Duct Flow Boundary Conditions dialog box – Duct Flow Properties options

Option	Description
Name	Defines the simulation object's name.Description opens an editor that lets you type a description for the simulation object.
Destination Folder
Simulation Object 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 to Apply Duct Flow Properties to
Group Reference	Lets you apply the duct properties to a group.For more information, see Group Reference options.
Select Object	Lets you select a 1D Duct element, a curve, or polygon edge where you want to define the duct properties.Excluded lets you remove individual entities from within your selected object.
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.
Duct Flow Properties
Wall Friction	Specifies the method to define the surface drag (friction) of the interior of the duct.Smooth-With FrictionApplies the drag on a smooth wall. The flow solver computes the drag force by integrating the shear stress over the wall surface.Rough Applies drag on a rough wall. The roughness effect is included in computation using the Sand Grain Roughness Height value that you specify. Surface roughness tends to increase convection heat transfer by introducing flow turbulence.Note: The specified Sand Grain Roughness Height value must not exceed the size of the fluid elements next to the surface.Head Loss MultiplierDefines the correction factor for roughness. Specify its magnitude in the Flow Resistance Multiplier box. For more information, see Additional magnitude options.Head Loss OverrideModels roughness as an overall head loss, ignoring the length and flow section of the elements. The specified value is assigned to each duct element of the selection. You specify the head loss value in Duct Head Loss modeling object that you select from the Head Loss list. Choose a previously defined Duct Head Loss modeling object from the list or click Create Modeling Object to create a new one. See Duct Head Loss.

Learn more

Duct Flow Boundary Conditions

Look up more details

Duct Flow Boundary Conditions dialog box– Duct to 3D Flow Connection options

Duct Flow Boundary Conditions dialog box– Duct Fan/Pump options

Duct Flow Boundary Conditions dialog box– Duct Opening options

Duct Flow Boundary Conditions dialog box– Duct Total Pressure options

Duct Flow Boundary Conditions dialog box– One-Sided Total Temperature Effects

Duct Flow Boundary Conditions dialog box– Two-Sided Total Temperature Effects

Duct Flow Boundary Conditions dialog box– Duct Label options

Total temperature effects

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

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

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

Duct Flow Boundary Conditions dialog box – Duct Flow Properties options, Simcenter 3D 2021.1 Series

© 2020 Siemens

window.mainLanguage="en_US"

window.delivId=""

window.projectId=""

MathJax.Hub.Config({ TeX: { extensions: ["autoload-all.js"] }, tex2jax: { displayMath: [ ] }, "SVG": { scale: 125 } });