[9p-E308-1~15] 8.1 Plasma production and diagnostics

3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-E308-8] Time-Resolved Observation of Thermal Plasma-Jet-Induced TurbulenceUsing a Spatial-Frequency-Resolved Schlieren Sensor

〇(M2)Yuito Yamada¹, Yuki Inada², Hitoshi Muneoka¹, Makoto Sugimoto¹, Joe Yoshikawa³, Manabu Tanaka⁴, Masaya Shigeta¹ (1.Tohoku Univ., 2.Saitama Univ., 3.Industrial Technology Institute, Miyagi Pref. Gov., 4.Kyushu Univ.)

Keywords:

Thermal Plasma Jet,Schlieren Method,Turbulent Structure

The turbulence induced around a thermal plasma jet still has many unclear aspects regarding its generation mechanism and characteristics. In this study, we performed time-resolved observation of the turbulent structures induced by an Ar plasma jet using a Spatial-Frequency-Resolved (SFR) schlieren method. As a result, we quantitatively captured the downstream convection velocity of the turbulent structures with a specific spatial wavelength and their variation time. These results provide insights toward elucidating the characteristics of the induced turbulence.