Incorporating temperature-dependent properties into the modeling of photo-thermo-mechanical interactions in cancer tissues

Thermal Science and Engineering Progress, Journal Year: 2023, Volume and Issue: 47, P. 102351 - 102351

Published: Dec. 21, 2023

Language: Английский

---

Modelling of thin metal film heating using the dual-phase lag equation with temperature-dependent parameters

International Journal of Heat and Mass Transfer, Journal Year: 2023, Volume and Issue: 209, P. 124088 - 124088

Published: March 22, 2023

The paper presents a mathematical description and numerical algorithm simulating the thermal processes occurring in metal microdomain subjected to ultrashort laser pulse. model of these is based on an equation with two delay times (the dual-phase lag – DPLE) supplemented by appropriate boundary initial conditions. energy formulated version assuming variability thermophysical parameters temperature (volumetric specific heat conductivity are temperature-dependent). Taking into account geometric properties beam, problem treated as axisymmetric task, while impact taken introducing DPLE component related internal sources domain considered. At stage modeling implicit scheme finite difference method used. In program heating/cooling microdomain, possibility melting resolidification effects also final part work, numerous examples computations resulting conclusions presented. It turned out, among others, that especially at high temperatures, consideration (gold, nickel) causes results simulations differ visibly from classical solutions for constant values parameters.

Language: Английский

---

Investigation of thermo-mechanical coupled behavior within irradiated biological tissues with temperature-dependent properties

Mechanics of Advanced Materials and Structures, Journal Year: 2023, Volume and Issue: 31(15), P. 3174 - 3184

Published: Feb. 27, 2023

The thermo-mechanical coupled behavior of biological tissues excited by a transient heating has been studied in this paper, which the temperature-dependent physical properties are considered. A non-linear bio-thermo-mechanical model with variable parameters proposed firstly context generalized theory dual-phase relaxation mechanism. An effective procedure constructed on an explicit finite difference scheme is then implemented to solve numerically. On basis response and relative thermal damage within skin tissue irradiated pulse laser explored. temporal spatial distributions each field resulting from various cases have obtained illustrated. results stated that interaction induced would be inhibited inhibition more significant displacement normal stresses than temperature. also when temperature dependence considered time healthy can tolerated larger extension for its accumulative effect

Language: Английский

---

Sensitivity of Thin Metal Film Heating Process Described by the Dual-Phase Lag Equation with Temperature-Dependent Thermophysical Parameters on the Perturbation of Lag Times

Published: Jan. 1, 2024

In the paper, equation with two delay times (dual-phase lag (DPLE)) in a version that takes into account dependence of thermophysical parameters (volumetric specific heat and thermal conductivity) on temperature is considered.In particular, analysis sensitivity transient field relation to disturbances (the relaxation thermalization ones) performed. The model concerns process heating an ultrathin metal layer laser beam. effect action taken by introducing internal volumetric source energy equation, which approach often used.Chapter 2 work presents case temperature-dependent parameters. next chapter contains equations respect obtained direct method. Chapter 4 algorithm for solving basic tasks briefly presented. At stage computations authorial program based implicit scheme finite difference method supplemented iterative procedure system at each time step has been developed. final part paper examples numerical solutions layers made from gold nickel) are conducted research showed clearly visible depend, one hand, values material, other intensity external source.

Language: Английский

---

Sensitivity of a Process for Heating Thin Metal Film Described by the Dual-Phase Lag Equation with Temperature-Dependent Thermophysical Parameters to Perturbations of Lag Times

Energies, Journal Year: 2024, Volume and Issue: 17(10), P. 2252 - 2252

Published: May 8, 2024

In the paper, an equation with two delay times (dual-phase lag Equation (DPLE)) in a version that takes into account dependence of thermophysical parameters (volumetric specific heat and thermal conductivity) on temperature is considered. particular, analysis sensitivity transient field relation to disturbances (the relaxation thermalization times) performed. The model concerns process heating ultrathin metal layer laser beam. First, case temperature-dependent presented. Next, equations respect are derived using direct method. algorithms for solving basic tasks also briefly At stage computations, authorial program based implicit scheme finite-difference method developed. final part examples numerical solutions (for layers made from gold nickel) research conducted here shows clearly visible depend, one hand, material, other intensity external source.

Language: Английский

---

Effect of temperature-dependent physical parameters on the treatment of deep skin lesions by pulsed laser irradiation and cryogen spray cooling

International Journal of Thermal Sciences, Journal Year: 2024, Volume and Issue: 210, P. 109637 - 109637

Published: Dec. 24, 2024

Language: Английский

---