Hi Malverin. Welcome to Physics Forums.Malverin said:Is there any data about such measurements?
I think, there has to be a pressure gradient in a floating liquid sphere due to surface tension.
The liquid pressure gradient in zero gravity is the change in pressure per unit distance in a liquid that is experiencing weightlessness or zero gravity. It occurs when the force of gravity is no longer acting on the liquid, causing it to spread evenly.
In zero gravity, there is no force of gravity pulling the liquid downwards, so the pressure gradient is more uniform and there is no difference in pressure at different depths. On Earth, the force of gravity causes a higher pressure at greater depths due to the weight of the liquid above.
The two main factors that affect liquid pressure gradient in zero gravity are the density of the liquid and the surface tension. The denser the liquid, the greater the pressure gradient, and the higher the surface tension, the more uniform the pressure gradient will be.
In zero gravity, there is less resistance to fluid flow due to the lack of gravity. This can result in the flow of liquids being more turbulent and unpredictable. It can also make it difficult to control the direction and speed of fluid flow.
Understanding liquid pressure gradient in zero gravity is important for various applications, such as designing spacecrafts and space habitats, developing more efficient fluid systems for use in space, and studying the behavior of liquids in microgravity environments. It can also help in understanding the effects of zero gravity on the human body and developing countermeasures for astronauts.