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

Turbulent Flow01:24

Turbulent Flow

574
Turbulent flow is characterized by unpredictable fluctuations in velocity and pressure, which result in a chaotic fluid movement distinct from the orderly patterns of laminar flow. While laminar flow is governed by smooth, parallel layers with minimal mixing, turbulent flow exhibits highly irregular, three-dimensional patterns. This behavior arises due to instabilities in the fluid's velocity profile, and amplifies as the flow velocity increases. Minor disturbances, known as turbulent...
574
Laminar and Turbulent Flow01:07

Laminar and Turbulent Flow

10.3K
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...
10.3K
Navier–Stokes Equations01:28

Navier–Stokes Equations

1.9K
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...
1.9K
Introduction to Types of Flows01:23

Introduction to Types of Flows

1.8K
Fluid flows are categorized by dimensionality and behavior, with one-dimensional flow being the simplest form, where properties like velocity and pressure change only along a single axis. Water moving through straight pipes exemplifies this flow type, as variations in other directions are minimal. One-dimensional analysis helps simplify understanding such flows, focusing solely on changes along the pipe's length.
Two-dimensional flow involves changes in both length and height, as seen in...
1.8K
Poiseuille's Law and Reynolds Number01:10

Poiseuille's Law and Reynolds Number

8.8K
Any fluid in a horizontal tube can flow due to pressure differences—fluid flows from high to low pressure. The flow rate (Q) is the ratio of pressure difference and resistance through a horizontal tube. The greater the pressure difference, the higher the flow rate. The flow resistance is expressed as:
8.8K
Steady, Laminar Flow Between Parallel Plates01:17

Steady, Laminar Flow Between Parallel Plates

692
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.
692

You might also read

Related Articles

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

Sort by
Same author

A new sense for electrical fields.

Cell·2026
Same author

Experimental simulation investigation on fracture behavior and bolt anchoring mechanism in a circular tunnel under support in layered rock mass.

Scientific reports·2026
Same author

Distinct epidemiologic patterns of mesothelioma: evidence from a 16-year provincial cohort in China.

BMC cancer·2026
Same author

MYC_V1-Related Genes Affect Gastric Cancer Proliferation by Regulating Energy Metabolism and Analysis of Therapeutic Targets.

International journal of molecular sciences·2026
Same author

Sensitivity-informed multi-objective adaptive weighting method for automatic alignment of freeform USTP systems.

Optics express·2026
Same author

Metabolomic machine learning predictor for the diagnosis of alcohol-associated liver disease.

Clinica chimica acta; international journal of clinical chemistry·2026
Same journal

Chemotactic self-organization captures the dynamics of mammalian hair follicle patterning.

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

Tomographic imaging of superconducting order using particle-hole interference.

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

Inhibitory potential of autologous neutralizing antibodies sets quantitative limits on the rebound-competent HIV-1 reservoir.

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

Inferring epidemiological parameters under an infectious phylogeography model with visitor dynamics.

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

Analytical modeling for suction cup designs for skin-interfaced wearable devices.

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

Improving cell-free metabolism through direct integration of artificial respiratory chains.

Proceedings of the National Academy of Sciences of the United States of America·2026
See all related articles

Related Experiment Video

Updated: Dec 21, 2025

Magnetically Induced Rotating Rayleigh-Taylor Instability
06:42

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

9.9K

Nonlinear hydrodynamic instability and turbulence in pulsatile flow.

Duo Xu1,2,3, Atul Varshney4, Xingyu Ma4

  • 1Institute of Science and Technology Austria, 3400 Klosterneuburg, Austria; bhof@ist.ac.at duo.xu@zarm.uni-bremen.de.

Proceedings of the National Academy of Sciences of the United States of America
|May 13, 2020
PubMed
Summary
This summary is machine-generated.

Pulsating pipe flow can become turbulent at low rates due to geometric distortions, causing harmful shear stress fluctuations. This instability mechanism may explain certain cardiovascular diseases.

Keywords:
(non-)Newtonian fluidshydrodynamic instabilitypulsatile flowtransition to turbulence

More Related Videos

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

2.6K
High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
10:22

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices

Published on: September 2, 2009

14.1K

Related Experiment Videos

Last Updated: Dec 21, 2025

Magnetically Induced Rotating Rayleigh-Taylor Instability
06:42

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

9.9K
Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System
08:19

Induction of Microstreaming by Nonspherical Bubble Oscillations in an Acoustic Levitation System

Published on: May 9, 2021

2.6K
High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
10:22

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices

Published on: September 2, 2009

14.1K

Area of Science:

  • Fluid dynamics
  • Biomedical engineering
  • Cardiovascular science

Background:

  • Pulsating flows in tubes are typically laminar, including in cardiovascular systems, due to low inertial forces.
  • Flow instabilities and fluctuating shear stresses are implicated in various cardiovascular diseases.

Purpose of the Study:

  • To investigate a nonlinear instability mechanism in pulsating pipe flow.
  • To understand how geometric distortions can trigger turbulence at low flow rates.

Main Methods:

  • Simulations of pulsating pipe flow with small geometrical distortions.
  • Analysis of flow patterns, vortex formation, and shear stress fluctuations.

Main Results:

  • A nonlinear instability mechanism was identified, generating helical vortices during flow deceleration.
  • These vortices grow, break down into turbulence, and then return to laminar flow during acceleration.
  • This process leads to shear stress fluctuations and flow reversal within each cycle.

Conclusions:

  • Geometrical distortions can induce turbulence in pulsating flows at low rates.
  • The resulting unsteady flow conditions and shear stress fluctuations may contribute to cardiovascular diseases.
  • This mechanism highlights a potential link between vascular geometry and endothelial cell dysfunction.