Development of an Actuator for Flow Control Utilizing Detonation

Lonneman, Patrick J; Cutler, Andrew D

ISBN 10: 1289263620 / ISBN 13: 9781289263621

Published by Bibliogov, 2013

About this Item

Seller Inventory # I-9781289263621

Bibliographic Details

• Title: Development of an Actuator for Flow Control Utilizing Detonation
• Publisher: Bibliogov
• Publication Date: 2013
• Language: English
• ISBN 10: 1289263620
• ISBN 13: 9781289263621
• Binding: Soft cover
• Condition: New

About this title

Synopsis

Active flow control devices including mass injection systems and zero-net-mass flux actuators (synthetic jets) have been employed to delay flow separation. These devices are capable of interacting with low-speed, subsonic flows, but situations exist where a stronger crossflow interaction is needed. Small actuators that utilize detonation of premixed fuel and oxidizer should be capable of producing supersonic exit jet velocities. An actuator producing exit velocities of this magnitude should provide a more significant interaction with transonic and supersonic crossflows. This concept would be applicable to airfoils on high-speed aircraft as well as inlet and diffuser flow control. The present work consists of the development of a detonation actuator capable of producing a detonation in a single shot (one cycle). Multiple actuator configurations, initial fill pressures, oxidizers, equivalence ratios, ignition energies, and the addition of a turbulence generating device were considered experimentally and computationally. It was found that increased initial fill pressures and the addition of a turbulence generator aided in the detonation process. The actuators successfully produced Chapman-Jouguet detonations and wave speeds on the order of 3000 m/s.