Question

Which of these is not an application of a hodograph?

(a) Solution for method of characteristics

(b) Obtaining motion of celestial objects

(c) Swinging Artwood’s machine

(d) Determining temperature

I had been asked this question in a national level competition.

My question is from Determination of Compatibility Equations in portion Numerical Techniques for Steady Supersonic Flow of Aerodynamics

Answer 1

Correct option is (d) Determining temperature

Explanation: Hodograph is a velocity diagram which has its applications in finding the graphical solution of the methods of characteristics in high tech computers as it related velocity to characteristic lines, obtaining the position of stars, planets, swinging Artwood’s machine as well as in metrological department.