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

Capillarity in Fluid01:19

Capillarity in Fluid

392
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...
392
Bernoulli's Equation for Flow Along a Streamline01:30

Bernoulli's Equation for Flow Along a Streamline

1.1K
Bernoulli's equation relates the energy conservation in a fluid moving along a streamline. The equation applies to incompressible and inviscid fluids under steady flow. For such a flow, Newton's second law is applied to a small fluid element, which experiences forces due to pressure differences, gravity, and velocity variations. The force balance leads to the following form of Bernoulli's equation:
1.1K
Physiological Pharmacokinetic Models: Blood Flow-Limited Versus Diffusion-Limited Models00:57

Physiological Pharmacokinetic Models: Blood Flow-Limited Versus Diffusion-Limited Models

151
Physiological pharmacokinetic models, often called flow-limited or perfusion models, typically assume a swift drug distribution between tissue and venous blood, creating a rapid drug equilibrium. This premise is based on the idea that drug diffusion is extremely fast, and the cell membrane presents no barrier to drug permeation. In this scenario, where no drug binding occurs, the drug concentration in the tissue equals that of the venous blood leaving the tissue. This greatly simplifies the...
151
Laminar and Turbulent Flow01:07

Laminar and Turbulent Flow

9.1K
Fluid dynamics is the study of fluids in motion. Velocity vectors are often used to illustrate fluid motion in applications like meteorology. For example, wind—the fluid motion of air in the atmosphere—can be represented by vectors indicating the speed and direction of the wind at any given point on a map. Another method for representing fluid motion is a streamline. A streamline represents the path of a small volume of fluid as it flows. When the flow pattern changes with time, the...
9.1K
Streamlines, Streaklines, and Pathlines01:18

Streamlines, Streaklines, and Pathlines

1.5K
A streamline represents the trajectory that is always tangent to the fluid's velocity vector at any given point. The velocity of a fluid particle is always directed along the streamline, ensuring the particle continuously follows the streamline's path. Streamlines are particularly useful for visualizing the overall direction of flow in a fluid system, and they provide an instantaneous representation of the flow's velocity field. In steady flow, where conditions do not change over...
1.5K
Bernoulli's Equation for Flow Normal to a Streamline01:16

Bernoulli's Equation for Flow Normal to a Streamline

944
Bernoulli's equation for flow normal to a streamline explains how pressure varies across curved streamlines due to the outward centrifugal forces induced by the fluid's curvature. The pressure is higher on the inner side of the curve, near the center of curvature, and decreases outward to balance these centrifugal forces.
The pressure difference depends on the fluid's velocity and radius of curvature. The pressure variation is minimal in flows with nearly straight streamlines.
944

You might also read

Related Articles

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

Sort by
Same author

Solvent-free engineering of a co-amorphous efavirenz-ritonavir system by hot-melt extrusion: Solid-state stabilisation and improved bioavailability.

International journal of pharmaceutics·2026
Same author

Harnessing extracellular niche for liver regeneration: Mechanobiological and immunological unmet needs in decellularised hydrogel-based strategies.

Journal of controlled release : official journal of the Controlled Release Society·2026
Same author

Diffusion driven growth kinetics of hydrothermally synthesized MoS<sub>2</sub>quantum dots.

Journal of physics. Condensed matter : an Institute of Physics journal·2026
Same author

Decellularized Extracellular Matrix-Based Tunable 3D Hydrogel: An Alternative Methodology for the Development of a Doxorubicin-Independent 3D Breast Cancer Microphysiological Chemoresistance Model.

ACS applied bio materials·2026
Same author

Mesalamine premix-based delayed release formulation and its efficacy assessment using a 3D in-vitro gut model for inflammatory bowel disease.

Journal of controlled release : official journal of the Controlled Release Society·2026
Same author

Exploration of biomaterial and stem cell-based strategies for promoting neuronal regeneration and creating engineered 3D in-vitro disease models.

Journal of translational medicine·2025

Related Experiment Video

Updated: Sep 13, 2025

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
08:04

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature

Published on: November 26, 2019

7.3K

Dynamics of active paths during two-phase flow through the capillary fiber bundle model.

Anjali Vajigi1, Subhadeep Roy1

  • 1Birla Institute of Technology and Science Pilani, Department of Physics, Hyderabad Campus, Secunderabad 500078, Telangana, India.

Physical Review. E
|August 1, 2025
PubMed
Summary

The dynamics of active path opening are crucial for understanding nonlinear rheology in two-phase flow. Tuning capillary thresholds reveals distinct flow behaviors and energy redistribution, indicating self-organized criticality.

More Related Videos

Development of a Microfluidics-Based Approach for Investigating Microtubule Polymer Mechanics
06:03

Development of a Microfluidics-Based Approach for Investigating Microtubule Polymer Mechanics

Published on: May 30, 2025

326
Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry
11:20

Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry

Published on: January 9, 2014

6.6K

Related Experiment Videos

Last Updated: Sep 13, 2025

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature
08:04

Controlling Flow Speeds of Microtubule-Based 3D Active Fluids Using Temperature

Published on: November 26, 2019

7.3K
Development of a Microfluidics-Based Approach for Investigating Microtubule Polymer Mechanics
06:03

Development of a Microfluidics-Based Approach for Investigating Microtubule Polymer Mechanics

Published on: May 30, 2025

326
Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry
11:20

Fabrication and Visualization of Capillary Bridges in Slit Pore Geometry

Published on: January 9, 2014

6.6K

Area of Science:

  • Physics
  • Rheology
  • Fluid Dynamics

Background:

  • Two-phase flow of immiscible fluids is common in natural and industrial processes.
  • Understanding nonlinear rheology is essential for predicting fluid behavior under varying conditions.
  • Capillary fiber bundle models provide a framework for studying flow dynamics in porous media.

Purpose of the Study:

  • To investigate the dynamics of active path opening in two-phase flow.
  • To elucidate the role of path opening in nonlinear rheology.
  • To analyze the influence of capillary thresholds on flow behavior and energy dynamics.

Main Methods:

  • Modeling two-phase flow dynamics under an external pressure drop (ΔP).
  • Analyzing the one-dimensional capillary fiber bundle model.
  • Investigating the effect of varying maximum capillary thresholds (P_M).
  • Examining the relationship between flow rate (Q) and pressure drop (ΔP).

Main Results:

  • Path opening dynamics significantly impact nonlinear rheology when capillary and viscous forces are comparable.
  • Two distinct nonlinear behaviors emerge around P_M: flow with new path opening (ΔP < P_M) and flow without (ΔP > P_M).
  • Kinetic energy rearrangement occurs at P_M, evidenced by changes in the participation number (π).
  • The power spectrum of π exhibits an inverse square decay, characteristic of red noise and energy equipartition.

Conclusions:

  • Active path opening is a key mechanism governing nonlinear rheology in this system.
  • The parameter P_M acts as a critical threshold controlling flow regimes and energy dynamics.
  • The observed phenomena suggest underlying self-organized criticality in the system.