It often happens in CFD modeling that our boundary conditions change over time. Then there is a need to make the input variable dependent on time. For example, on Inlet, we want the gas temperature to increase over time in the transient analysis. For this type of simulation, a very useful option in Fluent is to define transient table data.
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| Example of transient table in Ansys Fluent |
Often, in CFD analysis modeling, we deal with more than one gas. Then in Ansys Fluent we follow the path of modeling using Multiphase. This is the right path when we need to define phase transitions. However, if we want to model a simple analysis with two gases that do not interact significantly with each other, then we can use the Species model (figure below).
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| Species Model in Ansys Fluent |
An important part of numerical modeling is defining the optimal recording of the output. In Ansys Fluent, the Calculation Acitivities option is used for this. We can define many expanded functions in this option. In this post I will try to present a few of them.
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| Calculation Activities in Ansys Fluent |
For every engineer (constructor or FEA analysis), an important element of work is the definition and selection of materials.For the FEA engineer for the correct and complete definition of the model, for the designer, the selection of appropriate materials that meet the criteria.
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| Free Material Database |
It is completely free software for creating 3d models. It has a parameterization function that greatly reduces the time needed to work on a model or a widely understood structure.
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| FreeCad - open source CAD software |
CAE programs based on the finite element method are an important tool for every designer and FEA engineer. Most of the implementation departments (RnD) of companies producing high-tech devices / machines have CAE-type engineering support software. However, it often happens that due to the price of commercial programs using the finite element method, companies simply cannot afford such tools to increase design efficiency. Therefore, the appropriate alternative are CAE programs of the OPEN SOURCE type, thanks to which companies with less financial potential are able to compete with hegemons in the markets.
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| Free software for Structural Analysis |
Another very complex program that uses the finite element method is Salome Meca (Code Aster).The Code Aster program has been developed by EDF since 1989.It is quite a little popular software (OPEN SOURCE type) but worth attention. In this post, I will explain the specifics of this type of solution a little more.
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| Open Source solver for CFD |
In today's post, I would like to present you an operating system specially dedicated to engineers and scientists.
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| Free operating system based on Linux for Engineer |
In many studies, appearance is the factor that attracts attention. During the face to face presentation, 90% of the speaker's perception is assessed by appearance and gestures (according to the latest research).
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| Free software for postprocessing |
Blender is a powerful open source tool for modeling, animating and simulating 3d objects.It is open source code, therefore it is constantly modified and improved. New plugins and add-ons appear very often.
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| Free powerful software for modelling, rendering and animation |
Some engineers unfamiliar with the most famous CFD programs such as Fluent, CFX or Open Foam may have problems solving technical issues related to heat transfer.
