Improved Wall Law Methods for Industrial Applications of CFD

As geometries become more complex due to industry demands, the more inherent problems will occur with the current wall law methods. This paper investigates one commonly used wall function (log-law) and another which is well developed, however it is not currently widely used (Coles law). The Coles model was developed to overcome some of the major errors educed by the assumptions made to obtaining the log-law function, no separation modelling. The implemented functions are preliminary and are used to evaluate the overall performance of the algorithm. However, it is still possible to observe the short comings involved in using a wall function, and the associated problems with the implementation. Dynamic Grid Adaptation (DGA) is present as one method of the solving the major problems which wall functions incur.