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Description
This study presents a comprehensive numerical investigation of conjugate heat transfer (CHT) between a fluid and a solid domain, a phenomenon of critical importance for the design and optimization of engineering systems such as heat exchangers, electronic cooling devices, and industrial reactors. The simulations were carried out using ANSYS Fluent, enabling detailed analysis of heat transfer processes within both the fluid and solid regions, as well as across their shared interface.
The adopted methodology includes high-quality mesh generation, precise definition of material properties, and implementation of appropriate physical models governing fluid flow and heat transfer. Boundary conditions for fluid velocity and temperature were carefully specified to ensure realistic representation of operating conditions. The numerical model solves the coupled conservation equations of mass, momentum, and energy, with particular emphasis on the accurate treatment of the thermal coupling at the fluid-solid interface, where continuity of temperature and heat flux is automatically enforced.
The results provide detailed spatial distributions of temperature, velocity, and heat flux, allowing for a quantitative evaluation of heat transfer performance. Critical regions characterized by high thermal gradients and potential overheating are clearly identified, offering valuable insights for design improvements. Furthermore, the study highlights the strong interdependence between fluid dynamics and solid thermal response, demonstrating the necessity of coupled analysis in such systems.
Overall, the findings confirm that ANSYS Fluent is a reliable and efficient computational tool for solving complex CHT problems and supporting the optimization of thermally loaded engineering systems.