POLYFLOW - deformation of printed logo in thermoforming/blow moulding |
Is it possible to predict the final shape of the printed image after thermoforming (or blow moulding)?<br><br>To some extent, this is an exercise similar to particle tracking... |
Material Window error - Error: cx-show-toggle-button |
You receive this error:<br><br>Error: cx-show-toggle-button: wta[1](widget)<br>Error Object: #f<br><br>When opening up the Material window running Fluent 6.3.26... |
Radiation Properties, needed to be specified for solid materials in DO radiation model. |
While simulating a radiation problem with DO radiation model, Fluent asks for radiation properties of materials in terms of "Absorption co-efficient" , "Scattering... |
POLYDATA - how to run a session in menu mode? or from an existing console file? |
How to run a session in menu mode? or from an existing console file?<br>Does it differ on a Linux/Unix machine or on a PC?<br>For running in menu mode on Linux/Unix and PC, the command... |
POLYFLOW - Transfer of velocity distribution from 3D results into inlet condition for film casting application |
Film casting application may require the knowledge of velocity distribution at the exit of a coat hanger die. The flow simulation in a coat hanger die is usually 3D, and the output at the exit of... |
POLYFLOW - How to simulate the transient flow out of a capillary under an applied force? |
Flow experiments with capillary often involve the application of a constant force (load). How can this be simulated with POLYFLOW, while incorporating the downward motion of the... |
Renaming wall/wall-shdow pairs such that the shadow zone neighbors the solid zone |
When we read any mesh file in FLUENT, wall/wall-shadow pairs are created for all the wall zones having cells on both sides. The creation of the wall/wall-shadow pair is dependent on the face... |
FLUENT-6.3-->Improving the graphics issues |
During post-processing in FLUENT, we observe that the graphics resolution is not too good, leaving strange graphics around a corner of an object. Sometimes we have also seen problems in hidden... |
POLYFLOW - simulation of inverse extrusion (die design) with reaction (foaming, curing, etc.) |
Is it possible to perform an inverse extrusion simulation for a flow involving a chemical or physical reaction, such as curing, foaming, etc. ?<br><br>Yes. Most probably the challenge... |
How to create animations in FLUENT while running the session in batch mode? |
In FLUENT one can create animations various ways. A solution-229 explains the number of ways to do that. However, what is the way one can create animations when FLUENT is run in batch... |
Fluentlm.exe Unable to locate component. Cannot find file msvcr71.dll |
You install FSLM10.8 and attempt to run a FLUENT application and receive this error: Fluentlm.exe Unable to locate component. Cannot find file msvcr71.dll<br><br><br>See this FAQ... |
POLYFLOW - simulation of filling process for a thixotropic fluid? |
Is it possible to simulate the filling process (or any such one, involving contact) for a thixotropic fluid, i.e. for which the viscosity depends on a species obeying a transport... |
Labs for measurements of rheological properties? |
Where can one perform measurements of rheological properties?<br>There are several companies and academic departments where rheological measurements can be performed. To name a few... |
iterop_translator.exe - The application failed to initialize properly - WINDOWS |
You are trying to import an IGES or STEP file into Gambit 2.4.6 and you either receive this error:<br><br>iterop_translator.exe<br>The application failed to initialize... |
POLYFLOW - About the simulation of inverse coextrusion |
It is possible to perform a simulation of the inverse prediction for a coextrusion case?<br>This is a difficult question. In fact, unless one tries with a species for identifying the fluid... |
Calculation of shear stress components |
How is the 'wall shear stress' evaluated from the individual shear stress components (X-wall, Y-wall, Z-wall)?<br><br><br>Following is the expression for computing... |
FLUENT 6 - Cannot change [...] to interior because there is only one adjacent cell thread |
When reading a mesh file into FLUENT an error is reported:<br><br>Error: Cannot change [a boundary zone name] to interior because there is only one adjacent cell... |
Microsoft Visual C++ Runtime Library - Runtime Error! |
After installing Fluent 6.4.x beta Gambit 2.4.6 fails to import Problem to import an stl file and reports the following:<br><br>Error: Microsoft Visual C++ Runtime... |
FLUENT - Lennard Jones Values for various gas species |
Lennard Jones parameters of many gas species are not easily available. The table below provides many that are of interest.<br>Lennard Jones Values of various... |
FLUENT 6 - Patching temperature in a shell zone in batch mode |
There is no TUI command for patching temperaute in a shell conduction zone. If we are running the case in batch mode and want to patch temperature in a shell zone, we can use the following scheme... |
POLYFLOW - Time-temperature equivalence in rheology - Building the mastercurve |
How and where can one apply the time-temperature equivalence?<br>Time-temperature equivalence (or superposition) can e.g. be applied in the measurements of linear properties G' and... |
FLUENT - How to model viscosity (or other material property) as a function of the fluid residence time |
It is sometimes desireable to have a material property such as viscosity which varies as a known function of residence time of the fluid in the system.<br><br>A user-defined scalar... |
POLYFLOW - About the force driven motion (e.g. for mould in contact application, blow moulding, etc.) |
How can one define a 'moving rigid' wall boundary condition whose motion is driven by a force? (as may possibly appear e.g. in blow moulding/thermoforming or squeeze flow, where a... |
POLYFLOW - Books on rheology, viscoelasticity, modelling? |
In which book can one find an appropriate background on modelling of viscoelasticity and complex rheology?<br>There are several books available, and the choice is certainly difficult. In... |
POLYFLOW - a simulation with Picard iteration on the viscosity diverges... |
A flow simulation with a Bird-Carreau viscosity law is defined; the power index is low and a Picard iteration is therefore asked for the viscosity. The calculation diverges quickly, despite the... |