Computer Modeling of Non-Standard Fire Testing Using the Combination of Ansys Fluent and Ansys Mechanical Software

Computer modeling has a strong potential to replace or supplement physical fire testing of building structures. A prepared and applicable model must be simple to prepare, capable of calculating and processing results in the shortest possible time without the need for complex computing technology, thus saving time, resources, and finances and becoming a profitable alternative. The aim of this article is to design a model that would suitably represent a non-standard fire test using the Ansys software package 2025/R2. The model was created by combining the Ansys Discovery, Ansys Mechanical and Ansys Fluent software, connected using Ansys Workbench. Several calculation settings were tested, including the proposed finite mesh. The results showed the suitability of the proposed procedure and the division of calculations in separate software. The Species Transport and Viscous Shear Stress Transport (SST) k-omega model best represented fluid flow in Ansys Fluent. Ansys Mechanical confirmed the accuracy of the model in Ansys Fluent, when the predicted temperatures matched the real medium-scale fire test with an average coefficient of determination R2 = 0.93.