Thermal/Flow, Electronic Systems Cooling, and Space Systems Thermal > Workflow for thermal and flow analyses > 1D duct flow networks

Duct analysis workflow

Step	Description
1. Create duct geometry	Create or import bodies or surfaces with center curves.
2. Mesh the ducts	Mesh the network curves using 1D elements and use the appropriate mesh collector.If necessary, mesh the duct walls with 2D elements.Define the fluid materials, duct cross sections, and all required physical and material properties.
3. Create the duct boundary conditions	Apply the Duct Flow Boundary Conditions and Thermal Coupling — Convection simulation objects that are required for your model.
4. Solve the model	The solver computes mass flows, velocities, densities, pressures, flow resistances, and fluid thermal effects in the fluid network.
5. Post process results	You can post process velocity, pressure, density, mass flow, Reynolds numbers, temperature, and heat flux results on 1D elements.

Note:

Quantities marked with stars (*) are not calculated for 1D duct with mass flow elements.

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

1D duct flow networks

Duct Flow Boundary Conditions

1D meshing

Ensuring consistent 1D element orientation during mesh creation

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 the interface between ducts and 3D fluid 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

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

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

Duct analysis workflow, Simcenter 3D 2021.1 Series

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