Explicit temperature field reconstruction algorithm for concrete based on finite element method

Currently, the digital construction of temperature fields based on existing data (temperature field reconstruction) primarily relies on "interpolation methods" and "thermal parameter inversion methods." Although continuous advancements have been made in these approaches, the accuracy of digitally reconstructed temperature fields still requires further improvement. This paper proposes a novel methodology that establishes a finite element method-based temperature field computation framework, incorporating automated real-time corrections using measured temperature data during the calculation process, thereby achieving precise numerical reconstruction of temperature fields. Additionally, a water-cooling pipe calculation method is presented that simultaneously satisfies three critical requirements: simplified mesh discretization, accurate computation of water temperature along the flow path, and precise grid-based calculation of temperature fields surrounding cooling pipes. By employing this method, accurate temperature field reconstruction can be achieved using limited temperature measurement points without requiring thermal parameter inversion, while the inversion accuracy improves progressively with increased measurement data. This methodology lays the foundation for automated temperature field reconstruction technology based on measurement point data.