Question

For a point in the supersonic flow lying at the intersection of the characteristics, its flow field properties depend on change in which of these regions?

(a) Domain of dependence

(b) Intersection points of the characteristics

(c) Region of influence

(d) Region outside the characteristics

The question was posed to me in an interview for internship.

I need to ask this question from Region of Influence and Domain of Dependencies in chapter Numerical Techniques for Steady Supersonic Flow of Aerodynamics

Answer 1

The correct choice is (a) Domain of dependence

Explanation: If a point P lies at the intersection of the left and right running waves, the flow field properties at point P is dependent on the flow field information in the region upstream i.e. domain of dependence.