# Diffusion Equation

 Register Blogs Members List Search Today's Posts Mark Forums Read June 23, 2002, 03:18 Diffusion Equation #1 izardy amiruddin Guest   Posts: n/a hi ! i have some doubt about the following equations and what is the relation amongst these equations : 1. Heat Equation 2. Diffusion Equation 3. Stoke's Problem (it is not Stoke Equation nor Stoke Theorem ) 4. Fick's First and Second Law All the equations state above have the same dimension and quite similar , quite confuse here . and what is the relation between these equation and Poisson's Equation . i've read some book and found that Poisson's Equation is used to model these equation and other several equation . I need some brief explanation here . Thanks  July 4, 2002, 08:32 Re: Diffusion Equation #2 arun Guest   Posts: n/a these above 3 equn are similar in the sense they describe the diffusive mass flux to gradient of mass (or mole fraction) which is driving force.. similarly heat flux to thermal gradient and momentum flux to velocity gradient..so the proportionality constant is diffusive coeff for mass, heat, momentum..ie all poison eq is one type of eq which is 2 order, life del squired of some variable = function of that variable..  July 4, 2002, 09:14 Re: Diffusion Equation #3 izardy amiruddin Guest   Posts: n/a thanks for the information , i just wondering where i can find journals bout this transport phenomenon , i've found some in my university library (Heat and Mass Transfer Journal) , did u have any idea where i can find this similiar journal in the internet? Thread Tools Search this Thread Show Printable Version Email this Page Search this Thread: Advanced Search Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is OffTrackbacks are Off Pingbacks are On Refbacks are On Forum Rules Similar Threads Thread Thread Starter Forum Replies Last Post Mihail CFX 7 September 7, 2014 07:27 Niklas Wikstrom (Wikstrom) OpenFOAM Running, Solving & CFD 122 June 15, 2014 07:20 Lance CFX 0 April 4, 2011 12:16 Sas CFX 15 July 13, 2010 09:56 yannoush Main CFD Forum 0 August 28, 2003 04:40

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