Modeling the interface between ducts and 3D fluid elements

• Use a Duct or Duct with Thick Walls types of 1D mesh collector.

• Make sure a node from the duct mesh lies on the face of the 3D fluid mesh.

• Apply a Duct to 3D Flow Connection type of the Duct Flow Boundary Conditions simulation object to the face of the 1D-3D interface.

• If you model the duct walls, make sure that you connect them to the rest of the model using thermal couplings.

How do I

Create a duct flow network

Create a thick wall duct flow network

Create a pressureless duct network

Create a duct flow network and model heat transfer using 2D shells

Create a duct flow network and model heat transfer using 3D solid elements

Connect the duct network to the 3D flow domain

Learn more

1D duct flow networks

Duct analysis workflow

Duct Flow Boundary Conditions

1D meshing

Ensuring consistent 1D element orientation during mesh creation

Look up more details

Modeling ducts with 1D elements

Modeling ducts and their walls with 1D elements

Modeling ducts with 1D elements and their walls with 2D elements

Modeling ducts inside 3D solid elements

Understanding ducts and area definition

Solver calculation for duct elements

Solver calculation for duct with mass flow elements

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

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

Modeling the interface between ducts and 3D fluid elements, Simcenter 3D 2021.1 Series

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