Fluid material conversion

You can change the thermal properties of the original fluid material when the temperature reaches a certain value. You specify a new fluid material, which has the desired properties, and, the threshold temperature at which the fluid material changes.

Note:

The material you defined cannot depend on itself: a material name Fluid_1 cannot convert to Fluid_1.

After the temperature of a 1D fluid element reaches a specified threshold, the thermal solver uses the following material properties from the second fluid material:

• Mass density

• Thermal expansion coefficient

• Thermal conductivity

• Specific heat

• Specific gas constant

• Dynamic viscosity

Where do I find it?

Application	Pre/Post
Prerequisite	You must copy the Material_Conversion.udmpx from %UGII_TMG_DIR%\customization directory to any UGOPEN_STARTUP_DIR folder, such as %UGII_USER_DIR%\startup, %UGII_SITE_DIR%\startup, or %UGII_VENDOR_DIR%\startup before starting NX or Simcenter 3D.
Command Finder	Manage Materials Assign Materials
Location in dialog box	Type list→Fluid→Create →Material Conversion page

How do I

Define a gas using the Redlich-Kwong equation of state

Define a bivariate fluid material property

Define a bivariate fluid material property using a generic entity (legacy)

Model a homogeneous gas mixture

Define a Non-Newtonian Fluid

Model a tracer fluid

Learn more

Bivariate fluid material properties

Immiscible Fluid Mixture

Homogeneous Gas Mixture

Non-Newtonian Fluid

Tracer Fluid

Look up more details

Fluid materialsfor heat transfer and flow analyses

Modeling multiple fluids

Multiple Fluid materials

CSV file format for bivariate fluid material properties (legacy)

Quick links

Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal

Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal boundary conditions

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Fluid material conversion, Simcenter 3D 2021.1 Series

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