K factor calculator-Pipe Exit question

[BootsWithTheFur]

First off I would like to say thank you to whoever created this series of calculators, i have found them very valuable.

In regards to the Pipe Exit K factor calculator, it appears that regardless of the geometry, whenever flow exits a pipe, the K factor is 1?

I have a pipe exitting into a larger plenum, I assume this is best represented as a sudden enlargement--in this case how does one determine when it is appropriate to use K1 vs K2?

On a side note, maybe this has been mentioned before but under the K-factor Calculator for fittings>>standard tee>>Flow i believe there is a typo.

Thanks

Eric

[admin]

Eris,

Thank you for nice words about my work.

I suggest you for your problem to use "sudden and gradual enlargement" part of K factor calculator at:
http://www.pipeflowcalculations.com/res ... fficientK/ - second from bottom.

There, if you enter 180 deg angle of enlargement you will get both values - for diameter d1 - there is K1 and for diameter d2 there is K2. Both are appropriate to use.

Also thank you for pointing to the typing error - I will fix it.