Dynamic control of multiple jets using low-dimensional model

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420119
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Mie University
• Principal Investigator: TSUJIMOTO KOICHI 三重大学, 工学(系)研究科(研究院), 教授 (10243180)
• Co-Investigator(Kenkyū-buntansha): ANDO TOSHITAKE 三重大学, 大学院工学研究科, 准教授 (30273345) ; SHAKOUCHI TOSHIHIKO 三重大学, 大学院工学研究科, 特任教授 (10024605) ; KITO MIZUKI 鈴鹿工業高等専門学校, 機械工学科, 講師 (00550401)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: Jet / DNS / low-dimensional model / Coherent strucure / Mixing / Vector control / POD / DMD

Outline of Final Research Achievements

In order to improve heat transfer and mixing performance of engineering applications, we investigate dynamic control of multiple jets using DNS(Direct Numerical Simulation). As the dynamic control,　various types of rotating control are examined for free and impinging jets. Based on a mixing-state evaluation technique using a statistical entropy and a low-dimensional technique using both POD (Proper Orthogonal Decomposition) method and DMD（Dynamic Mode Decomposition）method, the mixing performance is evaluated. As a result, it is found that the proposed methods lead to the improvement of the mixing performance. Further multiple impinging jets are controlled and their characteristics of mixing performance are turn out.

Free Research Field

流体工学