Related Experiment Video
Updated: Feb 10, 2026
10:26
The Infiltration-centrifugation Technique for Extraction of Apoplastic Fluid from Plant Leaves Using Phaseolus vulgaris as an Example
Published on: December 19, 2014
38.7K
Drainage from a Fluid-Handling Component Due to Centrifugal Acceleration
Koray Sekeroglu1, C W Extrand1, David A Burdge1
1CPC , 1001 Westgate Drive , St. Paul , Minnesota 55114 , United States.
Langmuir : the ACS Journal of Surfaces and Colloids
|May 16, 2018
Summary
Liquid drainage from plastic tubes was studied. Drainage onset depended on liquid properties and tube diameter, not tube length, and was explained by critical centrifugal acceleration.
Area of Science:
- Fluid dynamics
- Materials science
Background:
- Understanding liquid behavior in confined spaces is crucial for various applications.
- Plastic tubing is widely used in medical devices, chemical processing, and fluid transfer systems.
Purpose of the Study:
- To investigate the factors influencing the onset of liquid drainage from horizontally oriented plastic tubes.
- To determine the relationship between drainage and centrifugal forces.
Main Methods:
- Plastic tubes were filled with liquids, plugged at one end, and oriented horizontally.
- Tubes were attached to a rotor and spun at increasing speeds to determine the drainage onset point.
Main Results:
- Drainage resistance was independent of tube length.
- Drainage onset was influenced by liquid surface tension, density, and tube diameter and wettability.
- A critical centrifugal acceleration was identified as the key factor for drainage onset.
Conclusions:
- The onset of liquid drainage from plastic tubes under rotation is governed by a critical centrifugal acceleration.
- Tube length is not a significant factor, while liquid and tube material properties play a crucial role.
More Related Videos
Related Concept Videos
01:17Accelerating Fluids
2.3K
When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
2.3K
01:05Centrifugation
8.2K
Centrifugation is a separation technique based on differences in density or size. It is commonly used to separate solids from aqueous interferents. During centrifugation, the sample is placed in centrifugation tubes and spun at high angular velocity, which allows centrifugal force to act differentially on the different densities or masses of the components. After spinning, the supernatant liquid is decanted. Depending on the specific application, either the pellet or the supernatant is retained...
8.2K
01:17Accelerators
292
Accelerators in concrete serve as admixtures to speed up the hardening process, enabling the concrete to achieve early strength faster. Although accelerators do not necessarily impact the time it takes concrete to set, they reduce this time in practice. A common accelerator is calcium chloride, which is particularly useful for hastening early strength development in cold weather or for rapid repair jobs that require quick heat generation after mixing.
The effectiveness of calcium chloride can...
The effectiveness of calcium chloride can...
292
01:02Sample Handling
2.7K
Transportation of samples from the collection point to the laboratory, as well as storage and preservation techniques, are crucial for maintaining sample integrity and ensuring accurate and reliable test results.
Samples should be transported carefully from collection points to the laboratory. They should be properly sealed and clearly labeled to prevent cross-contamination. To preserve the sample integrity, optimal temperature conditions during transport are essential. This could involve using...
Samples should be transported carefully from collection points to the laboratory. They should be properly sealed and clearly labeled to prevent cross-contamination. To preserve the sample integrity, optimal temperature conditions during transport are essential. This could involve using...
2.7K
01:34The Fluid Mosaic Model
179.2K
The fluid mosaic model was first proposed as a visual representation of research observations. The model comprises the composition and dynamics of membranes and serves as a foundation for future membrane-related studies. The model depicts the structure of the plasma membrane with a variety of components, which include phospholipids, proteins, and carbohydrates. These integral molecules are loosely bound, defining the cell’s border and providing fluidity for optimal function.
179.2K
01:06Centrifugal Force
4.2K
Pseudo forces, or fictitious forces, appear to act on an object in motion in a rotating frame of reference with respect to an inertial reference frame. These forces are not real forces but rather mathematical constructs and are introduced to simplify calculations in a non-inertial frame while using Newton's laws of motion. Common examples of pseudo forces include centrifugal, Coriolis, and Euler forces. These forces are essential in fields such as mechanics, astrophysics, and fluid...
4.2K