Civil Engineering - GATE Exam Questions - Discussion
Discussion Forum : GATE Exam Questions - Section 1 (Q.No. 12)
12.
Shear stress develops on a fluid element, if :
Discussion:
3 comments Page 1 of 1.
Asaithambi said:
9 years ago
Fluid element considering:
i) Newtonian fluid=shear stress direct proportional to shear strain or velocity gradient(real fluid),n=1.
ii) Non - Newtonian fluid=shear stress not proportional to shear strain or velocity gradient(real fluid),n<1.
i) Newtonian fluid=shear stress direct proportional to shear strain or velocity gradient(real fluid),n=1.
ii) Non - Newtonian fluid=shear stress not proportional to shear strain or velocity gradient(real fluid),n<1.
Varalakshmi said:
9 years ago
Shear stress develops on a fluid element when a fluid is viscous and if it is in motion.
P.Maheswari said:
1 decade ago
Because shear stress of a fluid occurs only in dynamic equilibrium state. That means the fluid should be in motion. Fluid is viscous means viscosity occurs in motion condition only. So, when a fluid is viscous shear stress develops.
(1)
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