What is critical speed in the context of flui | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In fluid dynamics, critical speed (or critical velocity) is the specific velocity of a fluid flow at which the flow transitions from laminar to tu

Vedclass · Accepted Answer

The speed at which a fluid becomes turbulent.

Vedclass · Answer

(A) In fluid dynamics, critical speed (or critical velocity) is the specific velocity of a fluid flow at which the flow transitions from laminar to turbulent. When the velocity of the fluid is below this critical value, the flow is smooth and orderly (laminar). When the velocity exceeds this critical value, the flow becomes chaotic and irregular (turbulent). This transition is determined by the Reynolds number $(Re)$, where $Re = \frac{\rho v D}{\eta}$. For a pipe, the flow typically becomes turbulent when $Re > 2300$.

What is critical speed in the context of fluid flow?

Similar Questions

Show that the Reynolds number is dimensionless.

What is the value of Reynolds number for turbulent flow?

What is turbulent flow? Give an example of turbulent flow.

$A$ fluid of density $\rho$ is flowing through a uniform tube of diameter $d$. The coefficient of viscosity of the fluid is $\eta$. The critical velocity of the fluid is:

What is critical velocity? Write a formula for critical velocity.

Vedclass Test Series

Exam Paper Generator

Online Exam Module