| Popis: |
A three dimensional Euler solver based on Kinetic Flux Vector Splitting scheme on moving grids(KFMG) is developed. This KFMG Euler solver operates on structured grid network with finite volume discretization. Also, the solver uses fourth order Runge-Kutta method and high resolution scheme for higher time and space accuracies respectively. The boundary conditions to tackle moving inner boundary and fixed outer boundary have also been derived. The grid moving algorithm is based on both spring analogy method and Trans Finite Interpolation method to tackle large delflections/deformation of the body. Intially, the solver has been applied to a harmonically, oscillating ogive-cylinder-ogive configuration in transonic flow. Then, the solver is applied to oscillating ONERA-M6 wing configuration. The steady and unsteady aerodynamic characteristics of ONERA-M6 wing are presented in detail. The unsteady flow arises due to oscillation of the wing in transonic flow have been brought out by capturing the shock oscillations using the kinetic Euler solver on moving grids. |
