|July 4, 2010, 01:41||
Intake manifold analysis
Join Date: Jun 2010
Posts: 1Rep Power: 0
Sever error:a floating point has occurred:floating point exception.
Hi,everyone,I have encountered a problem while running an analysis for an intake manifold in star ccm.the error message I received was as follows:
And in the residuals window, all the residuals show solution divergence during the first iterations.
Below is my model information:
Geometry dimension:unit mm
Inletiameter:27àoutlet:ares:380,length:70 àsection of pipe: ares:820 ,length:105;
surfaces remesheràpolyhedral mesheràprism layer mesher
base size:5 àprism layer thickness:2.5àrelative minimum size(surface size) :1à relative target size(surface size) :2àothers:default
3DàstationaryàsteadyàIdeal gasàsegregated flowàstandard k-Epsilon tuberlenceàhigh y plus wall treatment, click on incompressible in the ideal gas property window.
Pressure:750pa(half of the pressure difference between inlet and outlet) àturbulence length scale:2 mmàturbulent intensity:0.04àothers:default
Inlet:stagnation . total pressure:1500pa.Outletressure out pressure:0pa.
other parameters keep as initial conditions.
|July 4, 2010, 14:32||
Join Date: Mar 2009
Location: Sao Paulo, Brazil
Posts: 80Rep Power: 8
Try to run some iterations using a velocity or mass flow rate at the inlet. It's better if you know one of these values. Then just go back to your pressure-pressure condition.
Last edited by Vinicius; July 6, 2010 at 07:01.
|Thread||Thread Starter||Forum||Replies||Last Post|
|intake manifold simulation||uday||Main CFD Forum||6||December 21, 2009 02:39|
|need help with manifold analysis in fluent||anil1886||FLUENT||0||August 29, 2009 10:29|
|Intake manifold analysis||mehndan||CD-adapco||3||August 22, 2008 04:24|
|Intake manifold analysis||mehndan||Main CFD Forum||6||July 3, 2008 05:28|
|Modeling of a airflow in a intake manifold||Jack||FLUENT||1||September 21, 2003 22:22|