Forced convection heat transfer in heat sinks with topologies based on triply periodic minimal surfaces

This study investigates the forced-convection heat-transfer in three mathematically designed heat-sinks with lattice-topologies based on triply-periodic-minimal-surfaces (TPMS). The TPMS lattices consist of periodically arranged Diamond- or Gyroid-cells of 10-mm size and 80% porosity. Two-types of TPMS-topologies are considered in designing the Gyroid heat-sink; Gyroid-Solid with solid-networks and Gyroid-Sheet with sheet-networks. This investigation aims to examine the thermohydraulic performance of these novel heat-sinks and provide comparisons with other heat-sinks in the literature. An airflow channel is utilized to study the hydrodynamic characteristics of the TPMS heat sinks, and a validated numerical model is used to explore the thermal performance. The results show that form drag dominates pressure drop in the range 2000