TitleCharacterization of SparkJet for flight control
NameAnderson, Kellie (author), Knight, Doyle (chair), Bagchi, Prosenjit (internal member), Shan, Jerry (internal member), Elliott, Greg (outside member), Rutgers University, Graduate School - New Brunswick,
SubjectMechanical and Aerospace Engineering,
Flow control (Data transmission systems),
DescriptionThe 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.
NoteIncludes bibliographical references
Noteby Kellie Anderson
CollectionGraduate School - New Brunswick Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.