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

Accelerating Fluids

Accelerating Fluids

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:

Buoyancy and Stability for Submerged and Floating Bodies

Buoyancy and Stability for Submerged and Floating Bodies

In fluid mechanics, buoyancy and stability are key concepts for understanding the behavior of submerged and floating bodies. When a stationary body is fully or partially submerged in a fluid, the fluid exerts a force on the body known as the buoyant force. This force acts vertically upward through a point called the center of buoyancy, which is the center of the displaced fluid volume. According to Archimedes' principle, the magnitude of the buoyant force is equal to the weight of the fluid...

You might also read

Related Articles

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

Sort by

Same author

Three-Dimensional Printing Ultrastrong, Ultraductile Micro/nano Silicon Oxycarbide Ceramics Derived from a Monolithic Preceramic Resin.

ACS nano·2026

Same author

Optical fibre gripper for high-performance 3D micromanipulation.

Nature·2026

Same author

Chiral emission from chirotopic nanostructures.

Nature communications·2026

Same author

3D Nanoarchitected Transparent Piezoelectric Glass-Ceramics.

ACS applied materials & interfaces·2026

Same author

Synergistic Fluid Minilaboratory Incorporating Femtosecond Laser-Engineered Heterogeneous Dual-Component.

Nano letters·2026

Same author

Femtosecond Laser Processing Enabling Directional Propulsion of Leidenfrost Droplets on Various Material Substrates.

ACS applied materials & interfaces·2026

Same journal

Reassessing the Proposed Creatine-PrP Axis in Endometriosis: Methodological and Mechanistic Considerations.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same journal

IL-7R-Enriched Extracellular Vesicles From the Thymus Drive Colitis via Promoting Neutrophil Extracellular Trap Formation.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same journal

Oral Prebiotic Polysaccharide Hydrogels Sustaining Colon Antibody Release Alleviate Inflammatory Bowel Disease.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same journal

Systematic Phosphorus-Driven Structural and Field Engineering of n-a-Si:H for Flexible n-a-Si:H/Te Near-Infrared Photodetectors.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same journal

Chemically Gradient Ordered Nanodomains Enable Large Tensile Ductility in Gigapascal Lightweight Refractory High-Entropy Alloys.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same journal

Single-Molecule Characterization of Bacterial Factor-Dependent Transcription Activation by Rob.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Aug 1, 2025

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

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

Published on: September 2, 2009

Self-Driving Underwater "Aerofluidics".

Jiale Yong¹, Yubin Peng¹, Xiuwen Wang¹

¹CAS Key Laboratory of Mechanical Behavior and Design of Materials, Key Laboratory of Precision Scientific Instrumentation of Anhui Higher Education Institutes, Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei, 230027, P. R. China.

Advanced Science (Weinheim, Baden-Wurttemberg, Germany)

|April 28, 2023

Summary

This summary is machine-generated.

A novel underwater aerofluidics system uses superhydrophobic microgrooves for precise gas transport. This technology enables self-driven gas manipulation over long distances for microreactions and sensing applications.

Keywords:

Laplace pressure femtosecond laser gas transportation superhydrophobicity underwater aerofluidics

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

Assembly and Operation of an Acoustofluidic Device for Enhanced Delivery of Molecular Compounds to Cells

Assembly and Operation of an Acoustofluidic Device for Enhanced Delivery of Molecular Compounds to Cells

Published on: January 21, 2021

Related Experiment Videos

Last Updated: Aug 1, 2025

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

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

Published on: September 2, 2009

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

Assembly and Operation of an Acoustofluidic Device for Enhanced Delivery of Molecular Compounds to Cells

Assembly and Operation of an Acoustofluidic Device for Enhanced Delivery of Molecular Compounds to Cells

Published on: January 21, 2021

Area of Science:

Microfluidics and Nanotechnology
Surface Science and Engineering

Background:

Traditional microfluidic systems face challenges in gas manipulation within aqueous environments.
The need for integrated systems capable of handling trace gases at the microscale is growing.

Purpose of the Study:

To propose and demonstrate the concept of "aerofluidics" for underwater gas transport and manipulation.
To design and fabricate a novel underwater aerofluidic architecture using femtosecond laser-written superhydrophobic microgrooves.

Main Methods:

Fabrication of superhydrophobic surface microgrooves using a femtosecond laser.
Design of a hollow microchannel within an aqueous medium utilizing the superhydrophobic effect.
Investigation of gas self-transportation driven by Laplace pressure within microchannels.

Main Results:

Successful formation of stable underwater microchannels for free gas flow.
Demonstration of self-driven gas transportation over distances exceeding 1 meter via Laplace pressure.
Achieved precise gas control and manipulation, including merging, splitting, and microreactions, within 42.1 µm wide channels.

Conclusions:

Underwater aerofluidics offers a versatile platform for complex gas control and microinteractions.
The developed technology shows significant potential for applications in microanalysis, sensing, and biomedical engineering.
This approach overcomes limitations of traditional microfluidics for gas handling in aqueous environments.