Hi every one I have a terrible problem can anyone help me
I am looking for the solution for this PDE
(d2P/dx2) +(d2P/dy2) + (d2P/dz2)= (dP/dt)

Question

Hi every one I have a terrible problem can anyone help me
I am looking for the solution for this PDE
(d2P/dx2) +(d2P/dy2) + (d2P/dz2)= (dP/dt)

anonymous · Answer

dp/dx = const* q    where q is the flow rate i.e.. changing with time

anonymous · Answer

Ok dear ,, find the attach file

anonymous · Answer

@jdoe0001 please

anonymous · Answer

@tkhunny

tkhunny · Answer

How would you solve this one?  $\dfrac{d^{2}P}{dz^{2}} = \dfrac{dP}{dt}$?

anonymous · Answer

I can slove it using  la place ,,, but here I think we have to used fouier cosine

anonymous · Answer

also I think we have to solve each direction individual then combine the solution

anonymous · Answer

@Loser66  i havent done PDE just PD...hope you get help??

anonymous · Answer

@ tkunny  ??

anonymous · Answer

@ tkhunny ...

loser66 · Answer

I think he is offline. I sent message to someone else. Hopefully they can help you when they came online