Recent content by HoBBLeCooKiE

I guess I didn't explain clearly...sorry about that. I have a pipe system that runs from the pump 8m up to 2 cyclones. The total head would be the 8m + headloss due to friction + headloss due to split + headloss due to any bends, valves, enlargements, etc. + head needed at exit. I need 140kPa...

Can anyone give me some assistance on this problem: I have a pump below a sump of 1m high and pumping upward in a pipe that splits near the end. I require at least 140kPa pressure on EACH pipe. I know I need to enter the pressure in terms of head into the total head (physical height -...

http://img405.imageshack.us/img405/6552/airflowoverisection.th.jpg http://img88.imageshack.us/img88/8671/dragcoefficient.th.jpg It cleared up my confusion...:wink: thanks people! I just googled: drag coefficients for hollow sections and got a PDF file with all needed info.

Yes, but when the air hits the web side (as in Cd1) it will be restricted when trying to move around the web area because of the plates either side. This will definitely cause the Cd value to be higher.

Wouldn't the value for Cd1 be a bit higher than Cd2?

What I meant was that I need 3 Cd values. (I attached a quick sketch of it.) [PLAIN]http://img32.imageshack.us/img32/6361/ibeam.jpg Cd values are for: 1 - Flow onto "web" area. 2 - Flow onto flat "plate" area. 3 - Flow parallel to the length of the I-beam. I would like to see the...

Can anyone PLEASE help me in pointing me in the right direction? I need to obtain drag coefficient calues for I-beams. I found a site stating it was 2.7, but it says nothing about the orientation?? I basically need the Cd-value for flow parallel to the I-beam, from the top and from the side...

What about the weight of the head?? Doesn't that support the theory? If an object is thrown (or if it falls) the heaviest side is usually in the front (facing the direction in which it is traveling?)

Hi guys! How can one calculate your reactions at both ends of a simply supported beam if one reaction is higher than the other one? Example: Support A (one end of the beam) is 100mm higher than Support B (other end) and there is a 22kN/m UDL distributed along the length of 2.5m Does your...