Quastion 1: choose the right answer for the following questions: a) Euler’s equa
ID: 1867381 • Letter: Q
Question
Quastion 1:
choose the right answer for the following questions:
a) Euler’s equation arises from neglecting the …………. Terms in the more general Navier-Stokes equations.
1- Density 2- Pressure 3-Viscosity 4-None
b) A……………. is used to decelerate a flowing fluid to zero by a frictionless process, thereby allowing the measurement of stagnation pressure.
1-Static pressure probe 2-pitot tube 3-orifice plate 4-none
c) There is a flow probe that depend on 5 parameters and has 3 independent Dimensions. How many pi parameters will that flow problem have?
1-3 2-5 3-2 4-Not enough information
D) The Reynolds number compares initial to …… effect in a flow problem.
1- Pressure 2- Surface tension 3-Viscus 4- none
Explanation / Answer
a. Viscosity. In Eulers equation the viscosity and thermal conductivity is taken zero.
b. Pitot tube.
c. Not enough information.
d. Viscus.