Numerical Simulation of Isothermal Mixing of a Point-Source Indoor Pollutant

Speaker(s): 
Date: 
June 22, 2001 - 12:00pm
Location: 
Bldg. 90
Seminar Host/Point of Contact: 

Indoor air quality is of great importance for human well-being. In the industrialized world, people spend most of their time indoors. They are exposed to numerous air pollutants emitted indoors, brought in from outdoors with ventilation air, or brought in from soil by natural or forced ventilation.  Major pollutants of point-source indoor origin include environmental tobacco smoke, volatile organics from office machines, cosmetics and craft activities, and a variety of chemicals used in manufacturing and chemical synthesis. The correct understanding of the spread of the indoor pollutants released by a point-source is therefore of great importance, to understand occupant exposures and health effects. Unfortunately, only a limited number of experiments exists for verifying simulations. One set of experiments done in 1994 included the release of carbon monoxide (CO) into a 31 m3 large room, where up to 5 blowers were operating at different power settings. We report on comparing simulation predictions with this experimental data set. The simulations were performed using Computational Fluid Dynamics (CFD), an appropriate refined mesh and isothermal settings to attempt to replicate the experimental data.  This seminar describes the process of mesh generation, the simulation characteristics and results, followed by the comparison with the experimental results, using the definition of mixing time for characterization.

Add event to Google Calendar

Announcement List

To be added to our seminar annoucement list please, email the ETA Seminars Team. Seminars can change witout noticed, the best way to stay informed is to join our seminar email list. 

Site Access

For site access please email your request to etaseminars@lbl.gov. To arrive at Building 90 via the LBNL shuttle, take "Blue Uphill". Click here for the shuttle schedule. To ensure your site access is set-up send your request 36 hours in advance of the seminar.

Remote Access

Not able to attend in person? Remote participants can use ReadyTalk Audio & Net conference to phone in to listen, while viewing the presentation via the ReadyTalk site.

Web Access Code: 4864835

USA & Canada call-in number:
1 (866) 740-1260
Access Code: 4864835#

International callers:
Please visit this website to see if a toll-free call-in number is available for your international location.

If not, you will need to pay for the call yourself and use this phone number:

(303) 248-0285.