Jove
Visualize
Contact Us

Related Concept Videos

Dynamics of Circular Motion01:30

Dynamics of Circular Motion

13.7K
An object undergoing circular motion, like a race car, is accelerating because it is changing the direction of its velocity. This centrally directed acceleration is called centripetal acceleration. This acceleration acts along the radius of the curved path (thus is also referred to as radial acceleration).
Any acceleration must be produced by some force. Therefore, any force or combination of forces can cause centripetal acceleration. A few examples include the tension in the rope on a...
13.7K
Gravitational Potential Energy for Extended Objects01:07

Gravitational Potential Energy for Extended Objects

1.4K
Consider a system comprising several point masses. The coordinates of the center of mass for this system can be expressed as the summation of the product of each mass and its position vector divided by the total mass:
1.4K
Dynamics Of Circular Motion: Applications01:17

Dynamics Of Circular Motion: Applications

7.9K
Suppose a car moves on flat ground and turns to the left. The centripetal force causing the car to turn in a circular path is due to friction between the tires and the road. For this, a minimum coefficient of friction is needed, or the car will move in a larger-radius curve and leave the roadway. Let's now consider banked curves, where the slope of the road helps in negotiating the curve. The greater the angle of the curve, the faster one can take the curve. It is common for race tracks for...
7.9K
Irrotational Flow01:28

Irrotational Flow

518
Irrotational flow is characterized by fluid motion where particles do not rotate around their axes, resulting in zero vorticity. For a flow to be irrotational, the curl of the velocity field must be zero. This imposes specific conditions on velocity gradients. For instance, to maintain zero rotation about the z-axis, the gradient condition:
518
Steady, Laminar Flow in Circular Tubes01:23

Steady, Laminar Flow in Circular Tubes

292
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...
292
Divergence and Curl of Magnetic Field01:26

Divergence and Curl of Magnetic Field

3.1K
The magnetic field due to a volume current distribution given by the Biot–Savart Law can be expressed as follows:
3.1K

You might also read

Related Articles

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

Sort by
Same author

Remote sEnsing obServations of source Parameters and data IntegRation at EtnA: the RESPIRA database.

Scientific data·2026
Same author

Upgraded Three-Wavelength Lidar for Real-Time Observations of Volcanic Aerosol Optical and Microphysical Properties at Etna (Italy): Calibration Procedures and Measurement Tests.

Sensors (Basel, Switzerland)·2024
Same author

Assessment of eruption source parameters using infrasound and plume modelling: a case study from the 2021 eruption of Mt. Etna, Italy.

Scientific reports·2023
Same author

Aeolus winds impact on volcanic ash early warning systems for aviation.

Scientific reports·2023
Same author

Small-scale volcanic aerosols variability, processes and direct radiative impact at Mount Etna during the EPL-RADIO campaigns.

Scientific reports·2020
Same author

Unravelling the links between seismo-acoustic signals and eruptive parameters: Etna lava fountain case study.

Scientific reports·2019
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 Experiment Video

Updated: Aug 11, 2025

Noninvasive Determination of Vortex Formation Time Using Transesophageal Echocardiography During Cardiac Surgery
04:48

Noninvasive Determination of Vortex Formation Time Using Transesophageal Echocardiography During Cardiac Surgery

Published on: November 28, 2018

8.0K

Dynamics of volcanic vortex rings.

Fabio Pulvirenti1, Simona Scollo2, Carmelo Ferlito3

  • 1School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo, 454000, China.

Scientific Reports
|February 9, 2023
PubMed
Summary

Volcanic vortex rings form due to rapid gas release from magma slugs and a regular vent shape. These findings offer insights into volcanic conduit dynamics.

More Related Videos

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole
09:37

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

Published on: August 26, 2019

5.7K
Author Spotlight: Advancing Neonatal Cardiac Diagnostics with Echocardiography-Derived Blood Speckle Imaging
07:13

Author Spotlight: Advancing Neonatal Cardiac Diagnostics with Echocardiography-Derived Blood Speckle Imaging

Published on: December 22, 2023

1.5K

Related Experiment Videos

Last Updated: Aug 11, 2025

Noninvasive Determination of Vortex Formation Time Using Transesophageal Echocardiography During Cardiac Surgery
04:48

Noninvasive Determination of Vortex Formation Time Using Transesophageal Echocardiography During Cardiac Surgery

Published on: November 28, 2018

8.0K
Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole
09:37

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

Published on: August 26, 2019

5.7K
Author Spotlight: Advancing Neonatal Cardiac Diagnostics with Echocardiography-Derived Blood Speckle Imaging
07:13

Author Spotlight: Advancing Neonatal Cardiac Diagnostics with Echocardiography-Derived Blood Speckle Imaging

Published on: December 22, 2023

1.5K

Area of Science:

  • Geophysics
  • Fluid Dynamics
  • Volcanology

Background:

  • Vortex rings have been observed in volcanic eruptions since the 18th century.
  • The precise physical conditions for their formation remain poorly understood.
  • Understanding volcanic vortex rings can provide insights into magma conduit dynamics.

Purpose of the Study:

  • To investigate the physical conditions required for the formation of volcanic vortex rings.
  • To identify model configurations that match field observations of volcanic vortex rings.
  • To offer insights into the geometry of volcanic conduits.

Main Methods:

  • A series of finite element simulations were performed.
  • The simulations aimed to replicate observed volcanic vortex ring phenomena.
  • Model configurations were systematically varied to identify key formation factors.

Main Results:

  • Volcanic vortex ring formation requires a combination of factors.
  • Fast gas release from gas bubbles (slugs) at the magma conduit's top is crucial.
  • A regular shape of the emitting vent is also necessary for ring formation.

Conclusions:

  • The study identifies key parameters for volcanic vortex ring formation.
  • Findings suggest specific geometric properties of the upper volcanic conduit.
  • This research can inform cross-disciplinary studies on volcanic vent dynamics.