How to do pics of tuft testing

[M_a_t_t]

I tried measuring the pressures on the separation edge I had been trialing, but my set up wasn't that great. So I will re do it, but I figured I might as well post where I put the puck for testing to see if anyone thinks I should try in a different location before I repeat the same test. I didn't do any testing with the bumper portion of it, just the lights. Is it important that I test on the same side if I do a there and back check?

I also noticed that the modified side is clearly dirtier than the stock side.




I will have to look around and see if I can rig up a pitot reference. Right now I have the propane tank seen in the trunk as a reference.

[JulianEdgar]

Originally Posted by M_a_t_t

I tried measuring the pressures on the separation edge I had been trialing, but my set up wasn't that great. So I will re do it, but I figured I might as well post where I put the puck for testing to see if anyone thinks I should try in a different location before I repeat the same test. I didn't do any testing with the bumper portion of it, just the lights. Is it important that I test on the same side if I do a there and back check?

I also noticed that the modified side is clearly dirtier than the stock side.

That looks fine but you will probably be needing to use a pitot tube reference rather than a pressure tank (not sure which you are doing). Just leave it in that position for your two-way average.

[M_a_t_t]

I just edited to add I was using a tank, but will look for something to rig up the pitot tube.

[JulianEdgar]

Originally Posted by M_a_t_t

I just edited to add I was using a tank, but will look for something to rig up the pitot tube.

Tank is fine for most testing but edge-of-wake testing is hard to do accurately without a pitot static port reference. Don't forget the pitot needs to be centre, front of car, at least 800mm above hood.

[M_a_t_t]

Originally Posted by JulianEdgar

Tank is fine for most testing but edge-of-wake testing is hard to do accurately without a pitot static port reference. Don't forget the pitot needs to be centre, front of car, at least 800mm above hood.

What is that number based on? Asking because in one of your other posts you used 2.2 meters off the ground and front corner (at least in picture it was).

Permalink:
https://ecomodder.com/forum/showthre...tml#post625899



Is it situational based on where you the probe you are measuring with is or?

[JulianEdgar]

Originally Posted by M_a_t_t

What is that number based on? Asking because in one of your other posts you used 2.2 meters off the ground and front corner (at least in picture it was).

Permalink:
https://ecomodder.com/forum/showthre...tml#post625899



Is it situational based on where you the probe you are measuring with is or?

That big pole's height and location were my starting point, but I found a central, front pole of 800mm gave the same results. And a bit less obvious!