According to the explicit time-advanced method for getting pressure, which of these is correct?(a) Continuity is enforced at the previous step after starting to solve the current step(b) Momentum conservation is enforced at the previous step after starting to solve the current step(c) Momentum equation is enforced at each step before moving to the next step(d) Continuity is enforced before at each step moving to the next stepThe question was asked in semester exam.This is a very interesting question from Incompressible Flows topic in portion Incompressible Flows & Compressible Flows of Computational Fluid Dynamics

According to the explicit time-advanced method for getting pressure, w

1.	According to the explicit time-advanced method for getting pressure, which of these is correct?(a) Continuity is enforced at the previous step after starting to solve the current step(b) Momentum conservation is enforced at the previous step after starting to solve the current step(c) Momentum equation is enforced at each step before moving to the next step(d) Continuity is enforced before at each step moving to the next stepThe question was asked in semester exam.This is a very interesting question from Incompressible Flows topic in portion Incompressible Flows & Compressible Flows of Computational Fluid Dynamics
Answer» Correct CHOICE is (d) Continuity is ENFORCED before at each step moving to the next step Explanation: The divergence of the velocity field at the current step should be MADE zero. For this, the divergence of the velocity field at the previous step must be zero. So, continuity is zero at each step before moving to the next step.

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