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<p>This article aims to describe the effects of different probe shapes and various thermal physical properties of the tissue on the temperature distribution in tissues during hyperthermia. For this purpose, the dual-phase-lag (DPL) model is used to express the phenomena of heat transfer within the tissue in the existence of an external Gaussian distribution heating source term. This model is proselyte into an initial value problem of the system of ODEs by applying a finite-difference scheme and Runge–Kutta (4,5) method is considered to solve the system of ODEs for determining the temperature profile during the treatment. A comparison of the outcome has also been presented graphically with the exact solution to show the accuracy of the present method. The whole analysis is presented in non-dimensional form. The novelty of this research paper is that the formulated DPL model is used along with different geometries of probe shapes. These probe shapes are rectangular, cylindrical, and spherical . This study is beneficial in the field of medicine, especially for oncologists.</p>

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The influence of probe geometry on DPL bioheat transfer for targeted hyperthermia

  • 期刊论文

  • 发表日期：

    2026年3月10日

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  • Tejaswini Kumari,
  • S. K. S. Singh,
  • Dinesh Kumar,
  • K. N. Rai

摘要

This article aims to describe the effects of different probe shapes and various thermal physical properties of the tissue on the temperature distribution in tissues during hyperthermia. For this purpose, the dual-phase-lag (DPL) model is used to express the phenomena of heat transfer within the tissue in the existence of an external Gaussian distribution heating source term. This model is proselyte into an initial value problem of the system of ODEs by applying a finite-difference scheme and Runge–Kutta (4,5) method is considered to solve the system of ODEs for determining the temperature profile during the treatment. A comparison of the outcome has also been presented graphically with the exact solution to show the accuracy of the present method. The whole analysis is presented in non-dimensional form. The novelty of this research paper is that the formulated DPL model is used along with different geometries of probe shapes. These probe shapes are rectangular, cylindrical, and spherical . This study is beneficial in the field of medicine, especially for oncologists.