CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > Siemens > STAR-CCM+

Biomass gasification model: floating point error

Register Blogs Community New Posts Updated Threads Search

Like Tree1Likes
  • 1 Post By Jamiebell94

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   December 3, 2016, 16:18
Exclamation Biomass gasification model: floating point error
  #1
New Member
 
Jamie Bell
Join Date: Dec 2016
Posts: 1
Rep Power: 0
Jamiebell94 is on a distinguished road
Hi everyone,

I'm relatively new to star-ccm+ and CFD in general so apologies if any of my issues seem trivial. As part of my final year project at uni I have to create a model on star-ccm+ to simulate the gasification process in a downdraft gasifier. I've created the model using lagrangian multiphase to model the reactions between the solid feedstock and gasification agent & volatiles.

Before using the point injector to inject the biomass, I've simulated pre-heated air flowing into the gasifier to heat up the gasifier in preparation for the gasification process. However, when I try to run it with the biomass injector activated I get the following error:

"A floating point exception has occurred: floating point exception [Invalid operation]. The specific cause cannot be identified."

Can anyone help me with this? Sorry if I am not being descriptive enough. I've used the eddy break-up combustion and mixing model, I've also defined all my reactions along with the reaction coefficients. I have 6 boundaries, 4 of which are air inlets defined as mass flow inlets, 1 of the boundaries represents the walls of the gasifier, and the last boundary represents the pressure outlet.

Any help would be greatly appreciated.
KAMIT310 likes this.
Jamiebell94 is offline   Reply With Quote

Reply

Tags
combustion modeling, floating point error, floating point exception, gasification cfd, lagrangian phase


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Building OpenFOAM1.7.0 from source ata OpenFOAM Installation 46 March 6, 2022 14:21
Compile calcMassFlowC aurore OpenFOAM Programming & Development 13 March 23, 2018 08:43
Mesquite - Adaptive mesh refinement / coarsening? philippose OpenFOAM Running, Solving & CFD 94 January 27, 2016 10:40
Compile problem ivanyao OpenFOAM Running, Solving & CFD 1 October 12, 2012 10:31
DecomposePar links against liblamso0 with OpenMPI jens_klostermann OpenFOAM Bugs 11 June 28, 2007 18:51


All times are GMT -4. The time now is 16:17.