Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Accelerating Fluids01:17

Accelerating Fluids

1.4K
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:
1.4K
Free Jet01:14

Free Jet

238
Free jets describe the flow of liquid exiting a reservoir through an opening into the atmosphere without resistance. The velocity (v) of the liquid jet is derived using Bernoulli's principle and expressed as:
238
Atomic Absorption Spectroscopy: Atomization Methods01:25

Atomic Absorption Spectroscopy: Atomization Methods

662
Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...
662
Bernoulli's Equation for Flow Along a Streamline01:30

Bernoulli's Equation for Flow Along a Streamline

1.1K
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:
1.1K
Newtonian Fluid: Problem Solving01:18

Newtonian Fluid: Problem Solving

392
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...
392
Precipitate Formation and Particle Size Control01:16

Precipitate Formation and Particle Size Control

947
In precipitation gravimetry, the precipitating agent should react specifically or selectively with the analyte. While a specific reagent reacts with the analyte alone, a selective reagent can react with a limited number of chemical species.
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
947

You might also read

Related Articles

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

Sort by
Same author

Bioinspired Ruthenium Arene Complex with Pseudo-Vacant Coordination Sites as Efficient Small-Molecular Antioxidant Enzyme Mimics for Preventing Vascular Restenosis.

Research (Washington, D.C.)·2026
Same author

A case of adult-onset Still disease complicated by macrophage activation syndrome and toxic epidermal necrolysis.

EULAR rheumatology open·2026
Same author

Surveillance of Parvovirus in Free-Roaming Dogs in the Qinling Mountains and Assessment of the Risk of Cross-Species Transmission to Giant Pandas.

Animals : an open access journal from MDPI·2026
Same author

Soft Biaxial Molecular Ferroelectric Thin Films toward Self-Driven X-Ray Detection.

ACS nano·2026
Same author

A Case of Adult-Onset Still's Disease Complicated by Life-Threatening Hepatic Sinusoidal Obstruction Syndrome.

International journal of rheumatic diseases·2026
Same author

High-Fidelity Weak Signal Extraction for Coiled Tubing Acoustic Telemetry via Micro-Lever Suspension and Joint Denoising.

Sensors (Basel, Switzerland)·2026

Related Experiment Video

Updated: Sep 10, 2025

High-resolution Patterning Using Two Modes of Electrohydrodynamic Jet: Drop on Demand and Near-field Electrospinning
09:16

High-resolution Patterning Using Two Modes of Electrohydrodynamic Jet: Drop on Demand and Near-field Electrospinning

Published on: July 10, 2018

9.9K

An Improved Interpolation Method for Simulating Electrohydrodynamic Atomization in the Cone-Jet Regime.

Kofi Owusu-Sekyere1, Yongzhong Chen1, Jiameng Tian1

  • 1School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.

Langmuir : the ACS Journal of Surfaces and Colloids
|August 23, 2025
PubMed
Summary

A new hybrid averaging mean (HAM) interpolation method improves numerical simulations for electrohydrodynamic (EHD) atomization. HAM enhances accuracy in predicting charge distribution and droplet formation compared to traditional methods.

More Related Videos

Glass-Based Devices to Generate Drops and Emulsions
08:45

Glass-Based Devices to Generate Drops and Emulsions

Published on: April 5, 2022

2.8K
Author Spotlight: Enhancing Lipid Nanoparticle Formation Through Turbulent Mixing in Confined Geometries
08:10

Author Spotlight: Enhancing Lipid Nanoparticle Formation Through Turbulent Mixing in Confined Geometries

Published on: August 23, 2024

4.4K

Related Experiment Videos

Last Updated: Sep 10, 2025

High-resolution Patterning Using Two Modes of Electrohydrodynamic Jet: Drop on Demand and Near-field Electrospinning
09:16

High-resolution Patterning Using Two Modes of Electrohydrodynamic Jet: Drop on Demand and Near-field Electrospinning

Published on: July 10, 2018

9.9K
Glass-Based Devices to Generate Drops and Emulsions
08:45

Glass-Based Devices to Generate Drops and Emulsions

Published on: April 5, 2022

2.8K
Author Spotlight: Enhancing Lipid Nanoparticle Formation Through Turbulent Mixing in Confined Geometries
08:10

Author Spotlight: Enhancing Lipid Nanoparticle Formation Through Turbulent Mixing in Confined Geometries

Published on: August 23, 2024

4.4K

Area of Science:

  • Computational fluid dynamics (CFD)
  • Electrohydrodynamics (EHD)
  • Multiphase flow modeling

Background:

  • Electrospray technology in the cone-jet regime is crucial for atomization processes.
  • Traditional interpolation methods like Weighted Arithmetic Mean (WAM) and Weighted Harmonic Mean (WHM) exhibit limitations in stability and computational efficiency for EHD simulations.
  • Accurate numerical simulations are vital for understanding and optimizing EHD atomization.

Purpose of the Study:

  • To introduce and evaluate a novel hybrid averaging mean (HAM) interpolation method for enhancing numerical simulations in EHD atomization.
  • To compare the performance of HAM against traditional WAM and WHM methods in capturing interfacial dynamics and charge characteristics.
  • To improve the accuracy and reliability of computational fluid dynamics (CFD) models for EHD systems.

Main Methods:

  • Development and implementation of the hybrid averaging mean (HAM) interpolation method.
  • Numerical simulations of electrospray in the cone-jet regime using CFD.
  • Comparative analysis of HAM, WAM, and WHM through numerical and experimental benchmarks focusing on charge distribution, meniscus evolution, and droplet formation.

Main Results:

  • The HAM method demonstrates superior accuracy in modeling electric field distributions and interfacial forces compared to WAM and WHM.
  • HAM achieved a 4.5% error in beam current predictions, significantly outperforming WHM (10.4%) and WAM (17.5%).
  • For droplet diameter predictions, HAM showed a 1.2% error, while WHM had 11.8% and WAM had 11.2% error.

Conclusions:

  • The hybrid averaging mean (HAM) interpolation method offers a significant advancement in the accuracy and reliability of numerical simulations for electrohydrodynamic atomization.
  • Selecting appropriate interpolation methods is critical for enhancing the predictive capabilities of CFD models in complex EHD systems.
  • HAM provides a balanced approach, combining the stability of WHM and the simplicity of WAM for improved interfacial dynamics and charge characteristic modeling.