On the position of the central compression shock in an underexpanded sonic jet issuing from a slot nozzle

G. I. Gannochenko; L. S. Ermolayev; N. A. Zadorozhnyi

doi:10.1007/bf00910200

On the position of the central compression shock in an underexpanded sonic jet issuing from a slot nozzle

Journal of Applied Mechanics and Technical Physics ◽

10.1007/bf00910200 ◽

1987 ◽

Vol 27 (4) ◽

pp. 559-561 ◽

Cited By ~ 1

Author(s):

G. I. Gannochenko ◽

L. S. Ermolayev ◽

N. A. Zadorozhnyi

Keyword(s):

Compression Shock ◽

Slot Nozzle ◽

Sonic Jet

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IMPINGEMENT OF AN UNDEREXPANDED SONIC JET ON A CYLINDRICAL BODY

Journal of Flow Visualization and Image Processing ◽

10.1615/jflowvisimageproc.v6.i2.30 ◽

1999 ◽

Vol 6 (2) ◽

pp. 105-114

Author(s):

Hideo Kashimura ◽

Tsuyoshi Yasunobu ◽

Manabu Takao ◽

Toshiaki Setoguchi

Keyword(s):

Cylindrical Body ◽

Sonic Jet

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Thermal effects of a sonic jet fire impingement on a pipe

Journal of Loss Prevention in the Process Industries ◽

10.1016/j.jlp.2021.104449 ◽

2021 ◽

Vol 71 ◽

pp. 104449

Author(s):

Vahid Foroughi ◽

Adriana Palacios ◽

Carlos Barraza ◽

Alba Àgueda ◽

Christian Mata ◽

...

Keyword(s):

Thermal Effects ◽

Sonic Jet

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Heat transfer of multi-slot nozzle air jet impingement with different Reynolds number

Applied Thermal Engineering ◽

10.1016/j.applthermaleng.2020.116470 ◽

2020 ◽

pp. 116470

Author(s):

Jinqi Zhu ◽

Ruifeng Dou ◽

Ye Hu ◽

Shixing Zhang ◽

Xuyun Wang

Keyword(s):

Heat Transfer ◽

Reynolds Number ◽

Jet Impingement ◽

Slot Nozzle ◽

Air Jet

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Study of Correctly Expanded Sonic Jet with Air Tabs

International Journal of Turbo and Jet Engines ◽

10.1515/tjj-2020-0005 ◽

2020 ◽

Vol 0 (0) ◽

Author(s):

Arun Prasad R ◽

Thanigaiarasu S ◽

Sembaruthi M ◽

Rathakrishnan E

Keyword(s):

Numerical Study ◽

Cross Sectional ◽

Potential Core ◽

Convergent Nozzle ◽

Jet Mixing ◽

Pressure Profiles ◽

Constant Diameter ◽

Sonic Jet ◽

Sectional Shape ◽

Length Reduction

AbstractThe present numerical study is to understand the effect of air tabs located at the exit of a convergent nozzle on the spreading and mixing characteristics of correctly expanded sonic primary jet. Air tabs used in this study are two secondary jets issuing from constant diameter tubes located diametrically opposite at the periphery of the primary nozzle exit, normal to the primary jet. Two air tabs of Mach numbers 1.0 to 1.4, in steps of 0.1 are considered in this study. The mixing modification caused by air tabs are analysed by considering the mixing of uncontrolled (free) primary jet as a reference. Substantial enhancement in jet mixing is achieved with Mach 1.4 air tabs, which results in 80 % potential core length reduction. The total pressure profiles taken on the plane (YZ) normal to the primary jet axis, at various locations along the primary jet centreline revealed the modification of the jet cross sectional shape by air tabs. The stream-wise vortices and bifurcation of the primary jet caused by air tabs are found to be the mechanism behind the enhanced jet mixing.

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