# Basic Fluid Mechanics question

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 June 9, 2006, 00:39 Basic Fluid Mechanics question #1 Yang Cao Guest   Posts: n/a My Fluid Mechanics teacher once told me, there are 2 types of friction factors (say, in connection with pipe flows). I remember, one is Darcy-Weisbachs' other one is Mannings (?). Wondering if there is a unified view (or) simply both are different ? can some learned soul clear my confusion.

 June 9, 2006, 11:20 Re: Basic Fluid Mechanics question #2 onlooker Guest   Posts: n/a THe other is Fanning. One of them is four times the other. Check a textbook.

 June 10, 2006, 02:57 Re: Basic Fluid Mechanics question #3 BASAVARAJ Guest   Posts: n/a (1) on which principle Hot Air baloon works ? & give the details of principle,with some more examples

 June 11, 2006, 23:25 Re: Basic Fluid Mechanics question #4 Kasyap Guest   Posts: n/a Dear Basavaraj, Hot air ballon works on the principle that when air becomes hot, it turns lighter and will try to go upward. This drives the balloon upward. Hoe this will help u regards Kasyap

 June 14, 2006, 16:53 Re: Basic Fluid Mechanics question #5 Anonymous Guest   Posts: n/a Read about buoyancy ...

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