Results are presented from an experiment on capillary rise of water in inclined small-bore (ϕ= 1.92 mm) cylindrical tubes. A series of thick-walled tubes with different lengths and taken from the same glass rod was used, and the angle of inclination towards the vertical, α, was varied ...
of liquids. The molecules of liquid stick to the sides of a narrow tube or the tiny channels in a towel, and other molecules stick to the first molecules, so the liquid crawls upwards. Some people think that this capillary action is responsible for moving water from the roots to the ...
What is the anticipated capillary rise in a tube with a diameter of 1 cm under standard conditions? Chapter 6 Soil water, temperature, and gas relations Unsaturated flow is frequently characterized by the capillary rise equation. Chapter 8 Water and gas transport The apparatus used for capillary ...
摘要: Scitation is the online home of leading journals and conference proceedings from AIP Publishing and AIP Member Societies关键词: ST-JOHNS-RIVER-WATER-MANAGEMENT-DISTRICT WETLANDS MANAGEMENT AND STORAGE OF SURFACE WATERS DOI: 10.1119/1.16491 被引量: 1 ...
Results are presented from an experiment on capillary rise of water in inclined small-bore (Φ= 1.92 mm) cylindrical tubes. A series of thick-walled tubes with different lengths and taken from the same glass rod was used, and the angle of inclination towards the vertical, α, was varied ...
Figure 1- illustrates capillary rise (or depression) in a tube Where: h = height of capillary rise (or depression) σ = surface tension θ = wetting angle (see Fig. 1-2) γ = specific weight of liquid r = radius of tube If the tube is clean, θ is 0° for water and about 140...
The rise or fall of the surface of a liquid within a very narrow tube due to a difference in cohesive force within the molecules of liquid and the adhesive force between the liquid and the wall of the tube is known as capillary action....
capillary attraction───毛细(管)引力;毛细作用;毛细吸力 双语使用场景 Of all components of water balance in farmlands, evapotranspiration,capillary risefrom a water table and deep percolation are difficult to determine.───在农田水分平衡中,较难测定的要素有农田蒸腾蒸发量、地下水毛细上升量和土壤水渗...
The mathematical models for the capillary-driven flow of fluids in tubes typically assume a static contact angle at the fluid–air contact line on the tube walls. However, the dynamic evolution of the fluid–air interface is an important feature during capillary rise. Furthermore, inertial effects...
1. The oil in the lamp wick rises due to the capillary action of threads in the wick. 2. The effect of a towel absorbing the moisture from the body is due to the capillary action of the cotton in the towel. 3. Water is retained in a piece of sponge due to capillarity. ...