6. A thin homogeneous metal bar of length 20cm. and made of material with thermal diffusivity 5cmls has insulated ends and lateral sides. The bar has initial temperature in (C°) given by u( x, 0) = 10+ 4x 0

Elementary Geometry For College Students, 7e
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ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter9: Surfaces And Solids
Section9.3: Cylinders And Cones
Problem 6E: Suppose that r=12 cm and h=15 cm in the right circular cylinder. Find the exact and approximate a...
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6. A thin homogeneous metal bar of length 20cm. and made of material with
thermal diffusivity 5cm /s has insulated ends and lateral sides. The bar has
initial temperature in (Cº) given by
u( x, 0) = 10+ 4x 0 <x< 10
u(x, 0) = 90 – 4x 10 < x< 20
%3D
(a) Model an initial-boundary value problem [IBVP] of the heat equation
from the above statement.
(b) Use separation of variables to find the solution of the IBVP obtained in
part (a)
(c) What is lim t → o u(x, t)?Explain it physically.
Transcribed Image Text:6. A thin homogeneous metal bar of length 20cm. and made of material with thermal diffusivity 5cm /s has insulated ends and lateral sides. The bar has initial temperature in (Cº) given by u( x, 0) = 10+ 4x 0 <x< 10 u(x, 0) = 90 – 4x 10 < x< 20 %3D (a) Model an initial-boundary value problem [IBVP] of the heat equation from the above statement. (b) Use separation of variables to find the solution of the IBVP obtained in part (a) (c) What is lim t → o u(x, t)?Explain it physically.
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