Flowfield characteristics of a hypermixer interacting with transverse injection in supersonic flow

Chae Hyoung Kim, In Seuck Jeung, Byungil Choi, Toshinori Kouchi, Goro Masuya

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Nonreacting experiments were conducted at Mach 2 to understand the relationship between a wall-mounted alternating-ramp-wedge-type hypermixer and transverse injection compared with a step mixer. Experimental techniques such as schlieren visualization and stereoscopic particle image velocimetry were employed to study the three-dimensional flowfield with vortex structures induced by the interaction between the mixer and transverse injection. Without injection, the hypermixer creates a region that contains vortical motions. When a transverse jet is injected in the vortical region, flow parameters on mixing performance, such as the penetration height, vorticity, and turbulent stress, are improved. Three turbulent-stress components show relatively distinct distributions, and strong turbulent stresses are observed at the upper side of the jet plume. Turbulent-stress distributions are significantly associated with strain rate, which peaks along the sonic line of the jet plume.

Original languageEnglish
Pages (from-to)1742-1753
Number of pages12
JournalAIAA journal
Volume50
Issue number8
DOIs
Publication statusPublished - 2012 Aug 1

ASJC Scopus subject areas

  • Aerospace Engineering

Fingerprint Dive into the research topics of 'Flowfield characteristics of a hypermixer interacting with transverse injection in supersonic flow'. Together they form a unique fingerprint.

Cite this