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
twitter

Submit a CFD Story

Site Sponsors
The Choice for CFD Meshing
Azore CFD
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.

 
ESI Group Developing Aerodynamic Shape Optimization Software
Posted Thu October 13, 2005 @08:28AM
Print version Email story Tweet story
News ESI Group announces a breakthrough in Simulation Based Design (SBD) by implementing a new technology, called PAM-FLOW™/AS (Adjoint Solver), into its Computational Fluid Dynamics (CFD) solutions for aerodynamic shape optimization.

CFD related optimization is a very demanding task in terms of computational resources. The key advantage of the adjoint solution based method is that it requires fewer design iterations regardless of the number of design parameters, and therefore drastically cuts the number of Design of Experiment (DOE) simulations in the optimization process.


Sponsor CFD Review

ESI Group’s PAM-FLOW™/AS comprises an automated optimization method including automatic remeshing and morphing capability of either analytic or discrete surfaces for precise geometry representation.

A joint case study was made by Volkswagen and ESI Group on a HVAC (Heating Ventilation Air Conditioning) air duct using both the adjoint solver and a conventional optimization method. The adjoint solver demonstrated improvements in both HVAC performance and turn-a-round time. It took two design iterations to achieve 20% reduction of the head loss, with automatic shape update in six hours. A single alternative conventional optimization solution required 600 design iterations (600 CFD solver runs) in order to achieve the same level of head loss reduction.

“The adjoint solver shows great potential to cut the number of prototypes in the entire design process. It is a major breakthrough for car designers who use CFD solutions. At Volkswagen, in collaboration with ESI Group’s engineers, we are looking very deeply into this method to extend the applications from the air duct, to aerodynamics drag/lift or yaw moment, aero-acoustics and engine intake port design etc.”, says Dr. C. Othmer, CAE Method Division, Volkswagen, Wolfsburg, Germany, who has presented the EUROGEN 2005 paper for aerodynamic shape optimization with ESI Group’s PAM-FLOW™ adjoint solver.

“ESI Group considers this adjoint solver as one of its strategic technologies for Simulation Based Design, to supply end users a transparent process within their simulation environment.” adds Dr. Ming Zhu, CFD Product Manager, ESI Group. “Today we are working with Volkswagen and other industrial partners across the world through joint studies to adapt and enhance our technologies for all our CFD solutions.”

ESI Group plans to have the PAM-FLOW™/AS product released by spring 2006.

[ Post Comment ]

Explore the QNET-CFD Knowledge Base | Special Course - Gridgen Glyph Training  >

 

 
CFD Review Login
User name:

Password:

Create an Account

Related Links
  • ESI Group
  • EUROGEN 2005 paper
  • More on News
  • Also by nwyman
  • This discussion has been archived. No new comments can be posted.

    You will be the victim of a bizarre joke. All content except comments
    ©2022, Viable Computing.

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