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
Siemens PLM Software
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.

Fast Hex Meshing Compared with Tetrahedral Meshing
Posted Sun February 12, 2006 @06:33PM
Print version Email story Tweet story
Application The purpose of a recent study performed by DaimlerChrysler was to compare the performance of Harpoon-based CFD against previous solutions of internal flow through an automotive water pump using tetrahedral meshes.

The effect of mesh skew on accuracy and convergence was observed. Fourteen operating speeds were simulated from 1000-7500rpm at 500rpm increments.

Sponsor CFD Review

Inlet velocities were derived based on the test mass flow measurements. Pressure rise & flow split between volutes were solved.

Excellent agreement was obtained using a Harpoon mesh containing approximately 3M cells at a fraction of the simulation effort required for a full tet mesh.

The following was concluded:

  • The hexa-dominant mesh improves the convergence quality & rate of the model, even with reduced mesh resolution

  • Mass conservation residuals dropped by up 90%

  • Kinetic Energy residuals dropped by up to 20%

  • Convergence time was reduced by more than 30% for the initial condition case, up to 80% for the consecutive cases

[ Post Comment ]

New Generation CFD Software Released | Engineering Bugaboo: Software Interoperability  >


CFD Review Login
User name:


Create an Account

Related Links
  • Harpoon
  • Hexa
  • study
  • More on Application
  • Also by nwyman
  • This discussion has been archived. No new comments can be posted.

    You work very hard. Don't try to think as well. All content except comments
    ©2018, Viable Computing.

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