Airflow velocity through hole on an aircraft
Airflow velocity through hole on an aircraft
(OP)
Hi!
I'd like to design an air particle pollution sensing interface prototype, mounted on an aircraft. If the aircraft's velocity, the inlet and outlet diameter of the hole is known, how can I calculate the airflow's velocity through the hole? Thanks in advance.
sgergo
I'd like to design an air particle pollution sensing interface prototype, mounted on an aircraft. If the aircraft's velocity, the inlet and outlet diameter of the hole is known, how can I calculate the airflow's velocity through the hole? Thanks in advance.
sgergo





RE: Airflow velocity through hole on an aircraft
Unfortunately I can't predict whether the velocity will even be negative or positive, never mind what the magnitude actually is.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Airflow velocity through hole on an aircraft
RE: Airflow velocity through hole on an aircraft
is the tube going to be straight (like a pipe) or convergent/divergent ?
is the opening going to "choke", or will be allow free steam velocities to develop ?
how fast is the plane going ? sub-sonic ? super-sonic ?
is the opening located away from the plane (in free stream conditions), or close to it (so it is affected by the airflow around the plane) ?
Quando Omni Flunkus Moritati
RE: Airflow velocity through hole on an aircraft
What I'd like to do is basically a jet pump where both motive and secondary flow would be air. The device would be mounted on an airplane where the secondary flow inlet is facing to the ground. I just need something to understand the initial calculations, especially for the design of the suction chamber to achieve a low volume flow in the secondary section. This air would be absorbed in water and high air velocity would draw out the water from its chamber. I'm well aware that several experiments will be needed.
RE: Airflow velocity through hole on an aircraft
Probably another silly device named after its inventor that will never find a practical use.
But you could try it.
Yes, we're teasing you. It's not nice, but you are asking "student" questions.
This is chapter 1 in any fluid dynamics / aerodynamics textbook.
A small effort at research would turn up all the answers to your questions.
STF