Distance water jets
Distance water jets
(OP)
Here's what I'm looking for, a formula that tells you how far water travels after exiting an HDPE pipe at a certain velocity. Working on a rip rap design on a steep slope but don't know how far I need to extend the rip rap.





RE: Distance water jets
http://www.fhwa.dot.gov/bridge/hydpub.htm#hec
RE: Distance water jets
I usually calculate the distance for the top of the jet, and provide a margin of error in the rip rap length to allow for possible errors in the velocity calculation.
RE: Distance water jets