Category

# Dynamic Viscosity

25 items

### Dean Number

Wolfram Research

The Dean number is a dimensionless group in fluid mechanics, which occurs in the study of flow in curved pipes and channels.

#### Keywords:

### Archimedes Number

Wolfram Research

The Archimedes number is used to determine the motion of fluids due to density differences. It is a dimensionless number defined as the ratio of external forces to internal viscous forces.

#### Keywords:

### Acceleration Number

Wolfram Research

The acceleration number characterizes acceleration flow.

#### Keywords:

### Bagnold Number

Wolfram Research

The Bagnold number is the ratio of grain collision stresses to viscous fluid stresses in a granular flow with interstitial Newtonian fluid.

#### Keywords:

### Bejan Number for Heat Transfer

Wolfram Research

The Bejan number is the dimensionless pressure drop along a channel of length L.

#### Keywords:

### Blasius Boundary Layer Thickness

Wolfram Research

A Blasius boundary layer describes the steady two-dimensional laminar boundary layer that forms on a semi-infinite plate, which is held parallel to a constant unidirectional flow.

#### Keywords:

### Blasius Displacement Thickness

Wolfram Research

A Blasius boundary layer describes the steady two-dimensional laminar boundary layer that forms on a semi-infinite plate, which is held parallel to a constant unidirectional flow.

#### Keywords:

### Brinkman Number

Wolfram Research

The Brinkman number is a dimensionless number related to heat conduction from a wall to a flowing viscous fluid, commonly used in polymer processing.

#### Keywords:

### Brinkman Rheological Number

Wolfram Research

The Brinkman number is a dimensionless number related to heat conduction from a wall to a flowing viscous fluid, commonly used in polymer processing.

#### Keywords:

### Brownell–Katz Number by Viscosity

Wolfram Research

The Brownell–Katz number is a combination of capillary number and Bond number.

#### Keywords:

### Capillary Number

Wolfram Research

The capillary number represents the relative effect of viscous forces versus surface tension acting across an interface between a liquid and a gas, or between two immiscible liquids.

#### Keywords:

### Catheter Flow Rate

Wolfram Research

The catheter flow rate refers to the liquid volume flow from a catheter.

#### Keywords:

### Darcy's Law Using Pressure Difference

Wolfram Research

Darcy's law is an equation that describes the flow of a fluid through a porous medium.

#### Keywords:

### Drag Force on a Sphere for Stokes Flow

Wolfram Research

Stokes flow is a type of fluid flow where advective inertial forces are small compared with viscous forces.

#### Keywords:

### Hydraulic Conductivity

Wolfram Research

Hydraulic conductivity is a property of vascular plants, soils and rocks that describes the ease with which a fluid (usually water) can move through pore spaces or fractures. It depends on the intrinsic permeability o...

#### Keywords:

### Mean Free Path Using Pressure

Wolfram Research

The mean free path is the average distance traveled by a moving particle (such as an atom, a molecule or a photon) between successive impacts (collisions), which modifies its direction, energy or other particle proper...

#### Keywords:

### Mean Free Path Using Electron Density

Wolfram Research

The mean free path is the average distance traveled by a moving particle (such as an atom, a molecule or a photon) between successive impacts (collisions), which modifies its direction, energy or other particle proper...

#### Keywords:

### Poiseuille's Law

Wolfram Research

Poiseuille's law is a physical law that gives the pressure drop in an incompressible and Newtonian fluid in laminar flow flowing through a long cylindrical pipe of constant cross-section.

#### Keywords:

### Prandtl Number Using Thermal Conductivity

Wolfram Research

The Prandtl number is a dimensionless number defined as the ratio of momentum diffusivity to thermal diffusivity.

#### Keywords:

### Rayleigh Number Using Thermal Conductivity

Wolfram Research

The Rayleigh number for a fluid is a dimensionless number associated with buoyancy-driven flow, also known as free convection or natural convection.

#### Keywords:

### Reynolds Number Using Dynamic Viscosity

Wolfram Research

The Reynolds number is an important dimensionless quantity in fluid mechanics used to help predict flow patterns in different fluid flow situations.

#### Keywords:

### Schmidt Number Using Dynamic Viscosity

Wolfram Research

The Schmidt number is a dimensionless number defined as the ratio of momentum diffusivity (kinematic viscosity) and mass diffusivity, and is used to characterize fluid flows in which there are simultaneous momentum an...

#### Keywords:

### Suratman Number

Wolfram Research

The Suratman number is a dimensionless number used in the characterization of free-surface fluid dynamics. It represents a ratio of surface tension to the momentum transport (especially dissipation) inside a fluid.

#### Keywords:

### Sutherland's Formula

Wolfram Research

Sutherland's formula can be used to derive the dynamic viscosity of an ideal gas as a function of the temperature.

#### Keywords:

### Viscosity Conversion Formula

Wolfram Research

The kinematic viscosity is the ratio of the dynamic viscosity μ to the density of the fluid.