Blast wave, generated by a high detonating spherical charge, is modeled using the Euler equations. The problem is split into two parts. The first part makes use of the isotropy to solve the problem in spherical radial coordinate. Overpressure distribution is presented and compared to both existing experimental and numerical data with very good agreement. The data transfer technique from the one-dimensional stencil onto the three-dimensional mesh is presented and its effectiveness, accuracy and efficiency are demonstrated. The second part consists on a three-dimensional computation fed with the isotropic remapped data. To show the feasibility of the 1D-3D combined method, the simulation is performed on a sample three-dimensional configuration and its results are presented.
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