In which of these approaches is the pressure force treated as a body force?(a) Finite volume method – non-conservative approach(b) Finite volume method – conservative approach(c) Finite difference method – conservative approach(d) Finite difference method – non-conservative approachThe question was asked in an interview for internship.The query is from Incompressible Flows topic in section Incompressible Flows & Compressible Flows of Computational Fluid Dynamics

In which of these approaches is the pressure force treated as a body f

1.	In which of these approaches is the pressure force treated as a body force?(a) Finite volume method – non-conservative approach(b) Finite volume method – conservative approach(c) Finite difference method – conservative approach(d) Finite difference method – non-conservative approachThe question was asked in an interview for internship.The query is from Incompressible Flows topic in section Incompressible Flows & Compressible Flows of Computational Fluid Dynamics
Answer» Right choice is (b) Finite volume method – conservative approach For EXPLANATION: In the GENERAL integral form of the conservation equations, the PRESSURE force is taken as a volume integral. While using the finite volume method, this is changed into a SURFACE force by using the Gauss-Divergence theorem.

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