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

Excess Pressure Inside a Drop and a Bubble

Excess Pressure Inside a Drop and a Bubble

The shape of a small drop of liquid can be considered spherical, neglecting the effect of gravity. This drop can further be considered as two equal hemispherical drops put together due to surface tension. The forces acting on the spherical drop are due to the pressure of the liquid inside the drop, the pressure due to air outside the drop, and the force due to the surface tension acting on the two hemispherical drops.

Standing Waves in a Cavity

Standing Waves in a Cavity

A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:

Deriving the Speed of Sound in a Liquid

Deriving the Speed of Sound in a Liquid

As with waves on a string, the speed of sound or a mechanical wave in a fluid depends on the fluid's elastic modulus and inertia. The two relevant physical quantities are the bulk modulus and the density of the material. Indeed, it turns out that the relationship between speed and the bulk modulus and density in fluids is the same as that between the speed and the Young's modulus and density in solids.
The speed of sound in fluids can be derived by considering a mechanical wave propagating...

Steady Flow of a Fluid Stream

Steady Flow of a Fluid Stream

Consider a control volume, such as a pipe with solid boundaries, through which fluid flows and changes direction due to the impulse exerted by the resulting force from the pipe walls. In steady flow, the mass of fluid entering the control volume at a given time, t, with velocity v1, is equal to the mass leaving after infinitesimal time dt, with velocity v2.
During this process, the momentum of the fluid within the control volume remains constant over the time interval dt. By applying the...

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,...

Rise of Liquid in a Capillary Tube

Rise of Liquid in a Capillary Tube

When very thin cylindrical tubes, called capillaries, are dipped in a liquid, the liquid rises or falls in the tube compared to the surrounding liquid. This phenomenon is called capillary action. Capillary action occurs due to the combination of two opposing forces: the cohesive forces of the liquid, which cause it to stick to itself and form a rounded shape, and the adhesive forces between the liquid and the walls of the container, which cause the liquid to be attracted to the container walls.

You might also read

Related Articles

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

Sort by

Same author

Probing radiation forces acting on acoustic bubbles using digital in-line holography.

Ultrasonics sonochemistry·2026

Same author

Focused acoustic vortex-mediated targeted aggregation of engineered bacteria for in situ antibody production to enhance immunotherapy.

Acta biomaterialia·2026

Same author

Therapeutic efficacy of in-vivo IL-12 plasmid delivery using microbubble-assisted ultrasound in a B16F10 mouse melanoma model: a proof of concept.

International journal of pharmaceutics·2025

Same author

Focused ultrasound-triggered escitalopram delivery using microbubble-liposome complexes for rapid and sustained serotonin regulation in depression therapy.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie·2025

Same author

Metabolomic profile of cerebral tissue after acoustically-mediated blood-brain barrier opening in a healthy rat model: a focus on the contralateral side.

Frontiers in molecular neuroscience·2024

Same author

Enhancing Curcumin's therapeutic potential in cancer treatment through ultrasound mediated liposomal delivery.

Scientific reports·2024

Same journal

High-resolution depth estimation for multiple wideband sources in deep sea via sparse Bayesian learninga).

The Journal of the Acoustical Society of America·2026

Same journal

Depression markers in speech: An approach based on tract variables dynamics.

The Journal of the Acoustical Society of America·2026

Same journal

The oyster toadfish (Opsanus tau) alters active and diurnal calling amid vessel noise in New York City.

The Journal of the Acoustical Society of America·2026

Same journal

Experimental noise characterisation of phase-locked tandem-rotor in edgewise flight.

The Journal of the Acoustical Society of America·2026

Same journal

The tune-text-temporal synergy: Prosodic effects of final segmental weakening in Neapolitan.

The Journal of the Acoustical Society of America·2026

Same journal

Monitoring vessel movement above critical offshore infrastructure using distributed acoustic sensing.

The Journal of the Acoustical Society of America·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jun 16, 2026

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

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

Published on: May 9, 2021

Acoustic microstreaming around a gas bubble.

Alexander A Doinikov¹, Ayache Bouakaz

¹INSERM U930 CNRS ERL 3106, Universite Francois Rabelais, CHU Bretonneau, 2 Boulevard Tonnelle, 37044 Tours Cedex 9, France.

The Journal of the Acoustical Society of America

|February 9, 2010

Summary

This summary is machine-generated.

This study corrects previous underestimations of acoustic streaming power around gas bubbles using an improved theory. The new model treats fluids as viscous and heat-conducting, offering a more accurate analysis of ultrasound-driven microstreaming effects.

More Related Videos

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Published on: August 27, 2013

Multi-timescale Microscopy Methods for the Characterization of Fluorescently-labeled Microbubbles for Ultrasound-Triggered Drug Release

Multi-timescale Microscopy Methods for the Characterization of Fluorescently-labeled Microbubbles for Ultrasound-Triggered Drug Release

Published on: June 12, 2021

Related Experiment Videos

Last Updated: Jun 16, 2026

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

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

Published on: May 9, 2021

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Fabrication, Operation and Flow Visualization in Surface-acoustic-wave-driven Acoustic-counterflow Microfluidics

Published on: August 27, 2013

Multi-timescale Microscopy Methods for the Characterization of Fluorescently-labeled Microbubbles for Ultrasound-Triggered Drug Release

Multi-timescale Microscopy Methods for the Characterization of Fluorescently-labeled Microbubbles for Ultrasound-Triggered Drug Release

Published on: June 12, 2021

Area of Science:

Fluid dynamics
Acoustics
Nonlinear acoustics

Background:

Acoustic microstreaming around gas bubbles is a significant phenomenon in ultrasound applications.
Previous theories, like Wu and Du (1997), underestimated streaming power by assuming inviscid fluids beyond boundary layers.

Purpose of the Study:

To develop an improved theory for acoustic microstreaming around gas bubbles.
To correct the underestimation of acoustic streaming power in prior models.
To provide a more comprehensive theoretical framework for bubble dynamics in ultrasound fields.

Main Methods:

Developed a new theory treating both gas and liquid as viscous, heat-conducting fluids.
Removed previous restrictions on bubble size relative to wavelengths.
Incorporated all bubble motion modes: volume pulsation, translation, and shape oscillations.

Main Results:

The improved theory corrects underestimations of acoustic streaming power.
Derived expressions for radial and tangential stresses generated by acoustic streaming.
Presented numerical examples for relevant parameters.

Conclusions:

The proposed theory offers a more accurate and extended analysis of acoustic microstreaming.
This work provides a better understanding of fluid behavior around gas bubbles under ultrasound.
The findings are crucial for optimizing applications involving acoustic streaming and bubble dynamics.