Given: The given Laplace equation is = 0,0 < x < a, 0 < y < b and the given boundary conditions are o = 0, = 0, u (x, 0) = x and u (x, b) = 0.
Given: The given Laplace equation is = 0,0 < x < a, 0 < y < b and the given boundary conditions are o = 0, = 0, u (x, 0) = x and u (x, b) = 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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I don't understand why u(x,y)=u0(x,y)+u1(x,y)+u2(x,y). I also don't understand why f(x)=x. Can you please explain it to me? Thank you

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In Problems 1-10 solve Laplace's equation (1) for a rectangular plate subject to the given boundary conditions. 4. à u d x | x = 0 = 0, d ud x|x = a = 0...
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Given:
Feb 18, 2021 at
11-18 P..pnglmage
The given Laplace equation is
+
= 0,0 < x < a, 0 < y < b and the
dx2
given boundary conditions are
6hjil39_processed
jpeg
ди
ar -0 = 0, = 0, u (x, 0) = x and u (x, b) = 0.
Edited
dx lx=0
dx Ix=a
6EEO...eglmage
Calculation:
Edited -
SA4.eglmage
The given Laplace equation for rectangular plate is,
Edited -
= 0
ду?
06C9...eglmage
dx2
Consider the equation,
и (х, у) 3 ио (х, у) + иј (х, у) + и2 (х, у) (1)
X GET 10 FREE QUESTIONS
Separate the variables,
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X"
Y"
1and
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Hw 2 - pchandr4@binghamton.edu - Binghamton University Mail
In Problems 1-10 solve Laplace's equation (1) for a rectangular plate subject to the given boundary conditions. 4. à u d x | x = 0 = 0, d ud x|x = a = 0...
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Substitute the value of X (x) from equation (6) and the value of Y (y) from
equation (8) in equation (4),
Feb 18, 2021 at
11-18 P..pnglmage
ио (х, у) — с2C3 (у —
-b)
Rewrite the term c2c3 = Ao in the above equation,
6hjil39_processed
jpeg
Edited
6EEO...eglmage
ио (х, у) %3D
Ao (у — b) (9)
Edited -
At boundary condition u (x, 0) = x,
SA4.eglmage
Substitute uo (x, 0) = ƒ (x) and f (x)
= x in equation (9),
Edited -
06C9...eglmage
-bAo =
a
a
A0 = -
2b
Substitute the value of Ao in equation (9),
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ио (х, у) %3D , (6 — у) (10)
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