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

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.

Hydrostatic Pressure Force on a Curved Surface

Hydrostatic Pressure Force on a Curved Surface

Hydrostatic pressure on curved surfaces is a fundamental concept in fluid mechanics with broad applications in the civil engineering field. When fluid is in contact with a curved surface, as in a reservoir, dam, or storage tank, it exerts pressure that varies in magnitude and direction along the curved surface. To assess the total hydrostatic force exerted by the fluid on a curved structure, engineers typically isolate the fluid volume adjacent to the surface and analyze the forces acting on...

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 Flat Plate of Variable Width

Fluid Pressure over Flat Plate of Variable Width

When a flat plate is submerged in a fluid, the fluid exerts pressure on the plate. This pressure can lead to many different phenomena, including drag and buoyancy. To understand the behavior of the fluid over a flat plate of variable width, it is essential to analyze the distribution of the pressure exerted.
The pressure distribution on the plate can be calculated by determining the force that acts on a differential area strip of the plate. Thus, the magnitude of the force is equal to the...

Newtonian Fluid: Problem Solving

Newtonian Fluid: Problem Solving

Newtonian fluids exhibit a constant viscosity, meaning their shear stress and shear strain rate are directly proportional. This property ensures a predictable and stable response to applied forces, maintaining a linear relationship between force and flow. Examples include water, air, and light oils, consistently demonstrating this proportional behavior regardless of external conditions.
A velocity gradient forms within the fluid when a Newtonian fluid is placed between two parallel plates, with...

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:

You might also read

Related Articles

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

Sort by

Same author

Ferrofluid flow in inclined vessel with temperature-dependent properties for tumour therapy.

Computer methods in biomechanics and biomedical engineering·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jul 9, 2026

Magnetically Induced Rotating Rayleigh-Taylor Instability

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

Spin-Up Ferrofluid Dynamics over an Off-Centered Rotating Rough Surface.

Anupam Bhandari¹

¹Department of Mathematics, Applied Science Cluster, UPES, Dehradun 248007, Uttarakhand India.

Langmuir : the ACS Journal of Surfaces and Colloids

|July 7, 2026

Summary

This study models ferrofluid spin-up flow over an off-centered rough surface, considering magnetic fields and micropolar effects. Findings aid in optimizing ferrofluid applications like magnetic cooling and drug delivery.

More Related Videos

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

Published on: February 22, 2018

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Published on: November 7, 2017

Related Experiment Videos

Last Updated: Jul 9, 2026

Magnetically Induced Rotating Rayleigh-Taylor Instability

Magnetically Induced Rotating Rayleigh-Taylor Instability

Published on: March 3, 2017

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

Published on: February 22, 2018

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

Published on: November 7, 2017

Area of Science:

Fluid Dynamics
Magnetohydrodynamics
Materials Science

Background:

Ferrofluids exhibit unique rheological and heat-transfer properties crucial for advanced applications.
Understanding spin-up flow dynamics is key for managing stress and predicting behavior in rotating systems.
Existing models often simplify surface geometry and fluid rheology, necessitating more comprehensive studies.

Purpose of the Study:

To develop a theoretical framework for analyzing ferrofluid spin-up flow over an off-centered, rough rotating surface under a magnetic field.
To incorporate micropolar rheological effects (bulk spin viscosity, shear spin viscosity, vortex viscosity) into the flow model.
To investigate the influence of off-centering and surface roughness on flow characteristics and heat transfer.

Main Methods:

Governing equations for mass, momentum, energy, and spin-up flow were formulated.
Micropolar rheological effects and induced flow components due to off-centering were included.
Nondimensionalization followed by numerical solution using the finite element method.

Main Results:

Velocity, induced flow, microrotation, and temperature profiles were analyzed for various physical parameters.
The impact of magnetic fields and micropolar properties on stress and heat transfer was quantified.
Numerical solutions were validated, ensuring reliability of the obtained results.

Conclusions:

The theoretical model provides a robust method for predicting ferrofluid behavior in complex rotating systems.
The study highlights the significant influence of magnetic fields, off-centering, and micropolar parameters on ferrofluid dynamics.
Results offer valuable insights for optimizing ferrofluid applications in engineering and medicine.