1 research outputs found
Analysis of the Near-Wall Flow in a Turbine Cascade by Splat Visualization
Turbines are essential components of jet planes and power plants. Therefore,
their efficiency and service life are of central engineering interest. In the
case of jet planes or thermal power plants, the heating of the turbines due to
the hot gas flow is critical. Besides effective cooling, it is a major goal of
engineers to minimize heat transfer between gas flow and turbine by design.
Since it is known that splat events have a substantial impact on the heat
transfer between flow and immersed surfaces, we adapt a splat detection and
visualization method to a turbine cascade simulation in this case study.
Because splat events are small phenomena, we use a direct numerical simulation
resolving the turbulence in the flow as the base of our analysis. The outcome
shows promising insights into splat formation and its relation to vortex
structures. This may lead to better turbine design in the future.Comment: Accepted at IEEE Scientific Visualization (SciVis) 2019. To appear in
IEEE Transactions on Visualization and Computer Graphic