Development and validation of a model for the temperature distribution in the extrusion calibration stage

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Habla, F (Author) Other; Fernandes, C (Author) Other; Maier, M (Author) Other; Densky, L (Author) Other; Ferras, LL (Author) Other; Rajkumar, A (Author) Other; Carneiro, OS (Author) Other; Hinrichsen, O (Author) Other; Nobrega, JM (Author) Other

Journal

Title: Applied Thermal Engineering

Vol. 100

Pages: 538-552

ISSN: 1359-4311

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 9 Citations

Other information

Authenticus ID: P-00K-941

DOI: 10.1016/j.applthermaleng.2016.01.166

Abstract (EN): A new model to calculate the temperature discontinuity between two phases is derived in detail and implemented in the OpenFOAM (R) computational library. The derivation of the model is based on the local instantaneous conservation equation for energy. With the conditional volume averaging technique a single equation that governs the temperature distribution, valid in both phases, is obtained. The order of convergence of the solver is determined using the Method of Manufactured Solutions (MMS), which also allows to identify eventual coding bugs. To verify the developed code, 2D problems, namely the heat transfer between two slabs in contact and between two concentric hollow cylinders, are considered. For the same purpose, the solution for a complex two-dimensional layout, which consists of a polymeric sheet and a calibrator, is compared with benchmark solutions. Finally, the developed code is used to study the behavior of a complex 3D calibration system. All results show good agreement with benchmark ones or, in case of the realistic calibrators, are in line with our expectations.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 15