Measuring the critical capillary number

Click For Summary

Discussion Overview

The discussion centers around measuring the critical capillary number in the context of fluid mechanics, specifically related to water flooding tests in micro single capillary ducts. The participant is investigating the displacement of oil and has gathered various fluid properties, seeking guidance on whether an equation exists for calculating the critical capillary number or if it can only be determined through numerical or experimental methods.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant inquires about methods to measure the critical capillary number, mentioning specific experimental conditions and fluid properties measured.
  • Another participant asks for clarification on the field of study to better direct the discussion.
  • A later reply confirms the field as fluid mechanics and identifies the participant as a university researcher working on microchannels.
  • Additional resources are provided, including links to discussions on flow rate versus viscosity and general fluid flow, which may be relevant to the original inquiry.

Areas of Agreement / Disagreement

Participants generally agree on the relevance of fluid mechanics to the topic, but there is no consensus on the specific methods for measuring the critical capillary number, as the original inquiry remains unresolved.

Contextual Notes

The discussion does not clarify whether an established equation exists for the critical capillary number or the specific conditions under which it can be measured. There may be limitations related to the definitions of the critical capillary number and the applicability of the provided resources.

Who May Find This Useful

Researchers and students in fluid mechanics, particularly those working with microfluidics or capillary flow phenomena, may find this discussion relevant.

Talal
Messages
6
Reaction score
4
Is there a way to measure the critical capillary number?

I am running water flooding tests in micro single capillary ducts. I am displacing oil in my experiment, and my channel should be oil wet.

I was able to measure the properties of both fluids, this includes; Kin and Dyn Viscosities, density, interfacial tension and fluid-fluid contact angle.

Is there an equation to measure the CC number or can the value only be obtained through either numerical or experimental processes?

Help is very much appreciated.
 
Engineering news on Phys.org
what field do you work in or are studying?

We’re determining where your post will get the most views and possibly responses.

From the looks of it, it seems to be Fluid Mechanics but we’re not sure.
 
Hello,
Apologies for the late reply. It is Fluid mechanics. I am working on microchannels, and I am a University Researcher.
 

Similar threads

Measuring Height of Meniscus in Capillary Action
  • · Replies 1 ·
Replies
1
Views
4K
Surface roughness in 2D sinusoidal corrugation
  • · Replies 1 ·
Replies
1
Views
5K
Hydrodynamic forces on a foil, Reynolds number, viscosity
  • · Replies 17 ·
Replies
17
Views
5K
Capillary Action: Physically Possible Forms
  • · Replies 3 ·
Replies
3
Views
7K
Graduate Shear in fluids: What is measured and called - strain?
  • · Replies 7 ·
Replies
7
Views
3K
Graduate What is the true meaning of weak measurements in quantum mechanics?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Progress In Calculating The HLbL Contribution To Muon g-2
  • · Replies 0 ·
Replies
0
Views
3K
Flow rate measurement: Venturi vs Sharp edged circular orifice. Help
  • · Replies 1 ·
Replies
1
Views
6K
Programs How good is this applied math program?
  • · Replies 13 ·
Replies
13
Views
4K
Graduate MOND Theory Primer: Stacy McGaugh's Research Program Explored
  • · Replies 11 ·
Replies
11
Views
5K