Data for a moving heat source based on the DPL heat conduction model

The research hypothesis is that, under the dual-phase-lag (DPL) heat conduction model, the temperature field distribution in a material subjected to a moving heat source is strongly influenced by parameters such as source velocity, intensity, and phase-lag times. The data consists mainly of .mat files containing temperature fields (e.g., T.mat, T1.mat), spatial grids (e.g., x.mat, y.mat), and some analytical solution data, all generated by MATLAB simulations. Each .mat file contains variables such as T (temperature field as a 2D matrix), x and y (or r and θ for polar coordinates), and time steps, with physical parameters like diffusivity and phase-lag times set in the scripts. To use the data, load the .mat files in MATLAB, where each row/column of T corresponds to specific spatial coordinates given by x, y, r, or θ. Visualization can be done using MATLAB plotting functions, and researchers can modify the main scripts to generate new data for different parameter sets or to compare with analytical results. This dataset enables the study and validation of DPL heat conduction models under various moving heat source scenarios.

本研究提出的假设为：在双相位滞后（dual-phase-lag, DPL）热传导模型下，受移动热源作用的材料内部温度场分布，会显著受热源速度、热流强度以及相位滞后时间等参数的影响。本数据集主要包含由MATLAB仿真生成的.mat格式文件，涵盖温度场数据（如T.mat、T1.mat）、空间网格数据（如x.mat、y.mat）以及部分解析解数据。各.mat文件均包含如下变量：T（以二维矩阵形式存储的温度场数据）、x与y（极坐标场景下则为r与θ），以及时间步长相关参数；仿真脚本中已预设扩散系数、相位滞后时间等物理参数。若需使用该数据集，可在MATLAB环境中加载.mat格式文件，其中温度场矩阵T的每一行与每一列分别对应x、y（或极坐标下的r、θ）所指定的特定空间坐标。可通过MATLAB绘图函数完成数据可视化，研究者亦可修改主脚本以生成不同参数组合下的新数据，或与解析解结果开展对比验证。本数据集可用于开展各类移动热源场景下的DPL热传导模型研究与验证工作。