Question

Which of these statements is incorrect about the Arbitrary Lagrangian-Eulerian method?

(a) Velocities are stored in the face centres

(b) All the components of velocities are stored at the same point

(c) Velocities are stored in the vertices

(d) Pressures are stored in the cell centres

The question was asked in examination.

This interesting question is from Incompressible Flows topic in section Incompressible Flows & Compressible Flows of Computational Fluid Dynamics

Answer 1

Correct option is (a) Velocities are stored in the face centres

Best explanation: In the Arbitrary Lagrangian-Eulerian method, the scalar quantities are all stored at the cell centres like the completely staggered arrangement. All the velocity components are stored at the same point which are the vertices.