The pressure signals of figure 2 have been superimposed on each other (taking into account the difference in hydrostatic pressure) and are shown in part.
The hydrostatic approximation leads to an underestimation of both the maximum growth rate and the wavenumber at which it occurs.
Further, we assume that the waves are sufficiently long for the hydrostatic equation to be valid.
It is interesting to note that the pressure is still hydrostatic but the vertical velocity cannot be neglected, as commonly assumed.
Thus, any departure from hydrostatic balance gives rise to flow, with effectively immediate adjustment of velocity profile across the narrow gap.
In a homogeneous fluid at rest, ver tical momentum conservation requires that the fluid be in hydrostatic balance.
We initially input turbulent velocity into the magnetized plate-shaped cloud which is in hydrostatic equilibrium between thermal pressure and self-gravity.
Besides arithmetical works, he wrote a treatise consisting in a collection of problems about weighing with hydrostatic a and normal balances.
