Calculating Stream Function of Incompressible Fluid from Velocity

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SUMMARY

The discussion focuses on calculating the stream function for an incompressible fluid given the velocity vector \(\vec{v} = (v_x, v_y, 0)\). It establishes that the stream function \(\phi\) is related to the velocity components through the equations \(\frac{\partial \phi}{\partial x} = -v_y\) and \(\frac{\partial \phi}{\partial y} = v_x\). The participants emphasize the importance of these relationships in fluid dynamics and provide insights into the mathematical derivation necessary for practical applications.

PREREQUISITES
  • Understanding of fluid dynamics principles
  • Familiarity with vector calculus
  • Knowledge of partial derivatives
  • Basic concepts of incompressible flow
NEXT STEPS
  • Study the derivation of the stream function from the Navier-Stokes equations
  • Learn about the application of the continuity equation in incompressible flows
  • Explore computational fluid dynamics (CFD) tools for simulating fluid flow
  • Investigate the use of stream functions in vortex dynamics
USEFUL FOR

Fluid dynamics engineers, researchers in applied mathematics, and students studying incompressible fluid flow will benefit from this discussion.

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Hi everybody, I have been looking for a way to calculate the stream function if I know the velocity \vec{v}=(vx,vy,0) of a bidimentional flux.
From the formula given for \vec{v}, I know it is an incompressible fluid.
 
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Well, the derivatives of the stream function \phi are generally related to the velocity components as...?
 

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