Numerical analysis of temperature field and thermal stress associated with dual-phase-lag heat conduction

被引：6

作者：

Li, Jine ^{[1
]}

Wang, Baolin ^{[2
]}

机构：

[1] Jinling Inst Technol, Architectural Engn Inst, Nanjing 211169, Peoples R China

[2] Western Sydney Univ, Ctr Infrastruct Engn Sch Comp Engn & Math, Penrith, NSW, Australia

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2020年 / 27卷 / 15期

基金：

美国国家科学基金会;

关键词：

Dual-phase-lag heat conduction; thermal wave; thermal stress; numerical method; DIFFERENCE SCHEME; SHOCK FRACTURE; MODEL; EQUATION; BEHAVIOR; LEQUATION; ACCURATE; INERTIA; TISSUE;

D O I：

10.1080/15376494.2018.1508793

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A numerical method for generalized dual-phase-lag (DPL) heat conduction is proposed. Differential equations including the third-order derivative in time are obtained by using finite element space discretization and are solved by the finite difference method. The backward difference has less numerical oscillation but the central difference can better describe the sharp temperature change near the thermal wave front. In generality, the backward difference is an ideal method for the transient solution of the temperature field associated with the DPL model. However, the time step must be small enough so that the temperature field near the thermal wave front can be obtained accurately.

引用

页码：1304 / 1311

页数：8

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