April 22, 2024, 02:16:40 AM
Forum Rules: Read This Before Posting

### Topic: Need help with Momentum transport in a converging nozzle..where do i start?  (Read 4954 times)

0 Members and 1 Guest are viewing this topic.

#### yasha

• Very New Member
• Posts: 2
• Mole Snacks: +0/-0
##### Need help with Momentum transport in a converging nozzle..where do i start?
« on: September 07, 2006, 01:08:05 AM »
Momentum transport in a converging nozzle...this is from one of the subject that I have to take this semester, Transport Phenomena...I've read lots of articles but the problem is I really dont know where to start...

#### eugenedakin

• Oilfield Consulting Chemist
• Retired Staff
• Full Member
• Posts: 658
• Mole Snacks: +88/-2
• Gender:
• My desk agrees with the law of entropy
##### Re: Need help with Momentum transport in a converging nozzle..where do i start?
« Reply #1 on: September 07, 2006, 11:19:00 AM »
Hi yasha,

There is always alot of information on many topics that are to be learned in university.  Could you provide a question, and then this way I can try and help you.

I wish you the best,

Eugene
There are 10 kinds of people in this world: Those who understand binary, and those that do not.

#### Donaldson Tan

• Editor, New Asia Republic
• Retired Staff
• Sr. Member
• Posts: 3177
• Mole Snacks: +261/-13
• Gender:
##### Re: Need help with Momentum transport in a converging nozzle..where do i start?
« Reply #2 on: September 10, 2006, 11:30:57 AM »
First, always know your assumptions.

The typical assumption for converging nozzle flows is that it is isoentropic:
1. No friction. (reversible)
2. The fluid flows so fast that there is negligible heat transfer. (adiabatic)

On top of the usual mass balance, you can perform an energy and entropy balance.
"Say you're in a [chemical] plant and there's a snake on the floor. What are you going to do? Call a consultant? Get a meeting together to talk about which color is the snake? Employees should do one thing: walk over there and you step on the friggin� snake." - Jean-Pierre Garnier, CEO of Glaxosmithkline, June 2006