What is Shear Flow? Does it Impact Viscosity?

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Discussion Overview

The discussion centers around the concept of shear flow, particularly in the context of different materials such as solids, liquids, and granular particles. Participants are exploring the definition of shear flow and its relationship with viscosity, especially in specific scenarios like flow in a rectangular tube with a spherical particle.

Discussion Character

  • Exploratory, Conceptual clarification

Main Points Raised

  • One participant seeks a clear definition of shear flow and its implications for viscosity.
  • Another participant notes that shear flow can occur in various states of matter, suggesting the need for specificity in the discussion.
  • A third participant provides a general definition of shear, indicating it refers to motion parallel to a reference plane.
  • A later post requests clarification on shear flow specifically in the context of a rectangular tube containing a spherical particle, along with questions about the presence of viscosity in that scenario.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the definition of shear flow or its relationship with viscosity, and multiple competing views remain regarding the specifics of the concept.

Contextual Notes

Some participants have not specified the conditions under which shear flow and viscosity are being discussed, leading to potential ambiguity in the definitions and applications.

germana2006
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What is shear flow? Hat this flow viscosity? ....

Thank you
 
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Shear flow in a solid, liquids, granular particles ...? You need to be more specific.
 
Shear generally means parallel to a plane of reference - typically a surface of some sort.

Claude.
 
I want to know only what it means shear flow, for example in a rectangular tube with a sphere particle. And then if there are viscosity or not.
 

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