Question

Which of these equations are used in the SIMPLE algorithm?

(a) Momentum and energy equations

(b) Energy equation and equation of state

(c) Equation of state and continuity equation

(d) Continuity and momentum equations

The question was asked in class test.

I'm obligated to ask this question of Incompressible Flows in portion Incompressible Flows & Compressible Flows of Computational Fluid Dynamics

Answer 1

Right option is (d) Continuity and momentum equations

For explanation: The SIMPLE algorithm involves the calculations for pressure and velocity. It uses both the continuity and momentum equations. The momentum equation is used for the initial guesses. While applying the constraints, the continuity equation is also needed.