Explain the variation of pressure in a vertically accelerating fluid...if you are hero then answer this..
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Answer:
Pressure within a liquid depends only on the density of the liquid, the acceleration due to gravity, and the depth within the liquid. The pressure exerted by such a static liquid increases linearly with increasing depth.
Pressure variation refers to the variance in pressure between the two positions of the fluid flowing in the particular channel. It depends on the frictional shear force and the velocity of fluid flowing inside the channel. ... The variation of pressure is independent of total mass or total volume of the fluid.
Pressure difference depends on the vertical distance 'h' between the points (1 and 2) mass density of the fluid ρ and acceleration due to gravity 'g'.
Pressure is defined in simplest terms as force per unit area. However, when dealing with pressures exerted by gases and liquids, it is most convenient to approach pressure as a measure of energy per unit volume by means of the definition of work (W = F·d). The derivation of pressure as a measure of energy per unit volume from its definition as force per unit area is given in . Since, for gases and liquids, the force acting on a system contributing to pressure does not act on a specific point or particular surface, but rather as a distribution of force, analyzing pressure as a measure of energy per unit volume is more appropriate. For liquids and gases at rest, the pressure of the liquid or gas at any point within the medium is called the hydrostatic pressure. At any such point within a medium, the pressure is the same in all directions, as if the pressure was not the same in all directions, the fluid, whether it is a gas or liquid, would not be static. Note that the following discussion and expressions pertain only to incompressible fluids at static equilibrium.