Euler number is defined as the ratio of inertia force to _______________ force?
Correct answer: A. Pressure
- A. Pressure
- B. Elastic
- C. Gravity
- D. Viscous
Explanation
The Euler number compares inertial effects with pressure forces, commonly written as Eu = ΔP/(ρV²) or an equivalent form. Gravity and viscous forces define other dimensionless groups, such as Froude and Reynolds numbers.
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