2. Reduce the wave equation Un = c (urx + Uyy + Uzz) to the Laplace equation Uxx + Uyy + Uzz + urT = 0 by letting T = ict where i = V-1. Obtain the solution of the wave equa- tion in cylindrical coordinates via the solution of the Laplace equation. Assume that u (r, 0, z, T) is independent of z.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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2. Reduce the wave equation
Un
c“ (uxx + Uyy + Uzz)
to the Laplace equation
Ugx + Uyy + Uzz + U7T = 0
by letting T = ict where i = V–1. Obtain the solution of the wave equa-
tion in cylindrical coordinates via the solution of the Laplace equation.
Assume that u (r, 0, z, 7) is independent of z.
Transcribed Image Text:2. Reduce the wave equation Un c“ (uxx + Uyy + Uzz) to the Laplace equation Ugx + Uyy + Uzz + U7T = 0 by letting T = ict where i = V–1. Obtain the solution of the wave equa- tion in cylindrical coordinates via the solution of the Laplace equation. Assume that u (r, 0, z, 7) is independent of z.
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