|
[Sponsors] |
February 23, 2010, 11:14 |
CO concentration in car park
|
#1 |
New Member
Adil Eshack
Join Date: Feb 2010
Posts: 4
Rep Power: 16 |
Hei,
I am new to CFD. I am simulating the CO levels in an underground car park. I have obtained convergence for velocity and pressure. I made a face on the floor of the car park called 'driving lane' to act as the source of CO. I use the driving lane face as a mass flow inlet BC I am using a k-epsilon realizable model. In materials panel i am using only 2 species air and CO However on simulation i am getting very high levels of CO in the car park volume. i tried two conditions for the mass flow inlet 1. mass flow rate of 1.8e-5 kg/sec and mass fraction of CO as 1 2. 2.69kg/sec of air and mass fraction of CO as 1.4e-04 I have the field data for a particular car park. I am not sure where i am going wrong. I am in urgent help as this work has to be completed by Feb end. |
|
February 23, 2010, 11:16 |
|
#2 |
New Member
Adil Eshack
Join Date: Feb 2010
Posts: 4
Rep Power: 16 |
Field values are in the range of 6 to 10 ppm
Simulation values are all in excess of 100000 ppm |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Car park ventilation and impulse fans | guillaume | FLUENT | 3 | June 27, 2011 11:17 |
Car park ventilation and impulse fans | guillaume | Main CFD Forum | 12 | June 27, 2011 11:16 |
Car park ventilation and impulse fans | guillaume | Siemens | 0 | May 11, 2008 20:00 |
Car park ventilation and impulse fans | guillaume | CFX | 0 | May 11, 2008 19:59 |