Fluid Objects Palette

The Fluid Objects Palette contains objects for building dynamic models of hydraulic flow involving tanks, pipes, pumps, etc.  The flow rate in the system is calculated by solving the unsteady Bernoulli equation.

The following objects are provided in the Fluid Objects palette.

Fluid Objects Palette

Object

Description

Fluid

Defines a specific fluid and its properties.

FluidFlow

Computed flow of a specified fluid between a source and a destination.

FluidFixedFlow

Constant flow to/from a specified tank.

FluidTank

Cylindrical vessel for storing fluid.

FluidPipe

Cylindrical conduit for transporting fluid.

FluidCentrifugalPump

Type of pump with a rotating impeller.

Many fluid objects use the following inputs and outputs.

Fluid Object Inputs

Keyword

Description

Previous

The upstream component that feeds this component.

Diameter

The hydraulic diameter of the component.  Equal to the inside diameter of a pipe with a circular cross-section.

Fluid Object Outputs

Output Name

Description

FlowArea

The cross-sectional area of the component.

Velocity

The velocity of the fluid within the component.

ReynoldsNumber

The Reynolds Number for the fluid within the component.  Equal to (velocity)(diameter)/(kinematic viscosity).

DynamicPressure

The dynamic pressure of the fluid flow.  Equal to (0.5)(density)(velocity^2).

InletPressure

The static pressure at the component's inlet.

OutletPressure

The static pressure at the component's outlet.