Calculating airflow from a tube into the atmosphere requires more than just pressure and cross-sectional area. Essential parameters include the upstream pressure, tube length, and temperature, which affect density and viscosity. Companies that manufacture spray nozzles provide calculators that estimate flow rates based on upstream pressure, assuming downstream pressure is 1 atmosphere. Therefore, it is not feasible to determine airflow with only the initial parameters mentioned.
PREREQUISITESEngineers, fluid dynamics researchers, and anyone involved in designing or analyzing systems that involve airflow through tubes or nozzles.
Are you talking about the upstream pressure? If so, you also need to know the length of the tube and the temperature (which determines the density and viscosity).enanthate said:Hi.
Is there any way to calculate airflow out of a tube (into atmosphere) with only the pressure and cross sectional area of the tube?
Chestermiller said:Are you talking about the upstream pressure? If so, you also need to know the length of the tube and the temperature (which determines the density and viscosity).
Then the answer to your original question is "no"enanthate said:Downstream.. Exit to atmosphere
Companies that make spray nozzles have calculators that will give you the flow rate given the pressure in the pipe leading to the nozzle (eg the upstream pressure) but they assume they are spraying into air (eg downstream pressure is 1 atmosphere).enanthate said:Hi.
Is there any way to calculate airflow out of a tube (into atmosphere) with only the pressure and cross sectional area of the tube?