3D-PRINTING HIGH PRECISION COMPONENTS OF BUILDING SCALE-MODELS FOR WIND TUNNEL TESTING

The article explores the transformative role of 3D-printing in architectural and engineering research, with a specific focus on its application in producing scaled models for wind tunnel testing of photovoltaic (PV) systems. The study highlights how 3D-printing enables the creation of prototypes which can be essential for the investigation and optimisation of structural designs. A case study explores the use of advanced 3D-printing technologies in the fabrication of extremely accurate and intricate items, such as instrumented PV modules incorporating hollow channels for pressure measurements, gear, racks, and sliding components. The integration of PolyJet and SLS technologies combined with tailored materials and meticulous post-processing treatments (such as sandblasting, spray polymer coating, alkaline solution dip, etc.) ensured high precision, functionality, and adaptability. This approach significantly reduced production time and costs while enhancing the reliability of experimental results. The findings underscore the potential of 3D-printing to revolutionise experimental methodologies, facilitating rapid design iterations and fostering innovation in sustainable and resilient building design.