New Adaptive Central-Upwind Scheme Enhances Compressible Flow Simulations

A recent paper titled "A generalized adaptive central-upwind scheme for compressible flow simulations and preventing spurious vortices" by Amareshwara Sainadh Chamarthi introduces a new adaptive central-upwind scheme aimed at enhancing the simulation of compressible flows, particularly in scenarios with discontinuities. This novel approach reportedly improves computational efficiency compared to traditional central gradient-based reconstruction methods.

The key findings of the research indicate that the proposed method allows for oscillation-free results while significantly reducing computational costs. The adaptive central-upwind algorithm is designed to be compatible with various existing methods, not just the gradient-based reconstruction. Notably, the study claims that the new algorithm can achieve a 20-30% reduction in computational expenses while also yielding improved simulation results.

One of the most significant contributions of this research is its ability to prevent the generation of spurious vortices in double shear layer test cases, even when using linear schemes. This robustness suggests that the method could be a valuable tool for researchers and engineers working in fluid dynamics, particularly in applications where accurate flow simulations are critical.

The paper is available for further reading at arXiv:2409.02340.