Transonic flow about a circular cylinder
Computers and Fluids - In honour of Gino Moretti on the occasion of his 70th birthday
Efficient implementation of weighted ENO schemes
Journal of Computational Physics
Low-dissipative high-order shock-capturing methods using characteristic-based filters
Journal of Computational Physics
Combined immmersed-boundary finite-difference methods for three-dimensional complex flow simulations
Journal of Computational Physics
A ghost-cell immersed boundary method for flow in complex geometry
Journal of Computational Physics
Journal of Computational Physics
Recovering High-Order Accuracy in WENO Computations of Steady-State Hyperbolic Systems
Journal of Scientific Computing
A sharp interface immersed boundary method for compressible viscous flows
Journal of Computational Physics
A Brinkman penalization method for compressible flows in complex geometries
Journal of Computational Physics
DNS of buoyancy-dominated turbulent flows on a bluff body using the immersed boundary method
Journal of Computational Physics
Prediction of wall-pressure fluctuation in turbulent flows with an immersed boundary method
Journal of Computational Physics
A simple second order cartesian scheme for compressible Euler flows
Journal of Computational Physics
Application of a ghost fluid approach for a thermal lattice Boltzmann method
Journal of Computational Physics
Journal of Computational Physics
Hi-index | 31.46 |
This paper describes the implementation of immersed boundary method using the direct-forcing concept to investigate complex shock-obstacle interactions. An interpolation algorithm is developed for more stable boundary conditions with easier implementation procedure. The values of the fluid variables at the embedded ghost-cells are obtained using a local quadratic scheme which involves the neighboring fluid nodes. Detailed discussions of the method are presented on the interpolation of flow variables, direct-forcing of ghost cells, resolution of immersed-boundary points and internal treatment. The method is then applied to a high-order WENO scheme to simulate the complex fluid-solid interactions. The developed solver is first validated against the theoretical solutions of supersonic flow past triangular prism and circular cylinder. Simulated results for test cases with moving shocks are further compared with the previous experimental results of literature in terms of triple-point trajectory and vortex evolution. Excellent agreement is obtained showing the accuracy and the capability of the proposed method for solving complex strong-shock/obstacle interactions for both stationary and moving shock waves.