Search Results

User Name Remember Me Password

Showing results 1 to 15 of 15 Search took 0.00 seconds. Search: Posts Made By: conceptone

Forum: OpenFOAM July 20, 2012, 12:57

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone Hi,actually, it's a little ... you should use the... Hi,actually, it's a little ... you should use the debug version to see what's wrong. If you can't build the debug version, you can post your error report and I'll check whether it's the same as mine....

Forum: OpenFOAM July 20, 2012, 12:51

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone Sorry about I forgetting to include that file.... Sorry about I forgetting to include that file. I'll attach again. I guess maybe I resolve the problem, which is not caused by the input parameters. Another problem, actually more general problem,...

Forum: OpenFOAM June 22, 2012, 13:21

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone I'd like to thank your warm help at first. I have... I'd like to thank your warm help at first. I have attached the files. The combustion vessel geometry is 108mm cube and spray location (0.054,0.054,0.103). The input data provided from the...

Forum: OpenFOAM June 21, 2012, 19:47

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone Ok, I checked the temperature before it cracks(at... Ok, I checked the temperature before it cracks(at time=0.00149s) and the temperature below is at 0.00144s, when the time sub-file output last time. There is no <=0 temperature in this file, they are...

Forum: OpenFOAM June 21, 2012, 18:08

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone OK, I got you. Yes, if T is too small then... OK, I got you. Yes, if T is too small then floating point error occurs. But isn't T the ambient temperature? Then it should be a constant. I mean which file is calculating the temperature? And is the...

Forum: OpenFOAM June 21, 2012, 17:50

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone If using the temperature ambient, the NSRDS... If using the temperature ambient, the NSRDS fuction1 value should be 27517468.395187, it seems quite large. Previously I used the fuel temperature so the value is much smaller. But I don't think it...

Forum: OpenFOAM June 21, 2012, 17:12

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone Then I really can't find where's wrong. The... Then I really can't find where's wrong. The ambient temperature is 900k and pressure is 6MPa,which is set as follows: FoamFile { version 2.0; format ascii; class ...

Forum: OpenFOAM June 21, 2012, 16:47

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone Thanks at first. I checked with the error... Thanks at first. I checked with the error message and found the bug should be caused by pv(p,T) function and NSRDS function1. The NSRDS function1, which returns the value exp(a_ + b_/T + c_*log(T)...

Forum: OpenFOAM June 21, 2012, 12:24

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone Hi man, I have checked with debug version. I... Hi man, I have checked with debug version. I believe it's caused by the NSRDSfunction. Can you tell me the meaning of a,b,c,d,e,f in the function? Thanks. Below is the error message by debug version....

Forum: OpenFOAM June 16, 2012, 17:26

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone Oh by the way is it true that if I want to run... Oh by the way is it true that if I want to run the debug version the openfoam should be installed on my own computer? I mean my openfoam is installed on the service computer, so I can't modify the...

Forum: OpenFOAM June 16, 2012, 16:46

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone Thanks your help man! I'm gona try debug version.... Thanks your help man! I'm gona try debug version. But what does "the spray must already be evolving?" mean at last? Sorry I didn't get you..

Forum: OpenFOAM June 15, 2012, 12:49

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone Yes, you're right, it's the floating point error.... Yes, you're right, it's the floating point error. I forgot to copy this message. But still thank man!

Forum: OpenFOAM June 13, 2012, 23:40

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone Hi adhiraj,thanks again for your help! I did do... Hi adhiraj,thanks again for your help! I did do that modification, but later I met a new problem.when the case runs a few steps, it cracks. It stopped at 0.00151s.The error is like below: Courant...

Forum: OpenFOAM June 12, 2012, 22:22

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone thanks dude!yep, you are right, I should check... thanks dude!yep, you are right, I should check the two files.but the question is how can I reach the two files? I mean, in the thermophysicalProperties it states that CHEMKINFile ...

Forum: OpenFOAM June 12, 2012, 15:15

Replies: 27 how to add a new gas Views: 4,578 Posted By conceptone how to add a new gas hi everyone, I am a new openfoam user. I wonder how to add a gas and how to define its properties in the openfoam. The gas is not defined in openfoam dictionary, so I got to define it by myself....

Showing results 1 to 15 of 15

Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home General Forums     Main CFD Forum     System Analysis     Structural Mechanics     Electromagnetics     CFD Freelancers     Hardware     Lounge Software User Forums     ANSYS         CFX         FLUENT             Fluent Multiphase             Fluent UDF and Scheme Programming         ANSYS Meshing & Geometry     Autodesk Simulation CFD     AVL FIRE     COMSOL     CONVERGE     Fidelity CFD     FloEFD, FloWorks & FloTHERM     FLOW-3D     OpenFOAM         OpenFOAM News & Announcements             OpenFOAM Announcements from ESI-OpenCFD             OpenFOAM Announcements from OpenFOAM Foundation             OpenFOAM Announcements from Other Sources         OpenFOAM Installation         OpenFOAM Meshing & Mesh Conversion         OpenFOAM Pre-Processing         OpenFOAM Running, Solving & CFD         OpenFOAM Post-Processing         OpenFOAM Programming & Development         OpenFOAM Verification & Validation         OpenFOAM Community Contributions             OpenFOAM CC Toolkits for Fluid-Structure Interaction         OpenFOAM Journal         OpenFOAM Bugs     Phoenics     REEF3D         REEF3D News & Announcements     Siemens         STAR-CCM+         STAR-CD     SU2         SU2 News & Announcements         SU2 Installation         SU2 Shape Design Mesh Generation & Pre-Processing Software     ANSA     enGrid     GridPro     Pointwise & Gridgen Visualization & Post-Processing Software     EnSight     FieldView     ParaView     Tecplot Special Topics     Mesh Generation & Pre-Processing     Visualization & Post-Processing CFD Online Community     Site News & Announcements     Site Help, Feedback & Discussions     CFD-Wiki