Behavior of Plane Synthetic Jets Generated by an Asymmetric Stepped Slot

• Kobayashi Ryota

  Mechanical Engineering Program in the Graduate School of Engineering, Kogakuin University

• Terakado Hiroaki

  Mechanical Engineering Program in the Graduate School of Engineering, Kogakuin University

• Sato Kotaro

  Department of Mechanical System Engineering, Kogakuin University

• Taniguchi Junya

  Graduate School of Integrative Science and Engineering, Tokyo City University

• Nishibe Koichi

  Department of Mechanical Engineering, Tokyo City University

• Yokota Kazuhiko

  Department of Mechanical Engineering, Aoyama Gakuin University

Abstract

This paper presents a fundamental study of jet directional control, i.e., thrust vectoring, using a synthetic jet generated by an asymmetric stepped slot. We present and discuss the results for a synthetic jet generated by a one-sided asymmetric stepped slot and focus on the relationship between the traveling direction of the formed jet and the offset ratio of the stepped slot and/or dimensionless frequency of the synthetic jet, within a jet deflection angle range of 0–90°. We demonstrate that there is an optimum offset ratio for jet deflection under the same dimensionless frequency because the traveling direction of the synthetic jet is dependent on the offset ratio of the stepped slot and the dimensionless stroke length (dimensionless frequency).

Journal

• International Journal of Fluid Machinery and Systems

  International Journal of Fluid Machinery and Systems 13 (1), 253-265, 2020

  Turbomachinery Society of Japan, Korean Society for Fluid Machinery, Chinese Society of Engineering Thermophysics, IAHR

Keywords

• synthetic jet
• asymmetric stepped slot
• jet vectoring
• vortex pair
• frequency

Details

• CRID: 1390283659865731712
• NII Article ID: 130007821720
• DOI: 10.5293/ijfms.2020.13.1.253
• ISSN: 18829554
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed