Three-Dimensional Jet Issuing from the Cruciform Nozzle : 4th Report, Statistical Characteristics

• FUJITA Shigetaka

  Dept. of Mech. and elec. Eng., Tokuyama Col. of Tech.

• OSAKA Hideo

  Dept. of Mech. Eng., Yamaguchi Univ.

• UENO Goro

  Dept. of Mech. and elec. Eng., Tokuyama Col. of Tech.

抄録

Statistical characteristics of a three-dimensional jet issuing from a cruciform nozzle have been examined experimentally to clarify the features of the present flow field due to the secondary flows. In the extent of x/d≧50 where the mean velocity profile U/U_<ox> shows the similarity, the ratio of the integral length scales L_u/L_v on the x axis assumes a constant value. In the relatively upstream portion, both the skewness factors S(u) and S(v) show a negative value, while both the flatness factors F(u) and F(v) take a positive value. The turbulent large eddy structure conjectured from the space-time correlation is significantly different at each location throughout the cross section.

収録刊行物

• JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties

  JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties 33 (4), 712-721, 1990-11-15

  一般社団法人日本機械学会

キーワード

• Turbulence
• Jet
• Cruciform Nozzle
• Probability Density Function
• Space-Time Correlation
• Power Spectrum

詳細情報

• CRID: 1570291227223695872
• NII論文ID: 110002492556
• NII書誌ID: AA10680596
• ISSN: 09148817
• 本文言語コード: en
• データソース種別:
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