Which option is correct regarding constraints in the viscous flow problems governed by the continuity and momentum equation?

Which option is correct regarding constraints in the viscous flow problems governed by the continuity and momentum equation? Correct Answer Constraints are created by the elimination of pressure

In viscous flow problems, constrains are not readily available from the presented equations. Since pressure is not present in all the governing equations, we eliminate it from the given other equations. The constraints are created on velocity by the elimination of pressure, and thus, the penalty method is applied.
Bissoy MCQ

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