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

Vapor Pressure02:34

Vapor Pressure

40.4K
When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules move randomly about, they will occasionally collide with the surface of the condensed phase, and in some cases, these collisions will result in the molecules re-entering the condensed phase. The change from the gas phase to the liquid is called condensation. When the rate of condensation becomes equal to the rate of vaporization, neither the amount of the liquid nor the amount of the vapor...
40.4K
Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer02:57

Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer

43.0K
Gas pressure is caused by force exerted by gas molecules colliding with the surfaces of objects. Although the force of each collision is very small, any surface of an appreciable area experiences a large number of collisions in a short time, which can result in high pressure.
43.0K
Two-Dimensional (2D) NMR: Overview01:12

Two-Dimensional (2D) NMR: Overview

1.5K
The 1D NMR spectrum of large and complex molecules like natural products has complicated splitting patterns and overlapping signals, which can be easily interpreted using 2-dimensional (2D) NMR. Unlike 1D NMR, 2D NMR has two frequency axes that provide the coupling information between the nucleus A and nucleus B in a molecule. The process from which 2D spectra are obtained has four steps.
The first step is the preparation period, during which nucleus A is excited with a radiofrequency pulse....
1.5K
Constant Pressure Calorimetry03:02

Constant Pressure Calorimetry

97.6K
Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or from a substance. The heat is exchanged with a calibrated and insulated device called the calorimeter. Calorimetry experiments are based on the assumption that there is no heat exchange between the insulated calorimeter and the external environment. The well-insulated calorimeters prevent the transfer of heat between the calorimeter and its external...
97.6K
Vapor Pressure Lowering03:28

Vapor Pressure Lowering

31.0K
The equilibrium vapor pressure of a liquid is the pressure exerted by its gaseous phase when vaporization and condensation are occurring at equal rates:
31.0K
2D NMR: Overview of Homonuclear Correlation Techniques01:16

2D NMR: Overview of Homonuclear Correlation Techniques

645
Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations between nuclei of the same type within a molecule. It provides information about scalar couplings between adjacent nuclei, which helps determine connectivity and structural information. There are several COSY variants, each with its unique strengths and experimental parameters.
COSY90 is the standard two-dimensional (2D) COSY experiment that...
645

You might also read

Related Articles

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

Sort by
Same author

The effect of cleaning and repainting on the ship drag penalty.

Biofouling·2021
Same author

Turbulent Flow Over Large Roughness Elements: Effect of Frontal and Plan Solidity on Turbulence Statistics and Structure.

Boundary-layer meteorology·2019
Same author

Using high resolution X-ray computed tomography to create an image based model of a lymph node.

Journal of theoretical biology·2018
Same author

Wind resource assessment in heterogeneous terrain.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2017
Same author

An assessment of the ship drag penalty arising from light calcareous tubeworm fouling.

Biofouling·2016
Same author

Axisymmetric turbulent wakes with new nonequilibrium similarity scalings.

Physical review letters·2013
Same journal

An accelerating inverted wing with ground effect: downforce measurement and reconstruction.

Experiments in fluids·2026
Same journal

Gyroid porous inserts as a novel flow control to mitigate tip vortex cavitation.

Experiments in fluids·2026
Same journal

Time-resolved X-ray radiography of through-thickness liquid transport in partly saturated needle-punched nonwovens.

Experiments in fluids·2026
Same journal

Experimental study of fluid-thermal-structural interactions in a Mach-10 compression corner using super-ellipse-based photogrammetry.

Experiments in fluids·2026
Same journal

Using copper-foil explosions to generate underwater focusing shocks of different geometries.

Experiments in fluids·2025
Same journal

Passive scalar transport in a cross-ventilating flow with upstream source: wind and water tunnel measurements.

Experiments in fluids·2025
See all related articles

Related Experiment Video

Updated: Jan 27, 2026

Synthesis and Microdiffraction at Extreme Pressures and Temperatures
07:26

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

11.7K

Pressure from 2D snapshot PIV.

J W Van der Kindere1, A Laskari1,2, B Ganapathisubramani1

  • 11Department of Aeronautics and Astronautics, University of Southampton, Southampton, SO17 1BJ UK.

Experiments in Fluids
|March 19, 2019
PubMed
Summary
This summary is machine-generated.

This study validates a simple pressure estimation method using 2D snapshot Particle Image Velocimetry (PIV) and Taylor

More Related Videos

Proteomic Profiling of Macrophages by 2D Electrophoresis
07:53

Proteomic Profiling of Macrophages by 2D Electrophoresis

Published on: November 4, 2014

13.4K
2D and 3D Echocardiography in the Axolotl Ambystoma Mexicanum
09:53

2D and 3D Echocardiography in the Axolotl Ambystoma Mexicanum

Published on: November 29, 2018

15.6K

Related Experiment Videos

Last Updated: Jan 27, 2026

Synthesis and Microdiffraction at Extreme Pressures and Temperatures
07:26

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

11.7K
Proteomic Profiling of Macrophages by 2D Electrophoresis
07:53

Proteomic Profiling of Macrophages by 2D Electrophoresis

Published on: November 4, 2014

13.4K
2D and 3D Echocardiography in the Axolotl Ambystoma Mexicanum
09:53

2D and 3D Echocardiography in the Axolotl Ambystoma Mexicanum

Published on: November 29, 2018

15.6K

Area of Science:

  • Fluid dynamics
  • Experimental fluid mechanics
  • Flow measurement techniques

Background:

  • Particle Image Velocimetry (PIV) can measure flow fields, but pressure field acquisition is complex.
  • Current pressure estimation from PIV often requires advanced equipment and extensive data processing.
  • A simplified method is needed to estimate pressure from readily available 2D snapshot PIV data.

Purpose of the Study:

  • To quantify the accuracy of a simple pressure estimation method using 2D snapshot PIV.
  • To assess the method's performance in attached and separated flows, particularly turbulent boundary layers.
  • To compare the method's efficacy against time-resolved approaches and 3D methods.

Main Methods:

  • Utilized Taylor's Hypothesis (TH) to substitute temporal information with spatial gradients for non-time-resolved 2D PIV.
  • Applied the 2D TH method to high-resolution 2D velocity data of turbulent boundary layer flow over ribs.
  • Validated results using time-resolved PIV measurements, 3D velocity data, and Direct Numerical Simulation (DNS) data.

Main Results:

  • The 2D TH method showed moderate to good agreement with reference pressure measurements for average and fluctuation statistics.
  • Temporal correlation values were good across measured locations when compared to time-resolved reference data.
  • Root-mean-square (RMS) pressure fluctuations estimated by the 2D TH method closely matched DNS results, comparable to 3D methods.

Conclusions:

  • The simple 2D snapshot PIV method, augmented by Taylor's Hypothesis, provides a viable approach for pressure estimation.
  • The method demonstrates good accuracy in turbulent boundary layers, offering an accessible alternative to complex techniques.
  • Guidelines are provided to identify flow regions where the accuracy of instantaneous pressure estimates may be limited.