Applying separation of variables and boundary conditions lead to a solution of the form: u(x, t) = > Ane-n²t cos(nx), ,-n², n=0 Continue from here to solve the temperature u(x, t). (Hint: apply half angle formula)

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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ди
a?u
9.
In order to solve the heat equation
for 0<x<T and t> 0,
at
ax2
with boundary conditions and initial condition:
du|
au|
= 0 for t> 0
axlx=0
ax
u(x,0) = 2sin²(x) for 0<x<n
Applying separation of variables and boundary conditions lead to a solution of the form:
00
u(x, t) = >.
Ane-n²t,
"cos(nx),
n=0
Continue from here to solve the temperature u(x, t).
(Hint: apply half angle formula)
II
Transcribed Image Text:ди a?u 9. In order to solve the heat equation for 0<x<T and t> 0, at ax2 with boundary conditions and initial condition: du| au| = 0 for t> 0 axlx=0 ax u(x,0) = 2sin²(x) for 0<x<n Applying separation of variables and boundary conditions lead to a solution of the form: 00 u(x, t) = >. Ane-n²t, "cos(nx), n=0 Continue from here to solve the temperature u(x, t). (Hint: apply half angle formula) II
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