CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums

Search Results

Register Blogs Members List Search Today's Posts Mark Forums Read

Showing results 1 to 25 of 47
Search took 0.01 seconds.
Search: Posts Made By: donQi
Forum: OpenFOAM Running, Solving & CFD July 4, 2022, 05:16
Replies: 1
Views: 957
Posted By donQi
I had a similar issue when using in controlDict...

I had a similar issue when using in controlDict the following settings:

writePrecision 10;
timeFormat general;
timePrecision 8;

I was getting

Increased the timePrecision from 8...
Forum: OpenFOAM Running, Solving & CFD April 6, 2018, 02:56
Replies: 4
Views: 3,579
Posted By donQi
box2D_moveDynamicMesh tutorial

Hello,

in OpenFOAM1712 (https://www.openfoam.com/releases/openfoam-v1712/)
you can find the tutorial
OpenFOAM/OpenFOAM-v1712/tutorials/mesh/moveDynamicMesh/relativeMotion

inside take a look...
Forum: OpenFOAM Programming & Development November 15, 2016, 21:43
Replies: 2
Views: 7,514
Posted By donQi
- nutkRoughWallFunction ...

- nutkRoughWallFunction
http://www.openfoam.com/documentation/cpp-guide/html/a01810.html#details
This boundary condition provides a turbulent kinematic viscosity condition when using wall...
Forum: OpenFOAM Post-Processing August 31, 2016, 22:13
Replies: 1
Views: 4,013
Posted By donQi
I have found the solution to my error here ...

I have found the solution to my error here
http://www.openfoam.com/documentation/cpp-guide/html/a00802.html#details

I was forgetting the line
functionObjectLibs...
Forum: OpenFOAM Post-Processing August 31, 2016, 05:25
Replies: 1
Views: 4,013
Posted By donQi
Calculate Mass Flowrate at a faceZone with OpenFOAM4

Hello,

in OpenFOAM2.4 to compute that mass flowrate at an arbitrary faceZone inside the fluid domain I used the METHOD reported below. Unfortunately if I use it in OpenFOAM4 I get error:

[11]...
Forum: OpenFOAM Running, Solving & CFD August 31, 2016, 04:39
Replies: 4
Views: 2,388
Posted By donQi
Thank you very much Anton. for future...

Thank you very much Anton.

for future readers, I copy here an example from the tutorial:
incompressible/simpleFoam/mixerVessel2D/constant/MRFProperties

Origin, axis and omega of the MRF zone...
Forum: OpenFOAM Running, Solving & CFD August 31, 2016, 00:11
Replies: 4
Views: 2,388
Posted By donQi
MRFSource no more available in OpenFOAM 4?

Hello,

in the past, when launching simpleFoam simulations with MRF, I used to write in the fvOptions file :

MRF1
{
type MRFSource;
active true;
...
Forum: OpenFOAM Programming & Development May 2, 2016, 19:41
Replies: 5
Views: 1,128
Posted By donQi
I attach also the modified version of...

I attach also the modified version of HronTurekFsi used as test case for the solver.
for size reason the fluid.msh is not included, you can copy it from the original HronTurekFsi tutorial
Forum: OpenFOAM Programming & Development May 2, 2016, 19:33
Replies: 5
Views: 1,128
Posted By donQi
I attach here the current version of the solver....

I attach here the current version of the solver. It runs without errors with a slightly modified version of the HronTurekFsi tutorial, but handle with care, still needs validation.
Forum: OpenFOAM Running, Solving & CFD May 2, 2016, 19:19
Replies: 2
Views: 1,635
Posted By donQi
https://develop.openfoam.com/Development/OpenFOAM-...

https://develop.openfoam.com/Development/OpenFOAM-plus/issues/105

SprayFoam is hard coded to use "SprayClouds" and only fitted to use liquid. It has sub-models such as - atomization model and
...
Forum: OpenFOAM Running, Solving & CFD May 1, 2016, 22:30
Replies: 2
Views: 1,635
Posted By donQi
how to set solid particles injection in sprayFoam

Hello,

I was testing the lagrangian/sprayFoam/aachemBomb tutorial to check if it is possible to spray solid particles instead of fluid particle. But I am getting the following error:
...
Forum: OpenFOAM Pre-Processing April 13, 2016, 04:12
Replies: 28
Views: 14,926
Posted By donQi
I used the following workaround to solve the...

I used the following workaround to solve the issue:

1) switch solver: use buoyantSimpleFoam instead of buoyantBoussinesqSimpleFoam
2) copy from the tutorial...
Forum: OpenFOAM Pre-Processing April 12, 2016, 04:12
Replies: 28
Views: 14,926
Posted By donQi
Dear Bruno one question about...

