I am building a small wind tunnel, and I have a few questions about it.
First: The Fan I am using produces 800cfm and is 12'' in diameter, I am going to narrow it down to 6''. The calculated wind speed that I got was 74.5km/h. Can anyone back me up on this?
Second: When I use scale models...
Recreating the Mythbusters' Terminal Velocity Wind Tunnel - Need advice on Manometer
Hello,
I am trying to find the terminal velocity of a projectile. I am placing the projectile inside a clear tube and blowing compressed air inside the tube until the projectile is hovering at some height...
Is there a (freeware?) program to calculate 3D lift and drag for simple flying bodies, e.g. ball, cylinder, cube, wing?
There are programs to calculate lift and drag for foils (2D programs), e.g. javafoil of Martin Hepperle. Those
programs could be used to study the flow in 2D only. E.g...
I completed a wind tunnel test on a NACA 23012 aerofoil last week and am now writing a report on my findings! I need some help with working out the lift Coefficient as i seem to be going wrong somewhere.
Cl= L/.5 ρ Vw² S
To find the lift force i am subtracting the lift force which was...
Why aren't pressure sensors used for measuring forces in a wind tunnel? Why are strain gauges preferred? Is it because strain gages are sensitive?
The lift and drag plates attached to the stinger should feel strain in two directions. How come the strain gage manages to measure the strain of...
hey u lil smart asses,
I have to start a really important project in like 2 days, (extended essay for those ex ib) and i have to investigate on airfoils in a wind tunnel, basically i have a lot of choice. I thought I could design a four-digit naca airfoil (tho it seems really complicated)...
hey all of you lil engineering smart asses,
I have to start a really important project in like 2 days, (extended essay for those ex ib) and i have to investigate on airfoils in a wind tunnel, basically i have a lot of choice. I thought I could design a four-digit naca airfoil (tho it seems...
Hey,
I'm trying to measure the lift/drag of a wing in a low-speed wind tunnel, the only ways i might know are using a load cell or force probs, but have no idea about how to set it all up and my school doesn't have the material. So please, can u give me any way using simple things to measure...