Microchannel heat sinks are highly effective methods for thermal management in various applications, such as electronic cooling, power generation, and microfluidics. There are no studies in the existing literature regarding the influence of integrating elastic walls and vortex generators on the thermal efficiency of microchannels. This study accomplished a set of reliable numerical simulations to evaluate the influences of elastic walls and different vortex generators on flow dynamics and heat transfer, to enhance microchannel performance. Consequently, the Arbitrary Lagrangian–Eulerian method was applied for all simulations. Therefore, five microchannel configurations were tested: a standard microchannel, one featuring a circular vortex generator, another with an elastic wall, and a design that integrates elastic walls with both circular and crescent vortex generators. The dynamics and heat transfer within these systems were carefully examined and assessed. The numerical findings indicated that the updated design featuring two crescent-shaped vortex generators and a flexible wall improves the heat transfer rate by approximately 20.15 %, resulting in a thermal performance ratio (TPR) of 1.203. This study introduces a novel design approach that significantly improves thermal efficiency and provides valuable insights for upcoming uses in microchannels.
