Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

Discussion Forum : Hydraulics and Fluid Mechanics - Section 2 (Q.No. 2)
2.
The velocity corresponding to Reynold number of 2800, is called
sub-sonic velocity
super-sonic velocity
lower critical velocity
higher critical velocity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
27 comments Page 3 of 3.

Prasad said:   1 decade ago
There is no relation between mach number and Reynolds number,

Mach number is used to measure the speed of sound waves and Reynolds number is used to measure the type of the flow.

Mach number is the ratio of flow velocity to the speed of light.

Swapnil said:   1 decade ago
What is relation between Reynold number & mach number?

Shobhit kumar said:   1 decade ago
When mech number <1 the flow is sub sonic.

When mech number =1 the flow is sonic.

When mech number lies between 1 to 6 the flow is supersonic.

When mech number >6 the flow is hyper-sonic.

Prateek said:   1 decade ago
Ankith sub sonic & super sonic is measured with the help of Mach number.

Manoj said:   1 decade ago
@Girish for turbulent flow Re>4000.

Girish Changavi said:   1 decade ago
If Re >2000, tts laminar flow.

If Re < 4000 its turbulent flow.

If between 2000 to 4000 its transition flow.

Here Re is 2800 so its higher critical velocity.

Ankit dadhe said:   1 decade ago
When is it call sonic & super sonic?


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