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

Fluid Pressure over Flat Plate of Constant Width01:05

Fluid Pressure over Flat Plate of Constant Width

2.5K
When a body is submerged in water, it experiences fluid pressure acting normal on its surface and distributed over its area. For better design structures, it is crucial to determine the magnitude and location of the resultant force acting on the surface. In the case of a rectangular plate of constant width submerged in water, the pressure increases with depth, resulting in a linearly varying trapezoidal pressure distribution from the upper to the lower edge of the plate.
The resultant force...
2.5K
Fluid Pressure over Flat Plate of Variable Width01:02

Fluid Pressure over Flat Plate of Variable Width

2.1K
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...
2.1K
Numerical Calculations01:24

Numerical Calculations

1.2K
In engineering applications, the representation of the numerical value is critical. Presenting or reporting the answer is one of the essential parts of engineering practices. Numerical calculations are performed using handheld calculators or computers since numerically accurate answers are always preferred.
The solution to a problem is obtained using different methods. While manually solving algebraic symbols is one of the most common methods, the graphical method is often preferred. Computers...
1.2K
Pilot and Numeric Relaying01:21

Pilot and Numeric Relaying

491
Pilot relaying is a type of differential protection used in power systems. It compares electrical quantities at the terminals of equipment via a communication channel instead of direct relay interconnection. This method is essential for transmission lines where the terminals are far apart, typically up to 80 km for lines with 69 to 115 kV ratings. Four types of communication channels are used for pilot relaying:
491
How Data are Classified: Numerical Data00:59

How Data are Classified: Numerical Data

38.0K
Data that are countable or measurable in specific units are called numerical or quantitative data. Quantitative data are always numbers. Quantitative data are the result of counting or measuring the attributes of a population. Amount of money, pulse rate, weight, number of people living in a town, and number of students who opt for statistics are examples of quantitative data.
Quantitative data may be either discrete or continuous. All quantitative data that take on only specific numerical...
38.0K
pH Scale02:41

pH Scale

79.7K
Hydronium and hydroxide ions are present both in pure water and in all aqueous solutions, and their concentrations are inversely proportional as determined by the ion product of water (Kw). The concentrations of these ions in a solution are often critical determinants of the solution’s properties and the chemical behaviors of its other solutes. Two different solutions can differ in their hydronium or hydroxide ion concentrations by a million, billion, or even trillion times. A common means of...
79.7K

You might also read

Related Articles

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

Sort by
Same author

The genomic natural history of the aurochs.

Nature·2024
Same author

Vittrup Man-The life-history of a genetic foreigner in Neolithic Denmark.

PloS one·2024
Same author

Publisher Correction: Population genomics of post-glacial western Eurasia.

Nature·2024
Same author

100 ancient genomes show repeated population turnovers in Neolithic Denmark.

Nature·2024
Same author

Population genomics of post-glacial western Eurasia.

Nature·2024
Same author

Genomic Steppe ancestry in skeletons from the Neolithic Single Grave Culture in Denmark.

PloS one·2021

Related Experiment Video

Updated: Jan 30, 2026

Fast Imaging Technique to Study Drop Impact Dynamics of Non-Newtonian Fluids
10:09

Fast Imaging Technique to Study Drop Impact Dynamics of Non-Newtonian Fluids

Published on: March 5, 2014

12.9K

Fluid dynamics in a full-scale flat sheet MBR, an experimental and numerical study.

Lasse Sørensen1, Thomas Ruby Bentzen1

  • 1Department of Civil Engineering, Aablorg University, Aalborg Øst, Denmark

Water Science and Technology : a Journal of the International Association on Water Pollution Research
|January 11, 2019
PubMed
Summary

Computational fluid dynamics models membrane bioreactor fouling. Minimizing membrane deflection is crucial, as a 2 mm deflection reduced wall shear stress by 40%, impacting MBR performance.

More Related Videos

Author Spotlight: Advancing Bone Cell Activity Research with Zebrafish Scales
02:30

Author Spotlight: Advancing Bone Cell Activity Research with Zebrafish Scales

Published on: January 10, 2025

6.1K
Author Spotlight: Investigating mRNA Spatial Distribution in Drosophila Muscle Tissue
10:22

Author Spotlight: Investigating mRNA Spatial Distribution in Drosophila Muscle Tissue

Published on: September 8, 2023

2.1K

Related Experiment Videos

Last Updated: Jan 30, 2026

Fast Imaging Technique to Study Drop Impact Dynamics of Non-Newtonian Fluids
10:09

Fast Imaging Technique to Study Drop Impact Dynamics of Non-Newtonian Fluids

Published on: March 5, 2014

12.9K
Author Spotlight: Advancing Bone Cell Activity Research with Zebrafish Scales
02:30

Author Spotlight: Advancing Bone Cell Activity Research with Zebrafish Scales

Published on: January 10, 2025

6.1K
Author Spotlight: Investigating mRNA Spatial Distribution in Drosophila Muscle Tissue
10:22

Author Spotlight: Investigating mRNA Spatial Distribution in Drosophila Muscle Tissue

Published on: September 8, 2023

2.1K

Area of Science:

  • Environmental Engineering
  • Fluid Dynamics
  • Biotechnology

Background:

  • Fouling mitigation in membrane bioreactors (MBRs) relies on fluid dynamics.
  • Computational fluid dynamics (CFD) is essential for optimizing MBR systems.
  • Understanding fluid dynamics is key to improving MBR efficiency and longevity.

Purpose of the Study:

  • To validate a computational fluid dynamics model for flat sheet membranes in MBRs.
  • To assess the impact of membrane deflection on fluid dynamics and fouling mitigation.
  • To optimize MBR operating conditions by analyzing wall shear stress.

Main Methods:

  • Utilized the Eulerian multiphase method for modeling.
  • Validated the model against laser Doppler anemometry (LDA) measurements.
  • Compared Eulerian multiphase with the Volume of Fluid (VOF) approach, achieving <2% error in wall shear stress.

Main Results:

  • The VOF model indicated significant contribution of horizontal components to wall shear stress.
  • Applied the validated model to a full-scale MBR setup.
  • A 2 mm membrane deflection in a 7 mm gap reduced average wall shear stress by 40%.

Conclusions:

  • Accurate fluid dynamics modeling is vital for effective fouling control in MBRs.
  • Minimizing membrane sheet deflection is critical for maintaining optimal MBR operating conditions.
  • CFD analysis provides insights for enhancing MBR design and performance.