Here is the summation I am looking for an identity for:
[Σ](nidi^3/N)
I can bring out the N since that is a constant. The ^3 can go away by a variable substituion so I am essentially left with:
[Σ]XiYi
My question is can I break part that summation so I end up with Xi and Yi in...
I am attempting to calculate the NPSHA for a centrifugal pump in a system I am designing. I have checked over my calculations and come up with a number that looks to be technically correct but does not seem intuitively correct. I want to get a second opinion to see if I did something wrong...
I have tried a couple different ideas of how to approach this problem and would like some advice as to a method to use.
The Problem:
The pipe in question is a liquid feed tube for a spray nozzle. The feed tube has an ID of 0.067 inches, an OD of 0.125 inches, and is made of Titanium. The...
I am trying to characterize the expansion of air as it leaves a nozzle into the ambient environment. Let's assume a round cross section. I know that the air flow will initially have a cross section resembling the nozzle outlet with a slighty smaller diameter equivalent to the vena contracta...
I am looking to find a way to estimate what the temperature would be in an electronics box without getting into the complicated heat transfer equations. Hoffman provides a simplistic method here: http://www.oksolar.com/pdf/components/enclosures_heat_dissipation-ChAp36_37.pdf
This seems to apply...
