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If we consider a fluid without viscosity and turbulence (laminar flow), we can assume that energy is conserved and flows with the liquid (or gas). In these cases, we obtain an equation that states that the sum of the density of kinetic energy and the density of potential energy are constant.



This allows us to calculate how velocity evolves as a function of position as long as the existing pressure or any force field is known.



The only problem is that most media have significant viscosity and therefore tend not to have turbulence or it is negligible, and the flow is intrinsically turbulent. Therefore, the application of Bernoulli's law in this sense is restricted, or rather, it is a first approximation.

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ID:(684, 'ky')

Description

If we consider a fluid without viscosity and turbulence (laminar flow), we can assume that energy is conserved and flows with the liquid (or gas). In these cases, we obtain an equation that states that the sum of the density of kinetic energy and the density of potential energy are constant. This allows us to calculate how velocity evolves as a function of position as long as the existing pressure or any force field is known. The only problem is that most media have significant viscosity and therefore tend not to have turbulence or it is negligible, and the flow is intrinsically turbulent. Therefore, the application of Bernoulli's law in this sense is restricted, or rather, it is a first approximation.

ID:(684, 0)