Simulation of Heat and Moisture Transfer in Grounds Using the Thermal and Hydraulic Resistance Method with Regard to Ventilation of the Structures' Crawl Spaces

摘要

This paper discusses a comprehensive software new in its essence. It is designed for numerical simulation of thermal-hydraulic processes in the foundation grounds with regard to "water-to-ice" and "water-to-vapor" phase transitions, ventilated layer aerodynamics, radiation produced by on-surface structures, heat sources of arbitrary shapes, and intensity in the grounds. Its modules can work autonomously or installed jointly. This software is based on the thermal and hydraulic resistance method that allows to ensure process convergence and stability. The computed model allows to take into consideration the presence of a structure of "active" structural elements in the foundation ground (pipelines, heating or cooling units of various designation, including heat stabilizers and heating cables), as well as "passive" ones that do not introduce additional heat flows into the foundation grounds (bases, piles, heat insulation layers, etc.). The abovementioned elements, as well as surfaces and limits of the calculated areas, may have arbitrary configurations and different heat-transfer conditions.