TY - EJOU AU - Ghasemi, M. H. AU - Hoseinzadeh, S. AU - Heyns, P. S. AU - Wilke, D. N. TI - Numerical Analysis of Non-Fourier Heat Transfer in a Solid Cylinder with Dual-Phase-Lag Phenomenon T2 - Computer Modeling in Engineering \& Sciences PY - 2020 VL - 122 IS - 1 SN - 1526-1506 AB - In this study, transient non-Fourier heat transfer in a solid cylinder is analytically solved based on dual-phase-lag for constant axial heat flux condition. Governing equations for the model are expressed in two-dimensional cylindrical coordinates; the equations are nondimensionalized and exact solution for the equations is presented by using the separation of variable method. Results showed that the dual-phase-lag model requires less time to meet the steady temperature compared with single-phase-lag model. On the contrary, thermal wave diffusion speed for the dual-phase-lag model is greater than the single-phase-lag model. Also the effect of relaxation time in dual-phase-lag model has been taken on consideration. KW - Exact solution KW - non-Fourier heat transfer KW - dual-phase-lag KW - cylindrical coordinate DO - 10.32604/cmes.2020.07827