Investigation of Heat Transfer Augmentation with Triply Periodic Minimal Surfaces as Heat Transfer Surfaces

CFD simulations have been performed to study the flow over Triply Periodic Minimal Surfaces (TPMS) and presence of steady self-sustained periodic oscillations. The P-surface geometry is considered. Unsteady state laminar Simulations with PISO algorithm are initially performed over a 2D geometry and presence of the steady self-sustained periodic oscillations and heat transfer augmentation were established. Similar simulations on 3D P-surface geometry show that such oscillations are absent for this geometry, but a Nusselt number 3 times that of the flow between parallel plates can be obtained with the chaotic fluctuations that set up.