Applied Mathematics and Mechanics (English Edition) ›› 2004, Vol. 25 ›› Issue (12): 1323-1332.

• 论文 •    下一篇

PSEUDOSPECTRAL ANALYSIS OF THE INTERFACIAL STABILITY OF FREE JETS WITH DIFFERENT VELOCITY PROFILES

苏海容, 胡国辉, 周哲玮   

  1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, P. R. China
  • 收稿日期:2003-06-20 修回日期:2004-06-29 出版日期:2004-12-18 发布日期:2004-12-18
  • 通讯作者: ZHOU Zhe-wei(1950~ ), Professor, Doctor;Corresponding author, Tel:+86-21-66134661 E-mail:zhwzhou@yc.shu.edu.Cn
  • 基金资助:

    the National Natural Science Foundation of China (50371049);Shanghai Foundation of Ph. D Program:Shanghai Foundation of Key Project Program

PSEUDOSPECTRAL ANALYSIS OF THE INTERFACIAL STABILITY OF FREE JETS WITH DIFFERENT VELOCITY PROFILES

SU Hai-rong, HU Guo-hui, ZHOU Zhe-wei   

  1. Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai 200072, P. R. China
  • Received:2003-06-20 Revised:2004-06-29 Online:2004-12-18 Published:2004-12-18
  • Supported by:

    the National Natural Science Foundation of China (50371049);Shanghai Foundation of Ph. D Program:Shanghai Foundation of Key Project Program

摘要: A double fluid model for a liquid jet surrounded by a coaxial gas stream was constructed. The interfacial stability of the model was studied by Chebyshev pseudospectral method for different basic velocity profiles. The physical variables were mapped into computational space using a nonlinear coordinates transformation. The general eigenvalues of the dispersion relation obtained are solved by QZ method, and the basic characteristics and their dependence on the flow parameters are analyzed.

Abstract: A double fluid model for a liquid jet surrounded by a coaxial gas stream was constructed. The interfacial stability of the model was studied by Chebyshev pseudospectral method for different basic velocity profiles. The physical variables were mapped into computational space using a nonlinear coordinates transformation. The general eigenvalues of the dispersion relation obtained are solved by QZ method, and the basic characteristics and their dependence on the flow parameters are analyzed.

中图分类号: 

APS Journals | CSTAM Journals | AMS Journals | EMS Journals | ASME Journals