Abstract Protecting our environment and combating climate change starts with reducing energy use in buildings. Whether new or existing, energy-efficient buildings contribute to the sustainable management of precious natural resources. Low-energy buildings have lower costs, a stable thermal environment, cleaner air, and reduced noise, providing financial benefits to both owners and users. Efficient energy use in buildings requires advanced solutions, and numerical simulation programs represent a competitive option. By modelling temperature distribution and airflow velocity, these programs identify optimal strategies for reducing energy consumption. Thus, they contribute to the development of sustainable buildings with a reduced environmental impact. For simulating the performance of solar energy systems and energy-efficient building designs, engineers utilize ANSYS Fluent 17. This dynamic and modular simulation software allows for a comprehensive analysis of building performance and the integration of renewable energy solutions. An international team of developers ensures the continuous evolution of the program by incorporating the latest simulation theories and practical solutions. The program is widely used by experts worldwide in the development of energy concepts and performance evaluation. Although significant progress has led to a solid foundation of studies, further investigations into optimizing façades through various modelling applications remain essential for achieving efficient and sustainable solutions.
Iavorschi et al. (Fri,) studied this question.