What does "Thermoosmosis" mean?

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Thermoosmosis is a process where a fluid moves because of a difference in temperature. This movement can happen in a special setup, like a thin tube, where one part of the fluid is warmer than another.

In a specific situation known as a near-critical binary fluid mixture, there are two types of fluid that can mix together. When one type of fluid sticks more to the walls of the tube, it can affect how the fluid flows.

When there is a temperature difference in this setup, the fluid will tend to move toward the colder area or away from it, depending on how the fluids are arranged and which one sticks to the wall. This means that the direction the fluid flows can be predictable based on the temperature difference.

Overall, thermoosmosis is an interesting way that heat can cause liquid to flow and it can have various applications in science and engineering.