Akademik Veri Yönetim Sistemi
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, 2025 (SCI-Expanded)
The flow and heat transfer characteristics in double-glazed window under various vertically oscillating conditions are investigated. A comprehensive parametric numerical study has been conducted to investigate the flow and conjugate heat transfer of natural convection in three gaps of double-glazed windows which are L = 6 mm, 12 mm and 18 mm. Indoor and outdoor temperatures are kept constant, with convective boundary conditions are applied to both inner and outer glaze surfaces to ensure realistic conditions. To determine sinusoidal oscillation conditions in vertical direction, four different frequencies (f = 1 Hz, 2 Hz, 3 Hz, and 6 Hz) and six different amplitudes (A = 0.5 g, 1 g, 1.5 g, 2 g, 3 g, and 4 g) are applied. These vertical oscillations were considered to model the natural convection within double-glazed windows inside a moving bus and/or ship. The numerical results present streamline and isotherm contours, revealing flow and heat transfer within the glazed window gap. Velocity and temperature variations over time are displayed, along with the time-averaged Nusselt number for determined gaps, frequencies and amplitudes. The results show that, all cases of L = 6 mm produced conduction heat transfer (Nu = 1), and with an increase in the gaps, convection heat transfer become dominant. An amplitude of 3 and 4 g, and frequency of 1 and 2 supports the more convective heat transfer.