The need for flow control devices with rapid actuation has surged with recent interest in hypersonic flight. Plasma actuation offers actuation times orders of magnitude smaller than conventional mechanical and electro-mechanical actuators. A novel concept using a plasma to generate a high speed jet is evaluated. The jet (known as a “SparkJet”) is generated by depositing energy in a cavity by a pulsed electrical discharge. The high pressure gas exits through an orifice in the cavity, creating a jet. This research is a study of the effectiveness of using this jet for flow control. This research focuses on characterizing the forces generated by the SparkJet. The jet is first characterized exiting to a quiescent environment. An analytical solution is obtained which relates the dimensionless impulse to the dimensionless energy deposition. The analytical result is verified with a computational solution. The two agree very well and both results indicate that the dimensionless impulse is insensitive to the dimensionless geometry parameters. A Monte-Carlo analysis verifies the insensitivity of the dimensionless impulse to dimensionless geometry parameters. The SparkJet issuing into a quiescent environment is compared to experimental results. The jet exiting into a turbulent Mach 3 cross flow boundary layer is then evaluated computationally. The dimensionless impulse is much higher than the quiescent flow case and dimensionless discharge times are also greater.
Subject (authority = RUETD)
Topic
Mechanical and Aerospace Engineering
Subject (authority = ETD-LCSH)
Topic
Flow control (Data transmission systems)
Subject (authority = ETD-LCSH)
Topic
Fluid dynamics
Subject (authority = ETD-LCSH)
Topic
Jet planes--Performance
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Rutgers University. Graduate School - New Brunswick
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.