Shear Forces Explained: Hydraulic Jump

AI Thread Summary
Shear forces are defined as forces acting tangentially to a surface, creating shear stress rather than acting perpendicular to it. In the context of hydraulic jump, these forces can be influenced by cohesion forces in fluid dynamics. The discussion also touches on the potential confusion between hydraulic jump and hydraulic hammer, which are distinct phenomena. A helpful resource for further understanding is provided, linking to a relevant educational site. Overall, the conversation aims to clarify the relationship between shear forces and hydraulic jump.
Renato Rebouças
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Please, say me what are shear forces. I've been looking for it because I was studying a phenomenon called hydraulic jump. In this example, are these forces caused by the cohesion forces?
 
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I don't know any of this stuff myself, but I always sympathize with someone who has no resposes to a post. Maybe http://astron.berkeley.edu/~jrg/ay202/node17.html can help?
 
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A shear force per unit area (i.e, shear stress) acts tangential to a surface, rather than in the normal direction to the surface.
 
"Hydraulic jump?" You don't, by chance, mean hydraulic hammer?
 

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