Heat transfer in a planer diverging channel with a slot jet inlet

This article delves into a numerical exploration of two-dimensional, incompressible, laminar flow within a confined diverging jet. The study aims to understand how variations in the inlet opening fraction and Reynolds number affect the heat transfer and flow patterns. The research employs the finite volume method with a collocated mesh to solve the governing equations. Across a broad spectrum of inlet opening fractions (0.2, 0.4, and 0.6) and Reynolds numbers (ranging from 500 to 900), the findings reveal that increasing the inlet opening fraction of the jet in the diverging channel can lead to a remarkable (53%) improvement in heat transfer while simultaneously reducing pressure loss by 90%. This outcome holds the potential to conserve energy by requiring less pumping power. Notably, this investigation is pioneering and offers novel and valuable insights into enhancing heat transfer through the utilization of a diverging channel.