Which of the following combinations of Stephanie Redfern Saylor Fluid

Question 17 / 40: Which of the following combinations of physical quantities is dimensionless (ρ = mass density, D is a length scale, v is a velocity, ν is kinematic viscosity, μ = dynamic viscosity, m = mass flow rate, Q = volumetric flow rate)?

A ρ v/ ν

B D/(v ν)

C m/ (D μ)

D v ν / (ρ m)

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Explanation:

Both the numerator and denominator have units of mass/time.

Quiz Home Page

https://www.jobilize.com/fluid-mechanics-mcq-quiz-by-stephanie-redfern-tuan-dinh

Fluid Mechanics ME201

Author:

Stephanie Redfern

The Saylor Foundation

USA

Access: Public Instant Grading

Attribution: Stephanie Redfern and Tuan Dinh. Fluid Mechanics. The Saylor Academy 2014, http://www.saylor.org/courses/me201/

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