Curvilinear Coordinates
Introduction
A curvilinear coordinate system is a type of coordinate system where the coordinate lines can be curved. Using a curvilinear coordinate system can make it easier to, for example, define boundary conditions that follow a curved surface. The curvilinear coordinate systems in COMSOL Multiphysics can define a vector field and an associated base vector system using four different methods:
Solve for the vector field using an Eigenvalue study.
A flow method, which solves the following equation for u and p, and uses u as the vector field:
Solve for the u and p using a Stationary study.