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

Velocity and Acceleration in Steady and Unsteady Flow01:11

Velocity and Acceleration in Steady and Unsteady Flow

186
In fluid mechanics, velocity and acceleration are key concepts for analyzing particle motion in both steady and unsteady flow. Consider a fluid particle moving along a pathline, where its velocity depends on its position and time. The particle's acceleration is obtained by differentiating the velocity with respect to time.
The acceleration can be generalized to any point in the flow, and expressed as components along three perpendicular directions, representing changes in velocity over...
186
Accelerating Fluids01:17

Accelerating Fluids

1.6K
When a fluid is in constant acceleration, the pressure and buoyant force equations are modified. Suppose a beaker is placed in an elevator accelerating upward with a constant acceleration, a. In the beaker, assume there is a thin cylinder of height h with an infinitesimal cross-sectional area, ΔS.
The motion of the liquid within this infinitesimal cylinder is considered to obtain the pressure difference. Three vertical forces act on this liquid:
1.6K
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

459
A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
459
Uniform Depth Channel Flow01:27

Uniform Depth Channel Flow

187
Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
187
Velocity and Acceleration of a Wave00:51

Velocity and Acceleration of a Wave

4.2K
A wave propagates through a medium with a constant speed, known as a wave velocity. It is different from the speed of the particles of the medium, which is not constant. In addition, the velocity of the medium is perpendicular to the velocity of the wave. The variable speed of the particles of the medium implies that there must be acceleration associated with it. 
The velocity of the particles can be obtained by taking the partial derivative of the position equation with respect to time....
4.2K
Average Velocity01:12

Average Velocity

20.4K
To calculate the other physical quantities in kinematics, we must introduce the time variable. The time variable allows us not only to state the position of the object during its motion, but also how fast it is moving. The speed at which an object is moving is given by the rate at which the position changes with time. For each position xi, we assign a particular time ti. If the details of the motion at each instant are not important, the rate is usually expressed as the average velocity. This...
20.4K

You might also read

Related Articles

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

Sort by
Same author

Nanoscale frictional imaging of ferroelectric domains.

Science advances·2026
Same author

Correction: Comparing ecological relevance of climate velocity indices.

Scientific reports·2026
Same author

Comparing ecological relevance of climate velocity indices.

Scientific reports·2026
Same author

Wildfire, ecosystem, and climate interactions in the Early Triassic.

Communications earth & environment·2025
Same author

Curvature-Controlled Polarization in Adaptive Ferroelectric Membranes.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same author

Nanoscale electrostatic control in ferroelectric thin films through lattice chemistry.

Nature communications·2025

Related Experiment Video

Updated: Oct 2, 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

Smooth velocity fields for tracking climate change.

Iaroslav Gaponenko1, Guillaume Rohat2, Stéphane Goyette2,3

  • 1DQMP, University of Geneva, Quai Ansermet 24, 1211, Geneva 4, Switzerland.

Scientific Reports
|February 23, 2022
PubMed
Summary

We developed a new method to calculate the speed of climate change, showing how fast climate patterns are moving. This helps understand how ecosystems and people can adapt to these rapid shifts.

More Related Videos

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow
13:02

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow

Published on: February 27, 2016

12.4K
Spatial Temporal Analysis of Fieldwise Flow in Microvasculature
09:39

Spatial Temporal Analysis of Fieldwise Flow in Microvasculature

Published on: November 18, 2019

6.0K

Related Experiment Videos

Last Updated: Oct 2, 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
Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow
13:02

Three-dimensional Particle Tracking Velocimetry for Turbulence Applications: Case of a Jet Flow

Published on: February 27, 2016

12.4K
Spatial Temporal Analysis of Fieldwise Flow in Microvasculature
09:39

Spatial Temporal Analysis of Fieldwise Flow in Microvasculature

Published on: November 18, 2019

6.0K

Area of Science:

  • Climate Science
  • Environmental Science
  • Geophysics

Background:

  • Understanding the spatial velocity of climate change is crucial for assessing adaptation and migration challenges.
  • Current methods may lack realism or require ad hoc assumptions.

Purpose of the Study:

  • To introduce a fully-determined approach, "MATCH", for calculating continuous climate parameter velocity fields.
  • To apply this method to isotherm displacement under a specific climate change scenario.

Main Methods:

  • The "MATCH" (Movement of ANy Climate parameter velocity) approach calculates realistic, continuous velocity fields.
  • Applied to isotherm displacement data from climate models (1950-2100, RCP 8.5).

Main Results:

  • The MATCH approach provides detailed climate velocity patterns, particularly at regional scales.
  • Trajectories calculated are less sensitive to inter-annual fluctuations.
  • Introduced a trajectory regularity index for quantitative analysis.

Conclusions:

  • The MATCH method offers a robust tool for comparing climate models and analyzing regional climate dynamics.
  • Facilitates quantitative assessment of climate sinks and sources through trajectory analysis.