Monte Carlo Settings

Use a Monte Carlo Settings modeling object to define the settings for the Monte Carlo calculation method.

You can specify the Monte Carlo Settings modeling object in the following simulation objects:

• Radiation

• Solar Heating

• Solar Heating Space

• Orbital Heating

• Free Molecular Heating

In the Monte Carlo Settings dialog box, you control:

• Whether the software uses the Monte Carlo calculation method for the direct calculation of radiative couplings and radiative fluxes, or only for view factor calculations.

• The density of randomly generated rays launched from each element. The minimum number should be set to at least the number of elements in the enclosure.

• The generation of random rays. You can use a standard random number generator or specify a seed value for the random number generator algorithm.

When you select the Calculate View Factors only check box, the software uses:

• The Monte Carlo ray tracing method to compute view factors.

• The Oppenheim or Gebhardt method to calculate radiative couplings.

• Iterative methods to calculate heat loads.

When you deselect the Calculate View Factors only check box, the solver uses the Monte Carlo ray tracing method for the direct calculation of radiative coupling and radiative fluxes by continuing to trace all rays to their extinction. View factors are not computed.

Where do I find it?

Application	Pre/Post
Command Finder	Modeling Objects
Location in dialog box	Type list→Mont Carlo Settings→Create

How do I

Define Radiation

Learn more

Radiation types

Understanding enclosures

Understanding view factors

Understanding the Hemicube Rendering calculation method

Example 1 - Using the All Radiation type

Example 2 - Using multiple Enclosure Radiation type objects

Understanding the Monte Carlo calculation method

Inputs to expressions

Radiative Heating

Solar Heating andSolar Heating Space

Orbital Heating

Free Molecular Heating

Look up more details

Auto-generated expressions

Quick links

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

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

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

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Monte Carlo Settings, Simcenter 3D 2021.1 Series

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