Capillary action (sometimes called capillarity, capillary motion, capillary rise, capillary effect, or wicking) is the process of a liquid flowing in a narrow space without the assistance of external forces like gravity.

2025年1月10日 · capillarity, rise or depression of a liquid in a small passage such as a tube of small cross-sectional area, like the spaces between the fibres of a towel or the openings in a porous material. Capillarity is not limited to the vertical direction.

2022年2月27日 · Capillary action is fluid flow through a narrow tube or space from surface tension, cohesion, and adhesion. For example, if you place a thin tube into water, the water flows up the the tube. Other names for the phenomenon are capillarity, capillary motion, and wicking. Capillary action does not require the force of gravity.

Capillarity is the ability of a liquid to move through a second liquid due to attraction, and is one of the fundamental physical properties of all fluids. It can be defined as the rate at which liquids move across a surface (wetted or not) or between two surfaces.

2023年7月28日 · Capillary action is a phenomenon in which liquid flows through a narrow tube without the assistance of any force. It refers to the ascension of liquid through a capillary tube due to forces of adhesion and cohesion and, typically, against gravity. Capillary action occurs when the force of adhesion is greater than the force of cohesion.

Capillary action is the resultant of intermolecular attraction between the molecules of water and the adhesive force in between the walls of the capillary and the liquid. What Is Capillary Action? We can define capillary action as a phenomenon where the ascension of liquids through a tube or cylinder takes place.

: the property or state of being capillary. : the action by which the surface of a liquid where it is in contact with a solid (as in a capillary tube) is elevated or depressed depending on the relative …

Capillarity is the action by which pores in a solid transport liquid on contact, so that tissue fluids transfer from the wet end to the dry end. The kinetics of the fluid transport are governed by the surface tension of the liquid and the cosine of the contact angle.

2023年1月30日 · Capillary action helps us naturally by pumping out tear fluid in the eye. This process cleanses the eye and clears all of the dust and particles that are around the ducts of the eye. To generate energy: A possible use for capillary action is as a source of renewable energy.

Capillarity - or capillary action - is the ability of a narrow tube to draw a liquid upwards against the force of gravity. The height of liquid in a tube due to capillarity can be calculated h = 2 σ cos θ / (ρ g r) (1)