Study on Aerodynamics of a Fan Slot Jet in Crossflow(T-junction and Cross Flow)

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  • Wang Haijun
    State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University
  • Po Lin
    State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University
  • Terekhov V. I.
    Institute of Thermophysics SB RAS
  • Luo Yushan
    State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University
  • Chen Tingkuan
    State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University
  • Mshvidobadze Yu. M.
    Institute of Thermophysics SB RAS
  • Li Huixiong
    State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University
  • Bi Qincheng
    State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University

Abstract

The paper describes results of a numerical and experimental study of pressure and velocity fields arising during normal injection of a radial slot jet into ducted flow. The studies were carried out for injection parameters varying in a broad range. In this paper, the jet exit has two types of shape: sharp and round edge (α). The pressure profile along the duct length plotted in generalized coordinates was found to be quite a universal distribution. The distribution of the longitudinal velocity in the tube under different blowing parameters m is also given. Results of measurements of local hydraulic losses are presented for the duct section where the normal injection of the slot jet was organized. The numerical and experimental data are shown to be underestimated compared with the results predicted by the theory of perfect mixing for a ducted flow with mass supply. The possible reasons of hydraulic losses coefficient behavior are discussed.

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