Thursday, September 9, 2021

How to define... transient table data for BC's in Ansys CFX

In the previous post, I showed how to define and load an input table into any boundary condition in Fluent. Today I would like to show you the simplified transient table data definition path for Ansys CFX. As far as the procedure comparison itself is concerned, it seems that the definition of tables in CFX compared to Fluent is easier and more intuitive.

how to define transient table data in ansys cfx
Transient table data in Ansys CFX


Sunday, September 5, 2021

How to... define transient table to BC's in Ansys Fluent

 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.

how to create input table in fluent ansys
Example of transient table in Ansys Fluent 

Saturday, September 4, 2021

How to... model two gases flow on 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).

how to model two gases flow ansys fluent
Species Model in Ansys Fluent 

Monday, August 23, 2021

How to... define calculation activities in Ansys Fluent (data save option)

 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.

how to define calculation activities in ansys fluent
Calculation Activities in Ansys Fluent 

Monday, August 9, 2021

Free Material Property Database - MatMatch

 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.

free material database
Free Material Database

FreeCad free software for creating parametric 3d models CAD

 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.

open source free cad software
FreeCad  - open source CAD software 

Free CAE software CALCULIX

  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.

free CAE software FEA
Free software for Structural Analysis 

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