| 21. | In this case the Navier Stokes equations reduce to the vorticity-transport equations.
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| 22. | Using this in the vorticity transport equation, Rayleigh's equation is obtained.
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| 23. | But attributing causation to the vorticity in this way is not consistent with the physics.
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| 24. | Curl to find an equation for vorticity.
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| 25. | As usual for the vorticity dynamics, the pressure drops out of the vorticity equation.
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| 26. | As usual for the vorticity dynamics, the pressure drops out of the vorticity equation.
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| 27. | The first assumption will be an initial potential vorticity anomaly somewhere in the upper troposphere.
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| 28. | The flow field associated with the trochoidal wave is not irrotational : it has vorticity.
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| 29. | Instability is caused when the vortex tube, the line of concentrated vorticity, is displaced.
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| 30. | The enstrophy can be described as the integral of the square of the vorticity \ omega,
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