help- heat equation


by chenrim
Tags: equation, heat
chenrim
chenrim is offline
#1
Jan23-12, 06:34 AM
P: 1
1 .) i added several problems which i couldnt understand the approach for solving them.
i'm kinda confused, will glad if someone would guide me.

2.) in class weve talked about and calculated . n orders(0,1,2,3) of moments, how is it to do with the heat equations? and what is the importance?

thanks

chen
Attached Thumbnails
ex.png  
Phys.Org News Partner Science news on Phys.org
Simplicity is key to co-operative robots
Chemical vapor deposition used to grow atomic layer materials on top of each other
Earliest ancestor of land herbivores discovered
fluidistic
fluidistic is offline
#2
Jan27-12, 07:10 AM
PF Gold
fluidistic's Avatar
P: 3,173
Quote Quote by chenrim View Post
1 .) i added several problems which i couldnt understand the approach for solving them.
i'm kinda confused, will glad if someone would guide me.

2.) in class weve talked about and calculated . n orders(0,1,2,3) of moments, how is it to do with the heat equations? and what is the importance?

thanks

chen
For 1), I'd try the method of "Separation of variables". In other words, you make the ansatz (or assume) that a solution to the heat equation is of the form [itex]u(x,t)=F(x)G(t)[/itex]. I suggest you to read about this method on the Internet.
2)I have no idea, never heard of such thing.


Register to reply

Related Discussions
equation measuring heat with temperature change, time and specific heat Classical Physics 7
First order ODE IVP use in Heat equation of ball with heat source. Differential Equations 1
Heat Equation Time dependant heat loss Calculus & Beyond Homework 1