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... |
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.
The fix is to replace the word "boolean" with "cxboolean" in your udf. This is done to... |
How does POLYMAT evaluate the norm of the deviation between data and model for the spectrum? |
| Each experimental curve c is known as a list of (Xi,Yi_e), for i = 1,n. For each Xi, the model prediction Yi_p of the corresponding property is evaluated by POLYMAT. The distance d between... |
POLYDATA - error while loading shared libraries: libgtk-1.2.so.0: cannot open shared object file. No such file or directory |
| When running POLYDATA or POLYFLOW, it may happen that shared libraries be not bound.
Presently, the user should perhaps ask the assistance of a system manager, and provide the following... |
Eliminating the need for multiple DEFINE_SOURCE UDFs in Fluent |
| Often, a problem has multiple source terms (continuity, energy, species, etc.) When UDFs are used for each to compute sources, it is cumbersome because separate DEFINE_SOURCE macros are often used... |
error on STOUD relocation error GLIBC2.2 not defined in ld-linux-ia64.so.2 |
| While trying to start FLUENT on SGI ALTIX system, user gets the following error:
error on STOUD relocation error GLIBC2.2 not defined in d-linux-ia64.so.2 Workaround is described below depending... |
POLYFLOW - Error in CREPRO : only 200 PROB1 blocks are permitted in PROBLS block |
| A simulation involving several subdomains (and remeshings) is aborted, with the following error message: "only 200 PROB1 blocks are permitted in PROBLS block, a serious internal error occured... |
GetQueuedCompletionStatus failed error when writing a Particle Track file if running Fluent network parallel on a Windows cluster |
| GetQueuedCompletionStatus failed error when writing a Particle Track file if running Fluent network parallel on a Windows cluster. The error will be slightly different depending on what... |
POLYFLOW - error message at starting: "Unable to determine machine architecture". |
| when starting an executable of POLYFLOW 3.10.2 package on a machine equipped with an AMD Opteron or an Intel Xeon with Extended Memory 64 Technology, the following error message is issued:
Unable... |
POLYMAN - Application error: The instruction at ... referenced memory at ... The memory could not be "read" |
| When launching POLYFLOW from POLYMAN, the following error message is issued:
The instruction at "....." referenced memory at "0x00000000". The memory could not be read. POLYMAN subsequently... |
Fluent 6.2: How to solve a leakage case with long narrow channels and gaps 2nd order without babysitting
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| The attached figure http://www.eureka.im/downloads/solution_124.pdf shows a typical geometry encountered when one is interested in leakage flow in turbomachinary etc. One faces multiple... |
GLIBC_2.0 not defined in file libc.so.6
|
| When running on SuSE 9.1 and when starting the license manager, you may get the following error:
/usr/local/Fluent.Inc/license/lnx86/lmgrd: relocation... |
Cannot start FLEXlm on SUSE9.1 |
| Cannot start FLEXlm v8.3b on SuSE 9.1. From the license manager log:
/usr/local/Fluent.Inc/license/lnx86/lmgrd: relocation error: /usr/local/Fluent.Inc/license/lnx86/lmgrd: symbol errno, version... |
POLYFLOW - error when converting a result file on an AMD Linux 64 bits (relocation error, GLIBC) |
| When converting old results file in POLYDATA, the following error message can appear:
Starting ..../Fluent.Inc/polyflow3.10.2/lnx86/bin/polyflow -ES... |
Error: soeniputfile: Unable to open pipe for input |
| Trying to read or write gzip files produces this error
How are you launching Fluent? Through a shortcut on the Desktop? Have you placed a shortcut on the Microsoft Office Start Bar? If so, that... |
DPM tracking coupled with standard k-omega turbulence model in v6.1.22 parallel solver |
| You may have an error like
0 (....srcmpsystem.c@1210): mpt_read: failed: errno = 10054 for DPM particle tracking in Fluent 6.1.22 parallel solver, when the Shared Memory parallel option for... |
Fluent: How to take a 2d simulation result to initialize a 3d simulation |
| Imagine you have a 2d cas and dat file (for example 2d channel) and would like to use these 2d results to initialize the 3d simulation (3d channel). The 3rd direction is straight, ie. it is not... |
Fluent 6.2.7: UDF modifications for Hexcore and non-conformal adaption, Parent cells
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| A UDF that runs perfectly fine on tet, hex and hybrid meshes gives a segmentation error with hexcore. The UDF goes down to the cell face level c_face_loop
The original UDF looks like: #include... |
POLYFLOW - Error message "Error in list1d, Invalid qconnec initial seed" |
| A POLYFLOW calculation is aborted with the error message "Error in list1d, Invalid qconnec initial seed" generated beyond the information on the evolution strategy. The trouble may... |
Cortex received a fatal signal (ILLEGAL INSTRUCTION) |
| Comments: When starting FLUENT or TGRID on an AIX 5.2 system, the Cortex process fails to start and gives the message:
Error: Cortex received a fatal signal (ILLEGAL INSTRUCTION). Error Object:... |
POLYFLOW - zero pivot for the PRESSURE (triangles and tetrahedra along boundaries) |
| The calculation terminates with the error message "zero pivot for the pressure". It usually happens on a mesh involving triangles and tetrahedra along boundaries.
When using a mesh which contains... |
Fluent6: Documentation: UDF Manual: Section 3.2: Add the fact that multi-dimensional arrays don't work! |
| A UDF that contains and uses a multi-dimensional array ("real x[3][7]") can be read by the UDF interpreter without error message. However, executing it generates unpredictable bad results.
It is... |
POLYFLOW - ***WARNING*** from *frerem* Vanishing norm for direction vector |
| As a consequence of this error message, the calculation usually stops.
A flow case with free surface may require the calculation of direction of motion for nodal displacements on the free surface.... |
Fluent: Error when separating Fluid zone |
| When a fluid zone is separated using cells marked using a Boundary zone, Fluent reports following error:
Error: update_cell_references: not all faces on thread 10 share cell zone Error Object:... |
Hex core mesh in Gambit 2.1: assign boundary condition for the fluid zone |
| In Gambit 2.1, if one assigns boundary conditions for the fluid zone, which is meshed using hex core mesh, Gambit is unable to write the correct mesh file. You will get Null Domain Pointer error... |