Related Experiment Video
Updated: Jan 23, 2026
13:57
Preparation and Friction Force Microscopy Measurements of Immiscible, Opposing Polymer Brushes
Published on: December 24, 2014
14.3K
Mesoscale modelling of miscible and immiscible multicomponent fluids
Z C Zhao1, R J Moat1, R S Qin2
1School of Engineering & Innovation, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK.
Scientific Reports
|June 6, 2019
Summary
A new mesoscopic simulation method combines Dissipative Particle Dynamics (DPD), Smoothed Particle Hydrodynamics (SPH), and Computational Thermodynamics (CT) to model fluid behavior. This approach accurately predicts fluid dynamics and material processing phenomena.
Area of Science:
- Multiphase flow simulation
- Computational fluid dynamics
- Materials processing
Background:
- Accurate simulation of fluid behavior is crucial for materials processing.
- Existing methods may struggle with complex interactions in multicomponent systems.
Purpose of the Study:
- To develop an integrated mesoscopic simulation method.
- To investigate the kinetic behaviors of miscible and immiscible fluids.
- To predict the non-equilibrium evolution of engineering fluids.
Main Methods:
- Integration of Dissipative Particle Dynamics (DPD), Smoothed Particle Hydrodynamics (SPH), and Computational Thermodynamics (CT).
- Derivation of inter-particle interaction forces from system free energy.
- Determination of component diffusivity using chemical potential in non-ideal solutions.
Main Results:
- The developed method accurately predicts fluid kinetic behaviors.
- It captures the effects of convection, diffusion, and microscopic interactions.
- Convincing predictions were made for non-equilibrium evolution of engineering fluids.
Conclusions:
- The integrated mesoscopic simulation method offers a powerful tool for studying fluid dynamics.
- It shows potential for simulating complex phenomena in materials processing.
- This approach enhances understanding of fluid behavior in various engineering applications.
Related Concept Videos
02:34Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility
51.1K
Intermolecular forces are attractive forces that exist between molecules. They dictate several bulk properties, such as melting points, boiling points, and solubilities (miscibilities) of substances. Molar mass, molecular shape, and polarity affect the strength of different intermolecular forces, which influence the magnitude of physical properties across a family of molecules.
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
51.1K
01:34The Fluid Mosaic Model
177.4K
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.
177.4K
01:19Fluid Mosaic Model
15.9K
Scientists identified the plasma membrane in the 1890s and its principal chemical components (lipids and proteins) by 1915. The model for plasma membrane structure, proposed in 1935 by Hugh Davson and James Danielli, was the first model to be widely accepted in the scientific community. The model was based on the plasma membrane's "railroad track" appearance in early electron micrographs. Davson and Danielli theorized that the plasma membrane's structure resembled a sandwich...
15.9K
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
01:21Cerebrospinal Fluid
5.5K
Cerebrospinal fluid (CSF) is a colorless liquid that flows around the brain and the spinal cord, playing a vital role in the protection, support, and overall function of the central nervous system (CNS). CSF production, circulation, and absorption are tightly regulated processes essential for the brain and spinal cord to function properly.
CSF Production
CSF is produced mainly in the choroid plexus, a network of capillaries and ependymal cells located within the ventricular system of the brain....
CSF Production
CSF is produced mainly in the choroid plexus, a network of capillaries and ependymal cells located within the ventricular system of the brain....
5.5K
01:14Fluid Pressure
1.2K
In mechanical engineering, fluid pressure plays a critical role in designing systems that utilize liquid flow, such as hydraulic systems, pumps, and valves. When designing these systems, engineers must ensure they can withstand the forces created by fluid pressure to avoid damage or failure.
According to Pascal's law, a fluid at rest will generate equal pressure in all directions. This pressure is measured as a force per unit area, and its magnitude depends on the fluid's specific...
According to Pascal's law, a fluid at rest will generate equal pressure in all directions. This pressure is measured as a force per unit area, and its magnitude depends on the fluid's specific...
1.2K