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HOMEWORK 5: REVISITING THE BASICS WITH COMSOL
The goal of this assignment is to familiarize you with how to solve a
1D problem in COMSOL. We will revisit the topics that were covered in
homework #1 and #2. You should explore all of the menus and settings
so that you are better equipped to set up 2D and 3D problems. When
in doubt, use the “Help Desk” to seek out answers to your questions. In
addition to the “Help Desk”, use the supplementary handout for hints on
how to set up the problem.
•
Recall the followng boundary value problem that was given in home
work #1 and #2, with domain Ω = (0
, L
):
d
dx
p
A
1
du
dx
P
=
k
2
sin
(
2
πkx
L
)
A
1
=
given constant
= 0
.
1
k
=
given constant
L
= 1
u
(0) = Δ
1
=
given constant
= 0
u
(
L
) = Δ
2
=
given constant
= 1
(1)
•
Using the parametric solver in COMSOL, solve the boundary value
problem using linear equalsized elements for values of k = 1, 2, 4, 8,
16, 32. Do this for meshes of N=100 and N=1000 elements. Plot the
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 Spring '08
 ZOHDI

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