Table of Contents
- 1 What is the relationship between viscosity and velocity?
- 2 Does viscosity depend on volume?
- 3 What is the relationship between bulk viscosity coefficient λ and the dynamic viscosity coefficient μ )?
- 4 How are viscosity and fluidity related to each other Class 9?
- 5 What is the relationship between viscosity and specific gravity?
What is the relationship between viscosity and velocity?
A simple formula representing this relationship is: (1-1) where v equals velocity, η equals viscosity, and r is the hydrodynamic radius of the molecule. Thus, the force sensed by a molecule increases as the velocity, viscosity, or size of the molecule increases.
What is the relationship between viscosity?
The more usual form of this relationship, called Newton’s equation , states that the resulting shear of a fluid is directly proportional to the force applied and inversely proportional to its viscosity. The similarity to Newton’s second law of motion (F = ma) should be apparent….(dynamic) viscosity.
| η = | F/A |
|---|---|
| dvx/dz |
Does viscosity depend on volume?
The more viscous a fluid is the more the volume it occupies.
Are viscosity and density related?
In fluid dynamics, viscosity is the parameter to measure the thickness or thinness of any given fluid. Density is the measure of spaces between two particles in a given fluid. Viscosity and density are the characteristics of a fluid, but there is no direct relation between viscosity and density.
What is the relationship between bulk viscosity coefficient λ and the dynamic viscosity coefficient μ )?
What is the relationship between bulk viscosity coefficient (λ) and the dynamic viscosity coefficient (μ)? Clarification: The bulk viscosity coefficient represents fluid compressibility effects. λ=(-frac{2}{3}) μ is the relationship between the bulk viscosity coefficient and the dynamic viscosity coefficient.
Is viscosity proportional to density?
NO! Since density is NOT a monotonic function of cohesivity, viscosity can only by directly proportional to density over some relatively small portions/segments of a fluid’s density range. In yet other portions of any given fluids density range, it can be a higher power law or even inversely proportional.
Viscosity is defined as the ability of liquid to resist its flow while fluidity refers to the tendency to allow its flow easily. These two terms are opposite in their meaning. A less viscous liquid will have more fluidity and vice versa.
What is the difference between the density and the viscosity?
In simpler words, density = number of molecules x molecular weight/volume occupied, while the viscosity is a measurement of the inter-molecular forces and molecule shapes. Viscosity tells you the “friction” between two layers of the given fluid, while density varies slightly with temperature, viscosity changes rapidly.
What is the relationship between viscosity and specific gravity?
The really important thing to keep in mind is that there is no correlation between viscosity and specific gravity. We measure specific gravity with a hydrometer.
What is the difference between viscosity and coefficient of viscosity?
Viscosity is a resistance induce between two adjacent layer of liquid while it flows. While coefficient of viscosity is tendency of that resistance.