The solution-adaptive mesh refinement feature of Ansys Fluent allows you to refine and/or coarsen your mesh based on geometric and numerical solution data. In addition, Ansys Fluent provides tools for creating and viewing adaption fields customized to particular applications. For information about using mesh adaption in Ansys Fluent, see Adapting the Mesh in the User's Guide. Theoretical information about the adaption process is described in detail in the following sections.