Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Carrier Transport01:21

Carrier Transport

1.1K
The generation of electrical current in semiconductors is fundamentally driven by two mechanisms: drift and diffusion. These processes are essential for the functionality and performance of semiconductor-based devices.
Drift Current:
The drift of charge carriers is started by an external electric field (E). Charged particles, such as electrons and holes, experience an acceleration between collisions with lattice atoms. For electrons, this results in a drift velocity (vd) given by:
1.1K
Diffusion01:21

Diffusion

7.0K
Diffusion is a type of passive transport. In passive transport, a substance tends to move from an area of high concentration to an area of low concentration until the concentration is equal across the space. For example, take the diffusion of substances through the air. When someone opens a perfume bottle in a room filled with people, the perfume is at its highest concentration in the bottle and is at its lowest at the edges of the room. The perfume vapor will diffuse, or spread away, from the...
7.0K
Diffusion01:12

Diffusion

226.4K
Diffusion is the passive movement of substances down their concentration gradients—requiring no expenditure of cellular energy. Substances, such as molecules or ions, diffuse from an area of high concentration to an area of low concentration in the cytosol or across membranes. Eventually, the concentration will even out, with the substance moving randomly but causing no net change in concentration. Such a state is called dynamic equilibrium, which is essential for maintaining overall...
226.4K
Conduction, Convection and Radiation: Problem Solving01:20

Conduction, Convection and Radiation: Problem Solving

2.7K
There are three methods by which heat transfer can take place: conduction, convection, and radiation. Each method has unique and interesting characteristics, but all three have two things in common: they transfer heat solely because of a temperature difference; and the greater the temperature difference, the faster the heat transfer.
In order to solve a problem related to heat transfer, first of all, the situation needs to be examined to determine the type of heat transfer involved. This could...
2.7K
Passive Diffusion: Overview and Kinetics01:17

Passive Diffusion: Overview and Kinetics

1.6K
Passive diffusion is a critical process that allows small lipophilic drugs to cross the cell membrane along a concentration gradient. This mechanism's efficiency depends on four primary factors: the membrane's surface area, the drug's lipid-water partition coefficient, the concentration gradient, and the membrane's thickness.
When administered orally, drugs establish a substantial concentration gradient between the gastrointestinal (GI) lumen and the bloodstream, expediting...
1.6K
Osmosis01:30

Osmosis

12.1K
Osmosis is the movement of free water molecules through a semipermeable membrane.  The water's concentration gradient across the membrane is inversely proportional to the solutes' concentration. Whereas diffusion transports material across membranes and within cells, osmosis transports only water across a membrane, and the membrane limits the diffusion of solutes in the water. Osmosis is a special case of diffusion.
Water, like other substances, moves from a high concentration of...
12.1K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Publisher Correction: Unified framework for laser-induced transient bubble dynamics within microchannels.

Scientific reports·2024
Same author

20-Fold Increased Limiting Currents in Oxygen Reduction with Cu-tmpa by Replacing Flow-By with Flow-Through Electrodes.

ACS sustainable chemistry & engineering·2024
Same author

Unified framework for laser-induced transient bubble dynamics within microchannels.

Scientific reports·2024
Same author

Practical potential of suspension electrodes for enhanced limiting currents in electrochemical CO<sub>2</sub> reduction.

Energy advances·2024
Same author

Laser-Induced Cavitation for Controlling Crystallization from Solution.

Physical review letters·2023
Same author

A Review of Laser-Induced Crystallization from Solution.

Crystal growth & design·2023
Same journal

Erratum: Low-dimensional model for adaptive networks of spiking neurons [Phys. Rev. E 111, 014422 (2025)].

Physical review. E·2026
Same journal

Disentangling the effects of many-body forces on depletion interactions.

Physical review. E·2026
Same journal

Charge transport and mode transition in dual-energy electron beam diodes.

Physical review. E·2026
Same journal

Optimization of multisite reactions in complex compartmentalized media.

Physical review. E·2026
Same journal

Origin of geometric cohesion in nonconvex granular materials: Interplay between interdigitation and rotational constraints enhancing frictional stability.

Physical review. E·2026
Same journal

Interaction of walkers with a standing Faraday wave.

Physical review. E·2026
See all related articles

Related Experiment Video

Updated: Mar 7, 2026

Evolution of Staircase Structures in Diffusive Convection
07:28

Evolution of Staircase Structures in Diffusive Convection

Published on: September 5, 2018

6.9K

Simple diffusion hopping model with convection.

Barry W Fitzgerald1,2, Johan T Padding2, Rutger van Santen1

  • 1Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven, The Netherlands.

Physical Review. E
|February 18, 2017
PubMed
Summary
This summary is machine-generated.

A new convective diffusive lattice model simulates particulate flux around obstacles. The model shows a wake behind objects, with larger obstacles creating larger wakes and recirculation zones.

More Related Videos

Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation
09:49

Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation

Published on: November 18, 2015

12.9K
Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior
10:07

Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior

Published on: January 31, 2020

6.7K

Related Experiment Videos

Last Updated: Mar 7, 2026

Evolution of Staircase Structures in Diffusive Convection
07:28

Evolution of Staircase Structures in Diffusive Convection

Published on: September 5, 2018

6.9K
Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation
09:49

Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation

Published on: November 18, 2015

12.9K
Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior
10:07

Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior

Published on: January 31, 2020

6.7K

Area of Science:

  • Computational physics
  • Fluid dynamics
  • Particulate systems

Background:

  • Understanding particulate flux around obstacles is crucial in various scientific and engineering fields.
  • Existing diffusion hopping models have limitations in capturing convective effects on particle behavior.

Purpose of the Study:

  • To introduce and validate a novel convective diffusive lattice model for simulating particulate flux around bluff obstacles.
  • To investigate the influence of object size on wake formation and flow patterns.

Main Methods:

  • Developed a new variant of the diffusion hopping model, incorporating a continuous velocity field on a square lattice.
  • Implemented excluded volume conditions for particle interactions.
  • Utilized a convective update followed by diffusion for particle position updates.

Main Results:

  • Successfully simulated the emergence of a wake behind a square obstacle.
  • Observed that the wake size increases proportionally with obstacle size.
  • Identified recirculation zones with symmetric vortices for larger obstacles, consistent with experimental data.

Conclusions:

  • The convective diffusive lattice model effectively captures the behavior of particulate flux around bluff obstacles.
  • The model provides a valuable tool for studying fluid-structure interactions and predicting wake dynamics.
  • Simulated results show qualitative agreement with experimental observations and previous simulation studies.