![]() This seemingly no-win situation is where NUMECA offers an innovative solution, however. However, there is a third factor: flow solvers must be able to read the type of meshes behind them, and as most flow solvers only accept either structured or unstructured meshes, this is a no-win situation. This question could be answered easily if the only factors to consider were the physics to be captured and the type of accuracy needed. In other words, as soon as a geometry falls outside of the classic range of structured mesh applications, the debate starts: when should we adhere to creating structured meshes versus simply switching to unstructured meshes? CFD users have to spend a lot of time defining these new topologies and cleaning the geometry before even starting to mesh. The problem with certain geometries is that they lack accuracy in terms of definition (“dirty” or “unclean”), and they do not present any particular trends to which standard structured mesh topologies can be applied. ![]() These types of meshes, which AutoGrid5™ excels at producing, are perfectly suited for turbomachinery applications with any kind of blade geometries.Īs the complexity of geometries began to increase (now often with more than 10k surfaces), the need for another type of mesh-one with unstructured properties-arose. Structured meshes offer several main advantages, such as precision, speed of generation, and uniform distribution of cells. In CFD history, structured meshes came first, and they are still in use today.
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