Volume 1, Issue 4 (Jul 2004)                   IJMSE 2004, 1(4): 9-15 | Back to browse issues page

XML Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
ATTAR E., BABAEI R., HOMAYONIFAR P., ASGARY K., DAVAMI P.. AIR PRESSURE SIMULATION IN CASTING MOLDS. IJMSE 2004; 1 (4) :9-15
URL: http://ijmse.iust.ac.ir/article-1-4-en.html
AIR PRESSURE SIMULATION IN CASTING MOLDS
ATTAR E. , BABAEI R. , HOMAYONIFAR P. , ASGARY K. , DAVAMI P.
Abstract:   (33465 Views)
During mold filling, molten metal can only advance as quickly as the air inside thecavity is expelled. In this work an analytical model describing air flow is developed based on aincompressible flow theory. Air pressure has serious effects upon the filling behaviour such assurface profile and filling time. In this work a new mathematical model is proposed for calculationthe air pressure during the mold filling. A single phase computational fluid dynamic code based onthe SOLA-VOF algorithm used for prediction the fluid flow. Air discharged through the vents ismodelled by ideal gas assumption, conservation of mass equation and Bernoulli law. A newalgorithm was developed to interpolates the air pressure on the surface cell. The creation of airback pressure was correlated with sizes of vents and pouring basin height. In order to verify thecomputational results a series of experimental test was conducted. Comparison between theexperimental data and simulation results has shown a good agreement.
Keywords: Air pressure, Simulation, Casting, Mold filling, Free surface.
     
Type of Study: Research Paper | Subject: Ceramics
Add your comments about this article : Your username or Email:
CAPTCHA
Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2022 All Rights Reserved | Iranian Journal of Materials Science and Engineering

Designed & Developed by : Yektaweb