Bubble Panels

ge a fluid flow manorgaph from GRACO paint equipment supplier

duh! not trying to measure fluid flow or regulate pressure. trying to get air through water at a controlled height. think fish tank with a nicer frame and pretty lights and stuff! need to know how many holes and what size to get even bubbles accross the panel. lots of variables, water press., supply air press., length of tubing, how many holes? what size holes?

Crane puts out a manual, I think it is called The flow of liquids through pipes. The formulae you desire will be there or perhaps in the Power Engineering book called "Steam"

thank you!

When we do live gas flame effects burning on the surface of a water bath we use a system similar to that described in the original posting. You have not specified the air pressure available which I assume will be low pressure fanned air (70mbar) nor the depth of water above the distribution pipe which I assume to be 300-450mm. The important variables for uniform or predictable distrubution are that the air velocity in the silicone tube must be low and that the total area of the holes should not exceed 70% of the cross sectional area poof the pipe bore. The holes should be as small as you can DRILL commercially say 0.5 to 1mm dia to give a small buble size and assuming that they are drilled every 10mm and the tank is 1000 long you will need a 12mm bore. The holes could be uniformly distributed ot arranged in a pattern as long as the total hole area/ pipe area is less than 0.7. Have fun

thank you more!