Question

What are the two major types of boundary conditions?

(a) Wall and symmetry

(b) Inlet and outlet

(c) Dirichlet and Neumann

(d) Initial and physical

The question was asked in an interview.

This is a very interesting question from Boundary Conditions in portion Boundary Conditions of Computational Fluid Dynamics

Answer 1

Correct choice is (c) Dirichlet and Neumann

The explanation is: Dirichlet and Neumann boundary conditions are the two boundary conditions. They are used to define the conditions in the physical boundary of a problem.