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

Typical Model Studies

Typical Model Studies

Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.

Bernoulli's Equation for Flow Along a Streamline

Bernoulli's Equation for Flow Along a Streamline

Bernoulli's equation relates the energy conservation in a fluid moving along a streamline. The equation applies to incompressible and inviscid fluids under steady flow. For such a flow, Newton's second law is applied to a small fluid element, which experiences forces due to pressure differences, gravity, and velocity variations. The force balance leads to the following form of Bernoulli's equation:

Design Example: Creating a Hydraulic Model of a Dam Spillway

Design Example: Creating a Hydraulic Model of a Dam Spillway

Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.

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...

Bernoulli's Equation for Flow Normal to a Streamline

Bernoulli's Equation for Flow Normal to a Streamline

Bernoulli's equation for flow normal to a streamline explains how pressure varies across curved streamlines due to the outward centrifugal forces induced by the fluid's curvature. The pressure is higher on the inner side of the curve, near the center of curvature, and decreases outward to balance these centrifugal forces.
The pressure difference depends on the fluid's velocity and radius of curvature. The pressure variation is minimal in flows with nearly straight streamlines. However, the...

Steady, Laminar Flow Between Parallel Plates

Steady, Laminar Flow Between Parallel Plates

Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.

You might also read

Related Articles

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

Sort by

Same author

Corrigendum to "Investigation of waste incineration of fluorotelomer-based polymers as a potential source of PFOA in the environment" [Chemosphere 110 (2014) 17-22].

Chemosphere·2022

Same author

Onset and limiting amplitude of yaw instability of a submerged three-tethered buoy.

Proceedings. Mathematical, physical, and engineering sciences·2020

Same author

Wind loads on open truss structures: applications of blockage to historic transporter bridges.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2019

Same author

Transverse motion instability of a submerged moored buoy.

Proceedings. Mathematical, physical, and engineering sciences·2019

Same author

Decadal variability of extreme wave height representing storm severity in the northeast Atlantic and North Sea since the foundation of the Royal Society.

Proceedings. Mathematical, physical, and engineering sciences·2016

Same author

Investigation of waste incineration of fluorotelomer-based polymers as a potential source of PFOA in the environment.

Chemosphere·2014

Search research articles

Related Experiment Video

Updated: Apr 19, 2026

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

Published on: August 26, 2019

Second-order statistics and 'designer' waves for violent free-surface motion around multi-column structures.

J R Grice¹, P H Taylor², R Eatock Taylor²

¹Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, UK jamesgrice23@gmail.com.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences

|December 17, 2014

Summary

This summary is machine-generated.

Extreme wave interactions with structures can double wave crest heights, particularly due to near-trapped modes. A designer incident wave can predict extreme crest elevations for various sea states and return periods.

Keywords:

designer wave diffraction hydrodynamics second order

More Related Videos

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

Preparation of Free-Surface Hyperbolic Water Vortices

Preparation of Free-Surface Hyperbolic Water Vortices

Published on: July 28, 2023

Related Experiment Videos

Last Updated: Apr 19, 2026

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

Visualization of Flow Field Around a Vibrating Pipeline Within an Equilibrium Scour Hole

Published on: August 26, 2019

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

Preparation of Free-Surface Hyperbolic Water Vortices

Preparation of Free-Surface Hyperbolic Water Vortices

Published on: July 28, 2023

Area of Science:

Ocean Engineering
Fluid Dynamics
Naval Architecture

Background:

Understanding extreme wave-structure interactions is crucial for offshore engineering.
Previous studies often simplify wave conditions or structure complexity.

Purpose of the Study:

To investigate extreme wave-structure interactions using advanced theoretical methods.
To quantify the amplification of surface elevation around multi-column structures.

Main Methods:

Employed second-order diffraction theory for wave analysis.
Utilized Monte Carlo-type simulations to model severe sea states.
Analyzed surface elevation statistics around a realistic four-column structure.

Main Results:

Extreme crest elevations more than double those in the incident wave field were observed.
Second-order near-trapped modes significantly contribute to increased wave heights.
A 'designer' incident wave concept was introduced to predict extreme responses.

Conclusions:

Multi-column structures can dramatically amplify wave crests.
Second-order effects and near-trapped modes are key drivers of extreme interactions.
The 'designer' wave approach offers a scalable method for predicting extreme wave responses.