Question

Viscosity has an influence on: (choose all that apply )

Laminar flow

Fluid mechanics

Sedimentary rate

Streamlined flow

Answer 1

1.Laminar flow. Flow rate is directly proportional to the pressure difference , and inversely proportional to the length of the tube and viscosity of the fluid.

2.fluid mechanics.Viscosity is the property by virtue of which fluid offers resistance against the flow or shear deformation. In other words, it is the reluctance of the fluid to flow. Viscous force is that force of resistance offered by a layer of fluid for the motion of another layer over it.

When two solid bodies in contact move relative to each other, a friction force develops at the contact surface in the direction opposite to motion. To move a table on the floor, for example, we have to apply a force to the table in the horizontal direction large enough to overcome the friction force. The magnitude of the force needed to move the table depends on the friction coefficient between the table and the floor. The situation is similar when a fluid moves relative to a solid or when two fluids move relative to each other. We move with relative ease in air, but not so in water. Moving in oil would be even more difficult, as can be observed by the slower downward motion of a glass ball dropped in a tube filled with oil. It appears that there is a property that represents the internal resistance of a fluid to motion or the “fluidity,” and that property is the viscosity. The force a flowing fluid exerts on a body in the flow direction is called the drag force, and the magnitude of this force depends, in part, on viscosity.

3 sedimentation rate.The ESR and plasma viscosity generally increase in parallel.1 Plasma viscosity is, however, primarily dependent on the concentration of plasma proteins, especially fibrinogen.

4. Streamlined flow. Streamlined flow is more likely for liquid with more viscosity as sturdy flow can only be achieved with slow speed. It's true that viscosity causes slow speed of liquid but viscosity is due to relative motion of layers of fluid from a fixed point.