consuming and is ruled out for multiblock structured grids around complex geometries. The second approach is changing or moving the grid points inside the domain according to the changes on the boundaries. This approach can be highly efficient and can produce grids of acceptable quality.
The aim of the present work is to develop a code for grid movement of multiblock structured grids... more The aim of the present work is to develop a code for grid movement of multiblock structured grids to be used for aerodynamic shape optimisation and aeroelastic problems. Application of computational fluid dynamics for these problems would require that a new grid be generated every time the geometry changes. In this paper, different grid movement strategies available in the literature, which can be applied to structured grids, have been tested for an aerofoil. Based on this a methodology for grid movement of multiblock structured grids is devised. The present method uses interpolations based on radial basis functions to obtain the displacements of corners and edges of a block. The displacements on the faces and volume can be obtained by using transfinite interpolation or linear and semi-torsion springs.
The aim of the present work is to access the ability of the three-dimensional RANS code MB-EURANI... more The aim of the present work is to access the ability of the three-dimensional RANS code MB-EURANIUM is predicting shock wave boundary-layer interaction. Results are presented for two cases in this paper. The first is the turbulent boundary-layer shock interaction on a twodimensional ramp. The second case is that of laminar boundary-layer shock interaction over a blunted cone-flare.
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Papers by kiran kumar