POLYDATA - Finite element interpolation for velocity in POLYFLOW? |
What finite element interpolation is recommended for the velocity field in POLYFLOW?<br>Usually, the following recommendations are made:<br>MST calculations:<br>- 2D without... |
FLUENT - How to debug User-Defined Functions (UDF)? |
How can I debug my User-Defined Function (UDF)?<br>This solution is for the LINUX SERIAL version of FLUENT only.<br><br>First, compile your UDF as usual. This will not compile... |
FLUENT - How to create animations of particle tracks? |
For a steady state flow simulation, how do I create an animation of particle tracks?<br><br>In FLUENT you can display the particle tracks in pulse mode. However, FLUENT doesn't... |
boolean type in udf |
udf's that use boolean as data type work fine in FLUENT 6.1.22 but give error in 6.2.<br>The fix is to replace the word "boolean" with "cxboolean" in your... |
FLUENT 6 - Scheme file for coal combustion case setup with eddy breakup model |
Setting up a coal combustion case with the EBU model requires volatile heat of formation. It is very time consuming to start from a coal proximate/ultimate analysis. The whole process can be... |
total NOx is less than Thermal NOx alone |
In some cases, why total NOx is lower than Thermal NOx only.<br>This is due to reduction reactions in prompt and fuel NO models. Therefore,<br>net NO formation = overall NO formation... |
FLUENT - Using a User Defined Function (UDF) to obtain unsteady statistics of dependent variables in a time-dependent calculation |
In a time dependent FLUENT calculation, you may want to obtain unsteady statistics (mean values and RMS values) of dependent variables. This solution provides a method to do this via a... |
FLUENT - More information regarding the Non-Iterative Time Advancement (NITA) solution method and related controls |
More information on the Non Iterative Time Advancement (NITA) algorithm and related solver controls.<br><br>The NITA algorithm and solver controls are documented in Sections 26.3.4 and... |
FLUENT 6.2 - Workaround for a GUI issue when using Scheme commands to save output files on the Windows platform |
On the Windows platform, if you use a Scheme command to save hardcopy files, particle files or other types of files, you may notice that the Select File dialog box is not closed automatically and... |
FLUENT 6 - monitoring phase flow rates using the mixture model |
There is no direct way to monitor phase flow rates at inlet/outlet boundaries when using the mixture model in FLUENT 6.2. Monitoring flow rates or mass flow rates at a surface will include... |
FLUENT - Converging multi-species simulation with one of the species entering in very small amount |
In cases where multiple species enter the domain through multiple inlets with one of the species having a flow rate orders of magnitude less than the rest, it is almost impossible to get good... |
How to access species index for a particular specie in the UDF based on specie name |
To write a generic udf that does not depend on the order in which species are specified in the mixture definition, it is needed to access the species index, i by passing the specie name as... |
Interior zones exported as walls in GAMBIT |
<br>Sometimes, geometries have some hanging faces (i.e. faces with some edges which are not part of atleast 2 other faces). GAMBIT, by default<br>treats such faces (and also hanging... |
POLYFLOW - Where can I find information about the CLIPS language (for UDFs) on the web? |
The POLYFLOW User's Guide mentions a web address for the CLIPS language. This address is unfortunately no longer in use. Where is the information available?<br>You can find this... |
ICEPAK_FAQ: Remote Icepak solution from command line. |
I am going oversees next week and was wondering if there is a way to run Icepak jobs remotely. I can create the model and mesh it and make sure that everything is OK on my laptop. But I like to... |
POLYFLOW - How to prevent symmetry planes from being lost (deformed) during a free surface flow calculation? |
While running a 3D transient free surface flow calculation with two planes of symmetry, symmetry planes may be progressively lost in the free jet, after several time steps (the calculation domain... |
FLUENT 6 - On the fly monitoring of maximum/mimimum values of any variable in the domain |
Many times while running cases, it is required to monitor the maximum/minimum values of some variables like temperature, pressure, turbulence quantities etc. in the domain. These values cannot be... |
FLUENT 6.2: How to determine which Linux platform to download |
For computers with Pentium processors, there are two FLUENT 6.2 download options for the Linux operating system:<br><br> Pentium+Linux (RHEL3/SLES9)<br><br> Pentium+Linux... |
License Manager: How to fix "GLIBC_2.0 not defined" error on Linux operating system |
When running on SuSE 9.1 and when starting the license manager, you may get the following error:<br><br>/usr/local/Fluent.Inc/license/lnx86/lmgrd: relocation... |
FLUENT: What causes "Connection Refused" message when running in parallel? |
When attempting to start FLUENT in parallel, a user may get a message similar to:<br><br>Host spawning Node 0 on machine "node1" (unix).<br>node1: Connection... |
FLUENT - Launching on UNIX/LINUX platforms may produce the Warning: No xauth data; using fake authentication data for X11 forwarding |
As you launch FLUENT on your UNIX or LINUX platform, you may see the following warning message:<br><br>Warning: No xauth data; using fake authentication data for X11... |
POLYFLOW ' How to simulate surface and volume defects? Any scientific literature on the topic? Can surface or volume defects such as haze, shark skin, etc. be simulated using POLYFLOW? |
The development of surface (or volume) defects may have multiple origins. There are several papers by academia, published in scientific journals. The list below can be completed. Without being... |
FLUENT 6.2 - Using a material properties database generated with a previous version produces the Error: GENERAL-CAR-CDR: invalid argument [1]: improper list |
-With FLUENT 6.2, you may see the following error if you are using a material properties database copied from a previous case that was generated with an earlier FLUENT version and if some of the... |
POLYFLOW - Why does a calculation hang on one platform while it runs fine on another one? |
It is possible that the automatic mesh decomposition does not produce identical results on two different machines and it may turn out such that the number of subparts differs on the two different... |
FLUENT 6 - how to convert the inertia tensor from principal axis to global axis |
The inertia tensor in FLUENT for the 6 Degree of Freedom (6DOF) model must be specified in the global coordinate system. This is not always convenient. Such quantities are sometimes calculated... |