Innovative heat transfer technology is the key to the
optimization of many processes in the power or process industry.
Operational costs and usage of valuable resources can be reduced,
if the heat transfer efficiency is increased and pressure loss is
reduced. Therefore, the current work is focused on heat transfer
enhancement at tubes with micro-structured walls with turbulent
flow. In this kind of geometry modern optical measurement
technology cannot be applied and the analysis of the turbulent
transport is only possible with numerical flow simulations. A
large-eddy turbulence model is applied to account for turbulence
closures. First, the simulation setup is validated with data from the
literature and then several micro-structured geometries are
investigated. The simulations are computationally costly and
depend on high performance computing (HPC). The open-source
software library OpenFOAMยฎ is applied to perform massively
parallel simulations
