Micro Structured Hot Film Sensor Arrays for the Analysis of Coherent Structures in Turbulent and Transitional Flows

摘要

Novel arrays of micro-structured hot film sensors (μHFs) on thin polyimide foils enable the identification and tracking of coherent flow structures propagating in turbulent and transitional flows. The micro-manufactured μHFS arrays with their electronic system operate at very high temporal and good spatial resolution. They allow a detailed analysis of time dependent flow behavior e.g. in flow reattachment at low speed and in transition at high-speed external flows.