Direct Numerical Simulation of Jet Mixing Control Using Combined Jets

• TSUJIMOTO Koichi

  Graduate School of Engineering, Mie University

• SHAKOUCHI Toshihiko

  Graduate School of Engineering, Mie University

• SASAZAKI Shuji

  Graduate Student, Graduate School of Engineering, Mie University

• ANDO Toshitake

  Graduate School of Engineering, Mie University

Abstract

In order to develop an efficient jet mixing method, direct numerical simulations of combined jets are carried out. The Reynolds number defined with a nozzle diameter is Re=1500. Spatial discretization is performed by adopting a hybrid scheme of a sixth order compact scheme in the streamwise direction and Fourier series in the cross section. The distance between two jets is fixed at six times the jet diameter, and the inclination angle of the jets is changed from 45 to 70deg. The results reveal that the turbulence intensity increases with a decrease in the inclination angle and that the jet width increases viajet excitation. These findings suggest that the diverse requirements of jet mixing control can be satisfied by a flexible combination of jets.

Journal

• JSME International Journal Series B

  JSME International Journal Series B 49 (4), 966-973, 2006

  The Japan Society of Mechanical Engineers

Keywords

• DNS
• Coherent Structure
• Flow Control
• Combined Jets and Jet Mixing

Details

• CRID: 1390001204676359936
• NII Article ID: 110004850789
• NII Book ID: AA10888815
• DOI: 10.1299/jsmeb.49.966
• BIBCODE: 2006JSMEB..49..966T
• ISSN: 13475371
• ISSN: 13408054
• NDL BIB ID: 8535555
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8535555
• Web Site: http://www.jstage.jst.go.jp/article/jsmeb/49/4/49_4_966/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed