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The following results are obtained on shear stress (τ) and rate of deformation (du/dy) at constant temperature for a fluid.
The above fluid is classified as
The above fluid is classified as
- a)Newtonian
- b)Non-Newtonian
- c)Ideal plastic
- d)Thixotropic
Correct answer is option 'C'. Can you explain this answer?
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The following results are obtained on shear stress (τ) and rate of...
The mathematical model for describing the behavior of fluids is the Power-Law model, which is given as:
If
n = 1; ⇒ fluid is Newtonian Fluid.
n ≠ 1; ⇒ fluid is non-Newtonian
n < 1; ⇒ fluid is called Pseudoplastic fluids.
n > 1; ⇒ fluids called dilatants fluids.
The mathematical model for describing the ideal Plastic fluid is given as:
From the given table:
If du/dy = 0 then τ = 10 i.e. non – zero ⇒ Fluid can not be Newtonian and non-Newtonian
Further Shear stress is a linear function of du/dy, so the fluid is ideal plastic.
If
n = 1; ⇒ fluid is Newtonian Fluid.
n ≠ 1; ⇒ fluid is non-Newtonian
n < 1; ⇒ fluid is called Pseudoplastic fluids.
n > 1; ⇒ fluids called dilatants fluids.
The mathematical model for describing the ideal Plastic fluid is given as:
From the given table:
If du/dy = 0 then τ = 10 i.e. non – zero ⇒ Fluid can not be Newtonian and non-Newtonian
Further Shear stress is a linear function of du/dy, so the fluid is ideal plastic.
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The following results are obtained on shear stress (τ) and rate of deformation (du/dy)at constant temperature for a fluid.The above fluid is classified asa)Newtonianb)Non-Newtonianc)Ideal plasticd)ThixotropicCorrect answer is option 'C'. Can you explain this answer?
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