Which of the following applies to a symmetry boundary?
(a) There is no flow and no scalar flux across the boundary
(b) There are flow and scalar fluxes across the boundary
(c) There is no scalar flux but flow is possible across the boundary
(d) There is no flow but scalar flux is possible across the boundary
I got this question during an internship interview.
This question is from Boundary Conditions topic in portion Boundary Conditions of Computational Fluid Dynamics