Q-2 Zero temparature ends ) Suppose that a copper rod of lenght 50 cm was placed into a reservoir with hot water at 50° C so that half of it is in the air at 20°c. At t=0, the rod is taken out and its ends are kept at constant ambient temparature of 20° c. Let us denote the difference between the rod's temparature and the ambient temparature by U(x,t), where x is the distance from the left end of the rod, x=0. The U(x,t) is a solution of the initial boundary value problem: U, = « Ugx x = 1.14 With boundary conditions as U(0, t) = U(50, t) = 0 30, 0
Q-2 Zero temparature ends ) Suppose that a copper rod of lenght 50 cm was placed into a reservoir with hot water at 50° C so that half of it is in the air at 20°c. At t=0, the rod is taken out and its ends are kept at constant ambient temparature of 20° c. Let us denote the difference between the rod's temparature and the ambient temparature by U(x,t), where x is the distance from the left end of the rod, x=0. The U(x,t) is a solution of the initial boundary value problem: U, = « Ugx x = 1.14 With boundary conditions as U(0, t) = U(50, t) = 0 30, 0
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Q-2 - Zero temparature ends ) Suppose that a copper rod of lenght 50 cm was placed into a
reservoir with hot water at 50° C so that half of it is in the air at 20°C. At t=0, the rod is taken out
and its ends are kept at constant ambient temparature of 20° c. Let us denote the difference
between the rod's temparature and the ambient temparature by U(x,t), where x is the distance from
the left end of the rod, x=0. The U(xt) is a solution of the initial boundary value problem:
U, = x Uxx
x = 1.14
With boundary conditions as U(0, t) = U(50,t) = 0
30, 0<x < 25
Initial condition: U(x,0) =
lo, 25 < x < 50
Find the solution U(x,t) of the given problem.
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