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

Boundary Layer Characteristics

Boundary Layer Characteristics

When a fluid encounters a solid surface, a boundary layer forms due to the interaction between the fluid's motion and the stationary surface. This phenomenon is characterized by a thin region adjacent to the surface where viscous forces dominate, influencing the fluid's velocity profile. The development of the boundary layer begins at the leading edge of the surface and evolves as the fluid moves downstream.As the fluid flows over the surface, friction between the fluid and the wall slows down...

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 with...

Fluid Pressure over Curved Plate of Constant Width

Fluid Pressure over Curved Plate of Constant Width

When a curved plate of constant width is submerged in a liquid, the pressure acting normal to the plate varies continuously both in magnitude and direction. Calculating the magnitude and location of the resultant force at a point is often challenging for such cases. One of the methods to determine the resultant force and its location involves separately calculating the horizontal and vertical components of the resultant force. This complex calculation can be simplified by representing 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

Genetics versus enviromental factors in pathogenesis of retinoblastoma.

International journal of hygiene and environmental health·2023

Same author

Iris melanoma versus syphilitic iris nodule: A diagnostic challenge.

Journal francais d'ophtalmologie·2023

Same author

Influence of an external electric field on the rapid synthesis of MoO<sub>3</sub> micro- and nanostructures by Joule heating of Mo wires.

RSC advances·2022

Same author

Risk of foot and mouth disease spread through cattle movements in Uganda.

Revue scientifique et technique (International Office of Epizootics)·2022

Same author

Pregnenolone and pregnenolone-methyl-ether rescue neuronal defects caused by dysfunctional CLIP170 in a neuronal model of CDKL5 Deficiency Disorder.

Neuropharmacology·2019

Same author

Quantum nanoconstrictions fabricated by cryo-etching in encapsulated graphene.

Scientific reports·2019

Search research articles

Related Experiment Video

Updated: Jun 29, 2026

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

Published on: January 8, 2014

Bristled shark skin: a microgeometry for boundary layer control?

A W Lang¹, P Motta, P Hidalgo

¹Aerospace Engineering & Mechanics Department, University of Alabama, Box 870280, Tuscaloosa, AL 35487, USA. alang@eng.ua.edu

Bioinspiration & Biomimetics

|October 8, 2008

Summary

Fast-swimming sharks may control boundary layers using bristling scales. This creates vortices and increases flow velocity, potentially delaying drag and improving swimming efficiency.

More Related Videos

Generation of a Simplified Three-Dimensional Skin-on-a-chip Model in a Micromachined Microfluidic Platform

Generation of a Simplified Three-Dimensional Skin-on-a-chip Model in a Micromachined Microfluidic Platform

Published on: May 17, 2021

A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level

A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level

Published on: January 10, 2017

Related Experiment Videos

Last Updated: Jun 29, 2026

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

Microfluidic Fabrication of Polymeric and Biohybrid Fibers with Predesigned Size and Shape

Published on: January 8, 2014

Generation of a Simplified Three-Dimensional Skin-on-a-chip Model in a Micromachined Microfluidic Platform

Generation of a Simplified Three-Dimensional Skin-on-a-chip Model in a Micromachined Microfluidic Platform

Published on: May 17, 2021

A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level

A Microfluidic System with Surface Patterning for Investigating Cavitation Bubble(s)–Cell Interaction and the Resultant Bioeffects at the Single-cell Level

Published on: January 10, 2017

Area of Science:

Fluid Dynamics
Biomimetics
Shark Biology

Background:

Fast-swimming sharks exhibit scale-bristling behavior.
Understanding these mechanisms can inform hydrodynamic designs.

Purpose of the Study:

Investigate boundary layer control in bristled shark skin.
Analyze flow fields and vortex formation.

Main Methods:

Water tunnel experiments with a bristled shark skin model.
Fluorescent dye flow visualization.
Digital Particle Image Velocimetry (DPIV).

Main Results:

Evidence of embedded cavity vortices within scales.
Increased momentum observed in the slip layer above scales.
Flow velocity increase near the skin.

Conclusions:

Bristled scales likely provide boundary layer control.
Mechanisms include separation control and transition delay.
Potential applications in hydrodynamic design.