Related Experiment Video
Updated: Jul 17, 2025
11:20
Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry
Published on: January 9, 2014
6.6K
Hysteretic Behavior of Capillary Bridges between Flat Plates
Moyosore S Odunsi1,2, Jeffrey F Morris2,3, Mark D Shattuck1,2,4
1The City University of New York Graduate Center, Department of Physics, New York, New York 10016-4309, United States.
Langmuir : the ACS Journal of Surfaces and Colloids
|September 6, 2023
Summary
Contact angle hysteresis governs capillary bridge evolution between plates. A new model incorporating resistive forces accurately predicts bridge shape changes during compression and stretching, even with nonparallel plates.
Area of Science:
- Fluid dynamics
- Surface science
- Materials science
Background:
- Capillary bridges are crucial in various natural and industrial processes.
- Understanding their dynamic evolution under mechanical stress is essential.
- Previous models often simplified contact line behavior.
Purpose of the Study:
- To investigate the dynamic evolution of capillary bridges between plates.
- To model the influence of contact angle hysteresis on bridge shape.
- To explore the effects of plate geometry, including nonparallelism.
Main Methods:
- Experimental study of capillary bridges undergoing compression and stretching cycles.
- Computational simulations to model bridge shape evolution.
- Development of a model combining contact angle hysteresis with energy minimization.
Main Results:
- Contact angle hysteresis was identified as the primary determinant of capillary bridge shape.
- The developed model accurately captured bridge evolution, including complete and partial contact line pinning.
- Asymmetric bridge shapes due to nonparallel plates led to measurable center of mass movement, explained by hysteresis.
Conclusions:
- Contact angle hysteresis is a key factor in capillary bridge dynamics.
- The new model provides a more accurate prediction of capillary bridge behavior.
- Plate misalignment significantly impacts capillary bridge shape and dynamics.
Related Concept Videos
01:02Fluid Pressure over Flat Plate of Variable Width
1.8K
When a flat plate is submerged in a fluid, the fluid exerts pressure on the plate. This pressure can lead to many different phenomena, including drag and buoyancy. To understand the behavior of the fluid over a flat plate of variable width, it is essential to analyze the distribution of the pressure exerted.
The pressure distribution on the plate can be calculated by determining the force that acts on a differential area strip of the plate. Thus, the magnitude of the force is equal to the...
The pressure distribution on the plate can be calculated by determining the force that acts on a differential area strip of the plate. Thus, the magnitude of the force is equal to the...
1.8K
01:17Steady, Laminar Flow Between Parallel Plates
231
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
231
01:05Fluid Pressure over Flat Plate of Constant Width
2.1K
When a body is submerged in water, it experiences fluid pressure acting normal on its surface and distributed over its area. For better design structures, it is crucial to determine the magnitude and location of the resultant force acting on the surface. In the case of a rectangular plate of constant width submerged in water, the pressure increases with depth, resulting in a linearly varying trapezoidal pressure distribution from the upper to the lower edge of the plate.
The resultant force...
The resultant force...
2.1K
01:12Fluid Pressure over Curved Plate of Constant Width
1.6K
When a curved plate of constant width is submerged in a liquid, the pressure acting normal to the plate varies continuously both in magnitude and direction. Calculating the magnitude and location of the resultant force at a point is often challenging for such cases. One of the methods to determine the resultant force and its location involves separately calculating the horizontal and vertical components of the resultant force. This complex calculation can be simplified by representing the...
1.6K
01:19Capillarity in Fluid
249
Capillarity describes the movement of liquid in small spaces without external forces acting on it. The capillarity is driven by surface tension and adhesive interactions between the liquid and surrounding solid surfaces. This effect is often seen in narrow tubes, porous materials, and fine particles.
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
249
01:18Rise of Liquid in a Capillary Tube
1.9K
When very thin cylindrical tubes, called capillaries, are dipped in a liquid, the liquid rises or falls in the tube compared to the surrounding liquid. This phenomenon is called capillary action. Capillary action occurs due to the combination of two opposing forces: the cohesive forces of the liquid, which cause it to stick to itself and form a rounded shape, and the adhesive forces between the liquid and the walls of the container, which cause the liquid to be attracted to the container walls.
1.9K