Which of the following is a shear-thickening fluid?a)Bingham plasticb)Thixotropicc)Dilatantd)PseudoplasticCorrect answer is option 'C'. Can you explain this answer?

Question

Answer

Shear-thickening fluids are non-Newtonian fluids whose viscosity increases with an increase in shear rate or stress. Dilatant fluids are an example of shear-thickening fluids.

Explanation:
Dilatant fluids are those fluids whose viscosity increases with the increase in the shear rate. In such fluids, the particles within the fluid tend to form clusters or networks that resist deformation. As a result, the fluid becomes more viscous and resists flow. When the shear rate is low, these particles are not able to form a network and the fluid behaves like a Newtonian fluid. However, when the shear rate is increased, the particles start to form clusters, resulting in an increase in viscosity.

Examples of dilatant fluids include cornstarch suspended in water and quicksand. When these fluids are subjected to shear forces, they become more viscous and resist flow. This property makes dilatant fluids useful in certain applications, such as body armor and protective equipment.

Conclusion:
In conclusion, dilatant fluids are an example of shear-thickening fluids. They exhibit an increase in viscosity with an increase in shear rate or stress. This unique property makes them useful in several applications, including protective equipment and body armor.

Answer

Explanation: Shear-thickening fluids are those for which it gets harger to strain it at high values of shear stresses. The relation between shear stress Z and velocity gradient  of a shear-thickening fluid is given by    where A and n are constants and n > 1. This relation is followed by Dilatants.

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