What is the velocity of air through a 6mm pipe at 3 bar pressure?

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    Pipe Velocity
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Discussion Overview

The discussion revolves around calculating the velocity of air flowing through a 6mm diameter pipe at a pressure of 3 bar. Participants explore the theoretical aspects of fluid dynamics related to this scenario, including the effects of pressure and pipe dimensions on air velocity.

Discussion Character

  • Technical explanation, Mathematical reasoning, Debate/contested

Main Points Raised

  • One participant seeks assistance in determining the velocity of air at the outlet of a straight pipe given specific dimensions and pressure conditions.
  • Another participant proposes a formula for calculating the outlet velocity based on the pressure difference and inlet velocity, but notes uncertainty regarding the inlet velocity.
  • A different participant raises a question about the velocity distribution within the pipe, indicating that the air at the center may move faster than that at the circumference.
  • One participant suggests that the scenario involves gas dynamics and mentions the possibility of reaching Mach 1 at the outlet, implying potential compressibility effects at the given pressure.

Areas of Agreement / Disagreement

Participants express differing views on the factors affecting air velocity, including the importance of inlet velocity and the implications of compressibility. No consensus is reached on the specific velocity or the conditions under which it should be calculated.

Contextual Notes

There are unresolved assumptions regarding the inlet velocity and the effects of compressibility at the specified pressure. The discussion does not clarify the definitions of terms used or the conditions under which the proposed equations apply.

Who May Find This Useful

Individuals interested in fluid dynamics, particularly in applications involving gas flow through pipes under varying pressure conditions, may find this discussion relevant.

ganuganu
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Can someone help me here i need to find the velocity through straight pipe with length 0.11meter and diameter 6mm and air flows through the pipe at a pressure of 3bar. Now i want to find the velocity of air through the outlet in m/s?
 
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if I understand your question right

v_out = [2(p_in - p_out)/airdensitiy + (v_in)^2]^0.5
 
AeroTron said:
if I understand your question right

v_out = [2(p_in - p_out)/airdensitiy + (v_in)^2]^0.5
iam using a pressure of 3bar in compressor i don't know what is the velocity at inlet.
 
Velocity at what radius? The air at the center of the pipe will be moving faster than the air at the circumference.
 
sounds like a gasdynamics. 3 bar in a compresser? Mach 1 at outlet.
 

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