Which equation describes surface waves in a fluid on the same scale?

  • Context: Graduate 
  • Thread starter Thread starter hunt_mat
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on identifying the equation that describes surface waves in a fluid when the x and y dimensions are of the same scale. The Kadomtsev-Petviashvilli (KP) equation is mentioned as a result of the "thin wave" approximation. Participants seek clarification on the appropriate equation for scenarios where the wave dimensions are isotropic. The consensus indicates that the relevant equations are likely the two-dimensional nonlinear Schrödinger equation or the full set of Navier-Stokes equations under specific conditions.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with the Kadomtsev-Petviashvilli equation
  • Knowledge of nonlinear wave equations
  • Basic grasp of the Navier-Stokes equations
NEXT STEPS
  • Research the two-dimensional nonlinear Schrödinger equation
  • Study the full set of Navier-Stokes equations in detail
  • Explore applications of the Kadomtsev-Petviashvilli equation in fluid dynamics
  • Investigate the implications of isotropic wave behavior in surface waves
USEFUL FOR

Researchers in fluid dynamics, physicists studying wave phenomena, and engineers working on fluid-related applications will benefit from this discussion.

hunt_mat
Homework Helper
Messages
1,816
Reaction score
33
TL;DR
Trying to get the name of an equation for free surface flow.
When considering surface waves in a fluid in 3D, there are a number of assumptions the easiest one is to take the "thin wave" approximation which yields a Kadomtsev-Petviashvilli equation. I'm looking for the name of the equation(or set of equations) for when the x and y are of the same scale. Does anyone know what it's called?
 
  • Like
Likes   Reactions: Delta2

Similar threads

  • · Replies 18 ·
Replies
18
Views
2K
  • · Replies 5 ·
Replies
5
Views
1K
  • · Replies 10 ·
Replies
10
Views
945
  • · Replies 9 ·
Replies
9
Views
2K
Replies
0
Views
2K
  • · Replies 6 ·
Replies
6
Views
1K
  • · Replies 32 ·
2
Replies
32
Views
2K
  • · Replies 10 ·
Replies
10
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 21 ·
Replies
21
Views
2K