Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Steady, Laminar Flow Between Parallel Plates

Steady, Laminar Flow Between Parallel Plates

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.

Couette Flow

Couette Flow

Couette flow represents the flow of fluid between two parallel plates, with one plate fixed and the other moving with a constant velocity. This configuration allows for a simplified analysis using the Navier-Stokes equations, which govern fluid motion under conditions of viscosity and incompressibility. For Couette flow, the assumptions include a steady, laminar, incompressible flow with a zero-pressure gradient in the flow direction. This flow type is beneficial for understanding shear-driven...

Navier–Stokes Equations

Navier–Stokes Equations

For incompressible Newtonian fluids, where density remains constant, stresses show a linear relationship with the deformation rate, defined by normal and shear stresses. Normal stresses depend on the pressure exerted on the fluid and the rate of deformation in specific directions, which determines how fluid flows under varying pressures. Shear stresses, on the other hand, act tangentially across fluid layers. They explain how adjacent fluid layers slide relative to one another, connecting...

Newtonian Fluid: Problem Solving

Newtonian Fluid: Problem Solving

Newtonian fluids exhibit a constant viscosity, meaning their shear stress and shear strain rate are directly proportional. This property ensures a predictable and stable response to applied forces, maintaining a linear relationship between force and flow. Examples include water, air, and light oils, consistently demonstrating this proportional behavior regardless of external conditions.
A velocity gradient forms within the fluid when a Newtonian fluid is placed between two parallel plates, with...

Pressure Variation in a Fluid at Rest

Pressure Variation in a Fluid at Rest

In a fluid at rest, the pressure at any point beneath the fluid surface depends solely on the depth, not on the container's shape or size. This principle, known as hydrostatic pressure, arises because, in stationary fluids, there is no acceleration, meaning the forces within the fluid balance out. Only vertical forces, caused by the weight of the fluid above, contribute to pressure changes with depth.
When measuring pressure at two different levels within the fluid, the difference in...

Position and Displacement Vectors

Position and Displacement Vectors

To describe the motion of an object, one should first be able to describe its position (where it is at any particular time). More precisely, the position needs to be specified relative to a convenient frame of reference. A frame of reference is an arbitrary set of axes from which the position and motion of an object are described. Earth is often used as a frame of reference to describe the position of an object in relation to stationary objects on Earth.
Further, several important kinds of...

You might also read

Related Articles

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

Sort by

Same author

Capillary bundling of microtubules by condensates.

bioRxiv : the preprint server for biology·2026

Same author

Room-Temperature Aerosol Dehydration of Green Fluorescent Protein.

Drying technology·2026

Same author

Ultrasensitive Detection of Macromolecules in Water Via Flowing Nanoparticles on a Microchip.

Nano letters·2026

Same author

Soft-Lubrication Drainage and Rupture in Particle-Driven Vesicles.

Physical review letters·2026

Same author

Upper Bounds on the Colloid Separation Efficiency of Diffusiophoresis.

Langmuir : the ACS journal of surfaces and colloids·2026

Same author

The influence of electrical charge on plasmodesma conductivity.

Proceedings of the National Academy of Sciences of the United States of America·2026

Search research articles

Related Experiment Video

Updated: Apr 13, 2026

Isolation and Time-Lapse Imaging of Primary Mouse Embryonic Palatal Mesenchyme Cells to Analyze Collective Movement Attributes

Isolation and Time-Lapse Imaging of Primary Mouse Embryonic Palatal Mesenchyme Cells to Analyze Collective Movement Attributes

Published on: February 13, 2021

Noncircular stable displacement patterns in a meshed porous layer.

Hyoungsoo Kim¹, Zhong Zheng¹, Howard A Stone¹

¹Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States.

Langmuir : the ACS Journal of Surfaces and Colloids

|May 1, 2015

Summary

Stable, noncircular liquid propagation patterns were observed in thin porous layers. Interface shape, influenced by surface tension, can be controlled by layer orientation, revealing new fluid dynamics insights.

More Related Videos

Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation

Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation

Published on: November 18, 2015

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

Published on: August 26, 2019

Related Experiment Videos

Last Updated: Apr 13, 2026

Isolation and Time-Lapse Imaging of Primary Mouse Embryonic Palatal Mesenchyme Cells to Analyze Collective Movement Attributes

Isolation and Time-Lapse Imaging of Primary Mouse Embryonic Palatal Mesenchyme Cells to Analyze Collective Movement Attributes

Published on: February 13, 2021

Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation

Visualizing Hyporheic Flow Through Bedforms Using Dye Experiments and Simulation

Published on: November 18, 2015

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

Published on: August 26, 2019

Area of Science:

Physics
Fluid Dynamics
Materials Science

Background:

Understanding fluid flow in porous media is crucial for various applications.
Previous studies often assumed circular or isotropic interface propagation.

Purpose of the Study:

To investigate noncircular liquid propagation patterns in confined patterned porous layers.
To identify factors controlling interface shape and propagation dynamics.

Main Methods:

Experimental observation of liquid displacement in patterned porous layers.
Analysis of interface front location over time using power-law behavior.
Varying fluid injection rates and analyzing the influence of surface tension.

Main Results:

Stable, noncircular interface shapes (square, rectangular, octagonal) were observed.
Interface shape is maintained during most of the injection process.
A dimensionless group governs the balance between surface tension and injection stresses.

Conclusions:

Liquid propagation in patterned porous layers can exhibit stable noncircular patterns.
Surface tension plays a key role in determining interface morphology.
Controlling layer orientation offers a method to manipulate fluid propagation patterns.