PDE in comsol 4.0a

Thread index  |  Previous thread  |  Next thread  |  Start a new discussion

RSS FeedRSS feed   |   Email notificationsTurn on email notifications   |   1 Reply   Last post: October 15, 2011 1:20pm UTC
Richa Kumari

Richa Kumari

July 20, 2011 1:58pm UTC

PDE in comsol 4.0a

i am gettin error in my simulation. it may be because the coefficients of PDE general form that i have taken is wrong. i hav attached my work too. please look into it and let me identify the errors.

as per given info:
four differential eqn :
1). one non linear (pde)

CmVt=(r/2p)Vxx+gNa*m^3*h(VNa-V)+gKn^4(Vk-V)+gL(VL-V)

Please separate the above into conservative flux, source term, damping or mass coefficient, mass coefficient


2).3 linear (ode)

dw/dt=Aw(1-w)-Bw
Aw and Bw are variables.
where w is m,n,h
in which part should i declare these ode's

please check dat the procedures which i hav followed is correct or not.

3) In V 3.5a we hav UMFPACK (direct solver but i could'nt locate it in v 4.0a



Attachments:   new model.mph  

Reply  |  Reply with Quote  |  Send private message  |  Report Abuse

Muhammad Mohsin Rehman

Muhammad Mohsin Rehman

October 15, 2011 1:20pm UTC in response to Richa Kumari

Re: PDE in comsol 4.0a

Hi Miss Richa,
Can you please let me know how can I introduce my own PDEs in COMSOL 4.0?
In addition, how can I see the equations being used for any model in COMSOL 4.0?

Many thanks in advance.

Reply  |  Reply with Quote  |  Send private message  |  Report Abuse


Rules and guidelines