CFD Review  
Serving the CFD Community with News, Articles, and Discussion
CFD Review

User Preferences
Site Sponsorship
Headline Feeds
Mobile Edition
Privacy Policy
Terms of Service

Submit a CFD Story

Site Sponsors
The Choice for CFD Meshing
CFD Review

Tell a Friend
Help this site to grow by sending a friend an invitation to visit this site.

CFD News by Email
Did you know that you can get today's CFD Review headlines mailed to your inbox? Just log in and select Email Headlines Each Night on your User Preferences page.

Random CFD Image

Image Caption
Figure 2a. Comparison of bottle pressure history for a particular inflator design.
Application: Accurate Simulation of Hydrogen Inflator Reduces Air Bag Design Time
Posted Mon January 05, 2004 @12:41PM
Print version Email story Tweet story
Application By Kwen Hsu and Alex Meduvsky
TRW Occupant Safety Systems
Washington, Michigan

By accurately simulating the complicated reactive flow process in a hydrogen air bag inflator, TRW engineers gained useful design information that has already helped reduce cost and resolve design issues. Physical tests that are traditionally used to design air bag inflators show the performance of a particular design but provide almost no diagnostic information, making it difficult to make improvements. The challenge was accurately capturing both the stiff hydrogen-air reaction and the complex flow geometry without consuming inordinate computational resources. TRW engineers took advantage of a commercial computational fluid dynamics (CFD) software package that provides reliable solution algorithms and allows for substantial chemical reaction complexity. By creating the first accurate simulation of a hydrogen inflator, they were able to gain additional understanding of how the parts in the inflator influence combustion. This, in turn, has made it possible to fine-tune the critical combustion process according to the performance requirements of individual applications.

( Read Full Article )

View: [All images]   [Another random image]

You will gain money by a speculation or lottery. All content except comments
©2019, Viable Computing.

[ home | submit story | search | polls | faq | preferences | privacy | terms of service | rss  ]