Internal wave pressure, velocity, and energy flux from density perturbations

  title={Internal wave pressure, velocity, and energy flux from density perturbations},
  author={Michael R. Allshouse and Frank M. Lee and Philip J. Morrison and Harry L. Swinney},
  journal={arXiv: Fluid Dynamics},
Determination of energy transport is crucial for understanding the energy budget and fluid circulation in density varying fluids such as the ocean and the atmosphere. However, it is rarely possible to determine the energy flux field $\mathbf{J} = p \mathbf{u}$, which requires simultaneous measurements of the pressure and velocity perturbation fields, $p$ and $\mathbf{u}$. We present a method for obtaining the instantaneous $\mathbf{J}(x,z,t)$ from density perturbations alone: a Green's function… 

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