Role of CFD and Visualization Technique for Atmospheric Re-Entry Problems of H-II Orbiting Plane(HOPE)

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Numerical Simulation is used for the aerodynamic design and flight analysis of re-entry spacecrafts, HOPE and HYFLEX. Several hundreds test runs are made to determine optimum configuration of HOPE. Real gas effects are also estimated by using non-equilibrium Navier-Stokes code and code validation are continued by comparing numerical results with conventional HWT, high enthalpy wind tunnel, and flight measurement data. CFD activity of enormously enlarged hypersonic flow simulations by Reentry spacecraft developments, enforces large scale parametric studies and parallel computations by NWT at NAL can correspond to these demands.