Solving Shallow Water Equations with Kelvin Wave Solutions

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SUMMARY

The discussion focuses on solving the shallow water equations using Kelvin wave solutions, specifically addressing wave motion in coastal areas and tidal motions globally. The equations involve the local height of fluid, denoted as eta, and the wave speed is defined as (gh)^(1/2). Participants emphasize the need to differentiate and substitute the provided formulas into the shallow water equations to demonstrate that they satisfy the conditions for Kelvin waves.

PREREQUISITES
  • Understanding of shallow water equations
  • Knowledge of wave motion and fluid dynamics
  • Familiarity with differentiation techniques
  • Basic concepts of Kelvin waves
NEXT STEPS
  • Study the derivation of shallow water equations
  • Explore the properties of Kelvin waves in fluid dynamics
  • Learn about the impact of Earth's spherical geometry on wave motion
  • Investigate numerical methods for solving differential equations in fluid dynamics
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Students and researchers in fluid dynamics, oceanographers, and anyone studying wave motion in coastal and global contexts will benefit from this discussion.

groovayness
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someone please help

The shallow water equations are used to describe, among other things, wave motion in coastal areas, and tidal motions (even across the entire globe, when suitably modified to account for the Earth's spherical geometry). As discussed in class these equations are
(attachment 1)


Eta is the local height of fluid above the equilibrium depth, h.

Show that the expressions for eta, u, and v, below, solve the shallow water equations when the wave speed, omega/k, is (gh)1/2. This is called a Kelvin wave.
(attachment 2)
 

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Welcome to PF.
Looks like you just have to differentiate and plug the given formulas into the given equations. Where is the problem?
 

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