NDLI: Implementation of surface tension force in fluid flow during reactive rotational molding

Content Provider	Springer Nature Link
Author	Hamidi, A. Khelladi, S. illoul, A. Shirinbayan, M. Bakir, F. Tcharkhtchi, A.
Copyright Year	2015
Abstract	During Reactive Rotational Molding (RRM), it is very important to predict the fluid flow in order to obtain the piece with homogeneous shape and high quality. This prediction may be possible by simulation the fluid flow during rotational molding. In this study we have used a mixture of isocyanate and polyol as reactive system. The kinetic rheological behaviors of thermoset polyurethane are investigated in anisothermal conditions. Thanks to these, rheokinetik model of polyurethane was identified. Then, to simulate the RRM, we have applied Smoothed Particles Hydrodynamics (SPH) method which is suited method to simulate the fluid flow with free surface such as occurs at RRM. Modelling and simulating reactive system flow depend on different parameters; one of them is the surface tension of reactive fluid. To implement force tension surface, the interface between polymer and air is dynamically tracked by finding the particles on this border. First, the boundary particles are detected by free-surface detection algorithm developed by Barecasco, Terissa and NAA [1, 2] in two and three dimension. Then, analytical and geometrical algorithms have been used for interface reconstructions. The aim of this work is the implementation of surface tension force in the SPH solver applied to RRM. To illustrate that, we used novel and simple geometric algorithm fitting circle and fitting sphere, in two and three dimensional configurations, respectively. The model has been validated using a well-known dam break test case which covered the experimental data.
Starting Page	131
Ending Page	148
Page Count	18
File Format	PDF
ISSN	19606206
Journal	International Journal of Material Forming
Volume Number	9
Issue Number	2
e-ISSN	19606214
Language	English
Publisher	Springer Paris
Publisher Date	2015-03-18
Publisher Place	Paris
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Reactive rotational molding Simulation Smoothed particle hydrodynamics Surface tension Polyurethane Interpolation Operating Procedures, Materials Treatment Materials Science Manufacturing, Machines, Tools Mechanical Engineering Computational Intelligence Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Materials Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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