Einfluss des Dralls auf den Überschallnachlauf eines längsangeströmten zylindrischen Körpers

• Main Author: Weidner, Stephan (auth)
• Format: eBook
• Published: Karlsruhe KIT Scientific Publishing 2021
• Subjects: Mechanical engineering & materials; Überschallnachlauf; Drall; Wirbelaufplatzen; Windkanalmessungen; Numerische Simulationen; supersonic wake flow; swirl; vortex breakdown; wind-tunnel measurements; numerical simulations
• Online Access: Get fulltext
• Physical Description: 1 electronic resource (218 p.)
• ISBN: KSP/1000118606
• Access: Open Access

This study investigates the effects of swirl on the supersonic wake of longitudinally-aligned axisymmetric afterbodies. The swirl was introduced upstream of the base corner by either spinning non-canted or non-spinning canted fins. Depending on the introduced swirl rate, both the experimental and numerical results show two distinctively different wake flow structures. The fluid-dynamic processes present in the rotating wakes and the resulting structural changes are analyzed in detail.