Knupp, P.: Hexahedral and Tetrahedral Mesh Untangling. Engineering with Computers 17, 261–268 (2001) MATHKnupp PM (2001) Hexahedral and tetrahedral mesh untangling. Eng Comput 17(3):261–268Knupp P (2001) Hexahedral and tetrahedral mesh untangling. Eng Comput 17:261–268 MATH...
This objective function allows simultaneously untangling and smoothing the initial mesh. The distortion of quadrilateral and hexahedral elements is defined in terms of their decomposition in triangular and tetrahedral sub-elements, respectively [20], [21]. Thus, the optimization methods for quadrilateral ...