Dear Bruno one question about turbulentHeatFluxTemperature BCs. Since you once helped in updating the documentation (http://www.openfoam.org/mantisbt/view.php?id=1875) maybe you have some idea.
In...
Forum: OpenFOAM Running, Solving & CFD February 22, 2016, 20:47
Replies: 1
Views: 1,779
Posted By donQi
additional note : the error disappears if you...

additional note :
the error disappears if you launch the tutorial in parallel using
http://www.openfoam.com/version-v3.0+/

/volume31/data/hp140187/k02596/OpenFOAM
Running rhoSimpleFoam in...
Forum: OpenFOAM Running, Solving & CFD February 16, 2016, 02:13
Replies: 1
Views: 1,779
Posted By donQi
Unhappy rhoSimpleFoam angledDuctExplicitFixedCoeff tutorial fails in parallel

Hello,

I tried to launch in parallel the tutorial
tutorials/compressible/rhoSimpleFoam/angledDuctExplicitFixedCoeff
using OpenFOAM-2.3.0 and OpenFOAM-2.4.0

and in both tests I get the...
Forum: OpenFOAM Programming & Development January 14, 2016, 04:44
Replies: 5
Views: 1,128
Posted By donQi
the error is due to a division by 0 that happens...

the error is due to a division by 0 that happens in createFields.H:

Info<< "Creating field DpDt\n" << endl;

// debugging
Info<< "value of p\n" << p << endl;

...
Forum: OpenFOAM Programming & Development January 10, 2016, 21:53
Replies: 5
Views: 1,128
Posted By donQi
one more observation : the error above appears...

one more observation : the error above appears using the HronTurekFsi/ left unchanged apart from adding the T file in 0. Turbulence is set off.
Forum: OpenFOAM Programming & Development January 3, 2016, 21:31
Replies: 5
Views: 1,128
Posted By donQi
adding compressibility to icoFsiElasticNonLinULSolidFoam

Hello,

we have a microwave rocket facility where the intake vanes are deformed after the passage of a shockwave, and we would like to simulate this in openFOAM.

Since we need both FSI and...
Forum: OpenFOAM Installation March 26, 2015, 04:32
Replies: 2
Views: 2,039
Posted By donQi
Hi Jack, here comes another way I used [but...

Hi Jack,

here comes another way I used [but before try Alexey's suggestion that is a more elegant solution]

Similarly to you, I had a redhat server 6.4 Santiago, and gcc 4.4.7 without the...
Forum: ParaView March 9, 2015, 21:54
Replies: 2
Views: 26,530
Posted By donQi
in paraview 4.1 also reachable by menu Filters...

in paraview 4.1 also reachable by
menu Filters -> Temporal -> Annotate Time Filter
Forum: OpenFOAM Running, Solving & CFD March 9, 2015, 21:20
Replies: 12
Views: 2,662
Posted By donQi
uniformValue table meaning in propeller tutorial

Dear all,

is my following interpretation correct?

inlet
{
type uniformFixedValue;
uniformValue table
(
(0 (0 0 0))
Forum: OpenFOAM Programming & Development October 3, 2014, 00:30
Replies: 30
Views: 12,049
Posted By donQi
Also try this : ...

Also try this :
http://www.dicat.unige.it/guerrero/dakotaof.html

there you find a presentation by Joel Guerrero and several tutorials:
- Parameter space exploration of the driven cavity...
Forum: OpenFOAM Meshing & Mesh Conversion October 3, 2014, 00:19
Replies: 5
Views: 2,655
Posted By donQi
Hello Kostis, once I tried with...

Hello Kostis,

once I tried with pimpleDymFoam: while the analysis was running I changed the rmp in dynamicMeshDict but the rotor continued to rotate with the same initial velocity. I tried both...
Forum: FLUENT October 1, 2014, 05:02
Replies: 3
Views: 3,275
Posted By donQi
See also : chapter 13.3.7 of Fluent 6.3...

See also :
chapter 13.3.7 of Fluent 6.3 Radiation Model Theory pag 995 (http://aerojet.engr.ucdavis.edu/fluenthelp/pdf/ug/pdf-pdf-download.htm)
The surface-to-surface radiation model can be used to...
Forum: OpenFOAM Running, Solving & CFD July 14, 2014, 21:30
Replies: 0
Views: 1,122
Posted By donQi
buoyantPimpleFoam with thermalBaffle1D: strange temperature decrease

I took the pimpleDyMFoam/propeller tutorial and added a 1D thermal baffle with Qs uniform 1000;
I launched the analysis with buoyantSimpleFoam: it converges after 1189 iterations and the maximum...
Showing results 1 to 25 of 47

 
Forum Jump

All times are GMT -4. The time now is 00:49.