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.

Steady, Laminar Flow in Circular Tubes

Steady, Laminar Flow in Circular Tubes

Hagen-Poiseuille flow describes a viscous fluid's steady, incompressible flow through a cylindrical tube with a constant radius R. This flow profile is often applied to understand fluid transport in narrow channels, such as capillaries. It serves as a foundational example of laminar flow. In this model, cylindrical coordinates (r,θ,z) are used to describe the radial (r), angular (θ), and axial (z) dimensions within the tube. For Hagen-Poiseuille flow, the velocity profile is purely axial,...

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...

Laminar Flow

Laminar Flow

Laminar flow represents a smooth, orderly fluid motion where particles move along parallel paths, resulting in minimal mixing between layers. Streamlined particle paths characterize this flow regime and occur under conditions where viscous forces dominate over inertial forces. The distinction between laminar, transitional, and turbulent flow is primarily determined by the Reynolds number, a dimensionless quantity calculated as:

General External Flow Characteristics

General External Flow Characteristics

The study of external flow is essential for creating structures and objects that interact efficiently and safely with moving fluids, such as air or water. When a body is immersed in a flowing fluid, it experiences two primary forces: drag, which opposes motion along the flow direction, and lift, which acts perpendicular to the flow. The shape, size, and orientation of the object influence these forces.Streamlined and Blunt Bodies in External FlowObjects in fluid flow are classified as...

Laminar and Turbulent Flow

Laminar and Turbulent Flow

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 streamlines...

You might also read

Related Articles

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

Sort by

Same author

Continuous to intermittent flows in growing granular heaps.

Physical review. E·2022

Same author

Sink versus tilt penetration into shaken dry granular matter: The role of the foundation.

Physical review. E·2022

Same author

Magnetic Janssen effect.

Nature communications·2021

Same author

Continuously Sheared Granular Matter Reproduces in Detail Seismicity Laws.

Physical review letters·2019

Same author

Avalanches and extreme value statistics in interfacial crackling dynamics.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2018

Same author

Thermally activated crack fronts propagating in pinning disorder: simultaneous brittle/creep behaviour depending on scale.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2018

Search research articles

Related Experiment Video

Updated: Jul 6, 2026

Parallel-plate Flow Chamber and Continuous Flow Circuit to Evaluate Endothelial Progenitor Cells under Laminar Flow Shear Stress

Parallel-plate Flow Chamber and Continuous Flow Circuit to Evaluate Endothelial Progenitor Cells under Laminar Flow Shear Stress

Published on: January 17, 2012

Coupled air/granular flow in a linear Hele-Shaw cell.

Ø Johnsen¹, R Toussaint, K J Måløy

¹Department of Physics, University of Oslo, P.O. Box 1048, Blindern, 0316 Oslo, Norway.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|March 21, 2008

Summary

Air injection into granular materials creates distinct flow patterns. This study identifies four hydrodynamic regimes, revealing coupled air-grain flows and channelization that significantly alter material permeability.

More Related Videos

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Published on: February 6, 2014

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

Related Experiment Videos

Last Updated: Jul 6, 2026

Parallel-plate Flow Chamber and Continuous Flow Circuit to Evaluate Endothelial Progenitor Cells under Laminar Flow Shear Stress

Parallel-plate Flow Chamber and Continuous Flow Circuit to Evaluate Endothelial Progenitor Cells under Laminar Flow Shear Stress

Published on: January 17, 2012

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Measuring Material Microstructure Under Flow Using 1-2 Plane Flow-Small Angle Neutron Scattering

Published on: February 6, 2014

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

Area of Science:

Physics
Fluid Dynamics
Materials Science

Background:

Pattern formation in granular materials is crucial for understanding multiphase flows.
Hele-Shaw cells provide a controlled environment for studying granular dynamics.

Purpose of the Study:

To experimentally investigate pattern formation during air injection into granular media.
To characterize the dynamics and features of these patterns.
To classify behaviors based on key parameters.

Main Methods:

Experimental investigation using a linear Hele-Shaw cell.
Fast image analysis for pattern characterization.
Sensitive pressure measurements for dynamic analysis.
Classification based on injection pressure and plate opening.

Main Results:

Four distinct hydrodynamic regimes were identified.
Strong coupling and instability observed between air and grain flows in certain parameter regions.
Evidence of channelization within the granular material.
Significant large-scale permeability variations due to channelization.

Conclusions:

Air injection in granular materials leads to complex pattern formation.
Flow behavior is highly dependent on injection pressure and plate opening.
Channelization significantly impacts the effective permeability of the granular medium.