Thermal Convecting Zone dialog box

Use this dialog box to set options for the Thermal Void load for the Simcenter 3D Thermal/Flow, Electronic Systems Cooling, and Multiphysics solvers.

Name
Name	Sets the name for the thermal convecting zone. The name appears in the Simulation Navigator and graphics window.
Boundary Condition ID	Sets a numerical ID, which you can use as an argument in some thermal-flow functions in the CAE expression system. For more information, see Boundary condition ID in expressions.
Description	Lets you enter a description for the thermal convecting zone.
Destination Folder
Load Container	Specifies the folder in the Simulation Navigator in which the boundary condition will be stored. The list includes the root container and existing folders that you created using the New Folder command. Examples of a root container include Load Container, Constraint Container, and Simulation Object Container.
Folder Manager	Displays a hierarchical listing of existing folders. To create a new folder, right-click any level of the hierarchy and choose New Folder.
Region
Group Reference	Applies the boundary condition to the selected group. For more information, see Group Reference options.
Select Object	Lets you select the faces, edges, or elements to define the fluid-solid interface of the thermal convecting zone.Excluded lets you remove individual entities from within your selected object. The software does not apply the boundary condition to the excluded elements.Note: The Element Selection Filtering options are available when the Type Filter list on the Top Border bar is set to Elements.
Stacked Smart Selector Methods	Opens the Smart Selector Methods dialog box where you can specify a progression of smart selection filters.For more information, see Smart Selector Methods dialog box.
Environment
Fluid Materials	Assigns a fluid material or multiple fluid material to represent the fluid environment.Select a material from the list of materials assigned to the model, or click Choose material to define a new material.
Temperature	Sets the temperature of the fluid environment. For more information, see Additional magnitude options.
Pressure	Sets the pressure of the fluid environment. For more information, see Additional magnitude options.
Heat Transfer
Area for Internal Edges	Specifies how to compute the convective area for loads applied to the internal edges of 2D elements having different thicknesses on either side.Subtract ThicknessesSubtracts the thicknesses of the internal edges and takes the absolute value of the subtraction.Add ThicknessesAdds the thicknesses of the internal edges and takes the absolute value of the addition.
Area Correction	Specifies how the solver corrects the convective area.NoneDoes not account for area correction.FactorDefines the area correction factor to compute the corrected convective area. You specify the value in the Area Correction Factor box.OverrideDefines the corrected convective area. You specify the value in the Area Override box. This option is only available when Area for Internal Edges is set to Add Thicknesses.
Type	Specifies whether you use Heat Transfer Coefficient or Heat Flux to define heat transfer. Enter your value in the Heat Transfer Coefficient or Heat Flux box.For more information, see Additional magnitude options.
Rotational Effects	Specifies how to account for total temperature effects in convective heat transfer due to rotating parts.Neglect Wall RotationUse this option when the components that surround the fluid are stationary or when the components are rotating at low speeds, for example in heat transfer to a stator. The specified fluid temperature is assumed to be the absolute total temperature, Tt,abs.Correct for Wall RotationUse this option when the components that surround the fluid are rotating. The specified fluid temperature is assumed to be the absolute total temperature.Relative Temperature Reference FrameUse this option when the components that surround the fluid are rotating. The specified fluid temperature is assumed to be the relative total temperature, Tt,rel.
Swirl Input Type	Specifies how the swirl of the fluid environment is defined. The thermal solver uses the specified value to relate total temperatures and relative temperatures.Swirl VelocityDefines the swirl velocity, vΦ. You specify the value in the Swirl Velocity box.Swirl RatioDefines the swirl ratio, ωfluid/ωrotor. You specify the value in the Swirl Ratio box.Relative Temperature DifferenceDefines the relative temperature difference, ΔTrel. You specify the value in the Relative Temperature Difference box.For more information, see Additional magnitude options.

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Create a Thermal Convecting Zone load

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Thermal Convecting Zone

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Total temperature effects

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Thermal Convecting Zone dialog box, Simcenter 3D 2021.1 Series

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