Recent content by proponents

Well like I said earlier, I ended up using the Swamee-Jain equation form 3, and calculated the diameter. But, since the Swamee Jain eq is only accurate for pipes with a relative roughness greater than smooth, I needed to check this. I set up a spreadsheet with hundreds of diameters. Then...

I have also tried the Swamee-Jain formula... but that does not apply to smooth pipes. I can't think of any other way to get diameter when you only have Q, hl, L, and the properties of the fluid...

Homework Statement Heated air at 1 atmosphere and 35 deg. Celsius is to be transported in a 150 meter long circular plastic duct (smooth) at a rate of 0.35 cubic meters/sec. If the head loss in the pipe is not to exceed 20 meters, determine the minimum diameter of the duct. Homework...