Crude oil of kinematic viscosity 2.25 Stokes flows through a 20 cm diameter pipe. If the rate of flow is 1.5 liters/sec, what will be the type of flow?
Show Hint
- Laminar
- Turbulent
- Transition
- Rotational
The Correct Option is A
Solution and Explanation
The flow type is determined using the Reynolds number formula:
\( Re = \frac{\rho v D}{\mu} \)
Given \( D = 20 \, \text{cm}, \, v = 1.5 \, \text{L/sec}, \) and kinematic viscosity \( \nu = 2.25 \, \text{Stokes}, \) the calculated Reynolds number is below 2000, indicating laminar flow.
Top Questions on Fluid Mechanics
- For the Bernoulli's equation to be applicable in a fluid flow situation, which of the following conditions is/are to be satisfied:
- GATE CE - 2025
- Physics
- Fluid Mechanics
- For a flowing fluid, a dimensionless combination of velocity (V), length scale (l), and acceleration due to gravity (g) would be
- GATE CE - 2025
- Physics
- Fluid Mechanics
The shaft of a 6 m wide gate in the figure will fail at a moment of 3924 kN.m about the hinge P. The maximum value of water depth \( h \) (in m) that the gate can hold is ......... (round off to the nearest integer).
- GATE CE - 2025
- Civil Engineering
- Fluid Mechanics
- The drag force, \( F_D \), on a sphere due to a fluid flowing past the sphere is a function of viscosity, \( \mu \), the mass density, \( \rho \), the velocity of flow, \( V \), and the diameter of the sphere, \( D \). Pick the relevant (one or more) non-dimensional parameter(s) pertaining to the above process from the following list.
- GATE CE - 2025
- Civil Engineering
- Fluid Mechanics
Consider steady flow of water in the series pipe system shown below, with specified discharge. The diameters of Pipes A and B are 2 m and 1 m, respectively. The lengths of pipes A and B are 100 m and 200 m, respectively. Assume the Darcy-Weisbach friction coefficient, \( f \), as 0.01 for both the pipes.
The ratio of head loss in Pipe-B to the head loss in Pipe-A is ___________ (round off to the nearest integer).
- GATE CE - 2025
- Civil Engineering
- Fluid Mechanics
Questions Asked in CUET PG exam
- What is the correct verb form: He, as well as his friends, ?
- Which preposition is correct: Chanakya lived ?
- CUET (PG) - 2025
- Prepositions
- Identify the possessive noun: My office car is parked elsewhere.
- Which tense is appropriate: How did Saira ?
- Complete the sentence: There is a growing synthesis between humanism and ?
- CUET (PG) - 2025
- Sentence Completion