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

Absolute Motion Analysis- General Plane Motion

Absolute Motion Analysis- General Plane Motion

Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...

Plane Potential Flows

Plane Potential Flows

Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform...

Turbulent Flow

Turbulent Flow

Turbulent flow is characterized by unpredictable fluctuations in velocity and pressure, which result in a chaotic fluid movement distinct from the orderly patterns of laminar flow. While laminar flow is governed by smooth, parallel layers with minimal mixing, turbulent flow exhibits highly irregular, three-dimensional patterns. This behavior arises due to instabilities in the fluid's velocity profile, and amplifies as the flow velocity increases. Minor disturbances, known as turbulent...

Laminar and Turbulent Flow

Laminar and Turbulent Flow

Fluid dynamics is the study of fluids in motion. Velocity vectors are often used to illustrate fluid motion in applications like meteorology. For example, wind—the fluid motion of air in the atmosphere—can be represented by vectors indicating the speed and direction of the wind at any given point on a map. Another method for representing fluid motion is a streamline. A streamline represents the path of a small volume of fluid as it flows. When the flow pattern changes with time, the...

Surface Tension of Fluid

Surface Tension of Fluid

Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies...

Rapidly Varying Flow

Rapidly Varying Flow

Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...

You might also read

Related Articles

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

Sort by

Same author

Intrinsic Interface Adsorption Drives Selectivity in Atomically Smooth Nanofluidic Channels.

Nano letters·2023

Same author

Distinct Chemistries Explain Decoupling of Slip and Wettability in Atomically Smooth Aqueous Interfaces.

The journal of physical chemistry letters·2021

Same author

Beyond the Tradeoff: Dynamic Selectivity in Ionic Transport and Current Rectification.

The journal of physical chemistry. B·2019

See all related articles

Search research articles

Related Experiment Video

Updated: Dec 7, 2025

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Published on: April 17, 2015

River Plume Liftoff Dynamics and Surface Expressions.

R A Branch^1,2, A R Horner-Devine¹, N Kumar¹

¹Department of Civil and Environmental Engineering University of Washington Seattle WA USA.

Water Resources Research

|October 1, 2020

Summary

River liftoff creates a surface ridge during high discharge, detectable by SWOT. Ridge presence and characteristics can estimate river flow, distinguishing high from low discharge events.

Keywords:

ROMS SWOT ocean modeling river discharge

More Related Videos

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

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Published on: April 23, 2018

Related Experiment Videos

Last Updated: Dec 7, 2025

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Visualization of High Speed Liquid Jet Impaction on a Moving Surface

Published on: April 17, 2015

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

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods

Published on: April 23, 2018

Area of Science:

Oceanography
Fluid Dynamics
Remote Sensing

Background:

Liftoff describes buoyant river water separating from the bed and flowing over denser saltwater.
Understanding liftoff is crucial for coastal and estuarine dynamics.

Purpose of the Study:

To investigate the water surface expression of riverine liftoff.
To determine the dependence of liftoff on river discharge using numerical simulations.

Main Methods:

Numerical simulations using the Regional Ocean Modeling System (ROMS).
Development of analytical equations to describe the surface ridge characteristics.

Main Results:

High discharge causes liftoff outside the river mouth, forming a detectable surface ridge.
Ridge location and height correlate with discharge and river mouth geometry.
The Surface Water and Ocean Topography (SWOT) satellite can detect the ridge during high discharge.

Conclusions:

The presence or absence of the ridge can differentiate between low and high river flows.
Ridge measurements offer a method for estimating freshwater discharge remotely.