Computational Fluid Dynamics Software

Save money and time performing fluid flow and heat transfer simulations with Caedium - an affordable priced, easy-to-use, all-in-one Computational Fluid Dynamics (CFD) software system.

Caedium Professional

Caedium Professional combines the entire Caedium add-on collection for a complete, affordable and easy-to-use Computational Fluid Dynamics (CFD) software system.

Caedium RANS Flow

Caedium RANS Flow simulates realistic (viscous) gas (e.g., air) and liquid (e.g., water) flow with heat transfer using state-of-the-art Computational Fluid Dynamics (CFD) software.

Caedium Panel Flow

Caedium Panel Flow simulates idealized gas (e.g. air) or liquid (e.g. water) flow around streamlined bodies and through simple ducts.

Caedium Builder

Caedium Builder allows you to quickly and easily create 2D or 3D models that represent your designs.

Caedium Transient

Caedium Transient enables you to take your design analysis a step further by exploring time-dependent simulations and results.

Caedium Transient add-on

Caedium Exchange

Caedium Exchange uses widely supported STEP, IGES and faceted file formats for you to share geometry with other people and other programs.

Caedium Viz Export

Add an extra dimension to your 3D results. Caedium Viz Export makes it easy to export your 3D results to high resolution, high quality renderers and other visualization systems.

Caedium

Caedium (formerly SymLab) and its add-ons combine to form an easy-to-use Computational Fluid Dynamics (CFD) software system to help you assess the performance of your 3D models.

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April 2014: 3D Visualization, Turbulence Modeling, and Automation

3D visualization explained, diagnosing turbulence model issues, and Computational Fluid Dynamics (CFD) task automation using Caedium's Python scripting - a technical reading list for you this month. Too much? Then lighten the load with some April Fools' Day posts on the aerodynamics of stationary bicycles.

Caedium CFD Simulation of a CycloneCaedium CFD Simulation of a CycloneArrows representing velocity vectors

Automated Creation and Export of CFD Results

Previously I showed how to automate a sequence of Caedium Computational Fluid Dynamics (CFD) simulations of an alpha sweep for an airliner. Next up I will show you how to automate the export of results from Caedium in a specific format. This example focuses on the files required for ixCube 4-10 (the successor to ixForten 4000) to perform a structural analysis using the pressure coefficient (Cp) from an airflow simulation over a tensile structure or membrane.

Caedium Membrane CFD SimulationCaedium Membrane CFD Simulation

Color Maps, Vectors, Streamlines, Action!

Computation Fluid Dynamics (CFD) is synonymous with impressive 3D visualization. Learn more about the basic 3D visualization techniques in CFD and how they can help you reduce the mass of raw data from a simulation into insightful and beautiful graphics.

3D Visualization in Caedium3D Visualization in CaediumCFD simulation of a cyclone

6 Things to Consider Before Switching Turbulence Model

Turbulence modeling for the Reynolds Averaged Navier-Stokes (RANS) equations - the basis of most industrial Computational Fluid Dynamics (CFD) software - is a complex field. Trying to strike a balance between accuracy and computational efficiency has given rise to a relatively large number of different turbulence models. I am not aware of a definitive list to match turbulence models to applications - if you are, please share! With this in mind I'll share 6 suggestions before you consider switching the default turbulence model in your CFD software.

RANS Simulation of Air Flow Around a ChimneyRANS CFD Simulation of Air Flow Around a ChimneyUsing the k-omega SST turbulence model

March 2014: Co-Processing Helps CFD

This month you can find out how Caedium uses co-processing to avoid Computational Fluid Dynamics (CFD) results data overload and assists in steering your simulation. Also, be sure to see our CFD flow volume creation tips and read an opinion on browser-based CAD/CAE applications.

CFD Co-Processing for a Transient Simulation in CaediumCFD Co-Processing for a Transient Simulation in CaediumMultiphase free surface (VOF) tank filling

CFD Simulation Steering

You've already heard some of the advantages of using co-processing over after-the-fact post-processing, but there's more. Co-processing is an enabler of Computational Fluid Dynamics (CFD) simulation 'steering', i.e., making changes to the simulation while it is active.

CFD Simulation Steering in CaediumCFD Simulation Steering in CaediumRelaxation factors changed at 200 iterations

Avoid CFD Transient Data Overload with Co-Processing

Computational Fluid Dynamics (CFD) has the potential to overwhelm any computer, including the largest super computers, with generated flow field data (e.g., pressure, velocity) for transient (time dependent or time accurate) simulations. The traditional approach to transient simulations, and still widely used today, is to run a transient simulation and store entire flow field data sets at each time step for post processing at a later date. Given that a transient simulation can run for 10,000s of time steps, data management clearly becomes a significant issue, or more often a headache. However, there is an elegant alternative - co-processing.

CFD Co-Processing for a Transient Simulation in CaediumCFD Co-Processing for a Transient Simulation in Caedium

5 Tips for CFD Flow Volume Creation

Configuring a flow volume for Computational Fluid Dynamics (CFD) is often the most difficult task during the simulation process. Follow these 5 tips to make your CFD flow volume creation less painful.

3D Model With Too Much Detail For CFD3D Model With Too Much Detail for CFD

February 2014: New Caedium Release

A new Caedium release is ready and waiting with a couple of new features and bug fixes. Are you confused by how your solid model relates to a Computational Fluid Dynamics (CFD) flow volume, or were you wondering how the fluid dynamics of a sphere affects ball sports, then this is the newsletter for you.

External CFD Flow VolumeExternal CFD Flow VolumeSubstance (air) modeled outside the car

CFD Flow Volumes and Solid Models

Solid modeling is the dominant form of virtual object representation underpinning nearly all 3D Computer-Aided Design (CAD) systems. The strength of a solid model is that it defines a water tight (manifold) unambiguous object which implicitly delineates between the inside and the outside of an object simply by the alignment of the boundaries (B-rep or BREP) that define it. This makes solid modeling an ideal basis for virtual analysis techniques, e.g., stress analysis and Computational Fluid Dynamics (CFD). Also solid modeling provides a relatively straightforward path to manufacture through CNC machines and, more recently, 3D printing.

Cylinder Head Solid ModelCylinder Head Solid ModelBoundary Representation (B-rep or BREP)

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