Solution-Adaptation Applied to Eulerian Transport

In recent years there has been a growing interest in the use of unstructured adaptive grids for modeling atmospheric transport and diffusion problems. The unstructured grids provide the ability to descretize complex computational domains with relative ease. The capability to resolve the inherently multiscale nature of atmospheric flows in a computationally efficient manner (via static or dynamic grid adaptation) can also be achieved. In this paper the applications of solution-adaptive technique (dynamic grid adaptation) to Eulerian transport are presented. Adaptation criteria are discussed and the improvement in computational speed is demonstrated. A decrease in computational resources while maintaining the fidelity of the solution has obvious benefits for responding to emergency-response scenarios.