Coupled heat conduction and multiphase change problem accounting for thermal contact resistance. (January 2017)

• Record Type: Journal Article
• Authors: Weisz-Patrault, Daniel
• Is Part Of: International journal of heat and mass transfer. Volume 104(2017:Jan.)
• Page Start: 595
• Page End: 606
• Publication Date: 2017-01
• Subjects: Multiphase changes -- Heat conduction -- Analytical solution -- Coiling process; Heat -- Transmission -- Periodicals; Mass transfer -- Periodicals; Chaleur -- Transmission -- Périodiques; Transfert de masse -- Périodiques; Electronic journals; 621.4022
• DOI: 10.1016/j.ijheatmasstransfer.2016.08.091
• Languages: English
• ISSNs: 0017-9310

Abstract

Highlights: Coupled thermal and multi-phase change problem. Analytical solution of a multi-layered composite. Contact resistance depending on contact pressure using equivalent air gaps. Applications to coiling process. Abstract: In this paper, heat conduction coupled with multiphase changes are considered in a cylindrical multilayer composite accounting for thermal contact resistance depending on contact pressures and roughness parameters. A numerical simulation is proposed using both analytical developments and numerical computations. The presented modeling strategy relies on an algorithm that alternates between heat conduction accounting for volumetric heat sources and a multiphase change model based on non-isothermal Avrami's equation using the isokinetic assumption. Applications to coiling process (winding of a steel strip on itself) are considered. Indeed, phase changes determine the microstructure of the final material and are responsible for residual stresses that create flatness defects. A Finite Element modeling is used for validating the presented solution and numerical results are presented and discussed.