Fluidic Jet vectoring at subsonic flow ay using counter flow method

Joint Authors

Ali, Umar Husayn
al-Asadi, Ali Abd al-Muhsin Hasan

Source

Nahrain University-College of Engineering Journal

Issue

Vol. 19, Issue 2 (31 Dec. 2016), pp.271-285, 15 p.

Publisher

Nahrain University College of Engineering

Publication Date

2016-12-31

Country of Publication

Iraq

No. of Pages

15

Main Subjects

Engineering & Technology Sciences (Multidisciplinary)

Abstract EN

Experimental & Computational and investigations of thrust vectoring by using counter flow method had been carried out in the present work.

The experimental investigation included design and construction of test rig with rectangular duct with aspect ratio of (4.4) in order to investigate the effect of various geometric variables on thrust vectoring angle.

Set of experiment at tests was carried out over the mass flow ratio (Ṁs/Ṁp) range 0 ≤ (Ṁs/Ṁp) ≤ 0.31 with secondary slot gap height g/H= (0.0294, 0.0588, 0.088 and 0.1176) and coanda surface diameter R/H= (1.176, 2.353, 3.529and 4.705).

Load measurements were obtained using four load cells.

The computational investigation involved a 3D numerical solution by FLUENT Software for some of experimental cases.

Experimental results show that the increase in secondary jet blowing rate lead to increasing in the jet vectoring angle, there are three zone can be observed, dead zone appears at low mass flow ratios, then followed by control region in which continuous thrust vector control can be achieved followed by a saturation region.

The length of the dead zone’ was also dependent on the size of the Coanda surface diameter which a small diameter resulted in a prolonged ‘dead zone’ range, and the secondary gap height to the primary gap height had inverse relation with jet vectoring angle.

The investigation shows that both the experimental and computational results obtained follow a similar trend line.

Mach number is less than 0.5.

American Psychological Association (APA)

al-Asadi, Ali Abd al-Muhsin Hasan& Ali, Umar Husayn. 2016. Fluidic Jet vectoring at subsonic flow ay using counter flow method. Nahrain University-College of Engineering Journal،Vol. 19, no. 2, pp.271-285.
https://search.emarefa.net/detail/BIM-819159

Modern Language Association (MLA)

al-Asadi, Ali Abd al-Muhsin Hasan& Ali, Umar Husayn. Fluidic Jet vectoring at subsonic flow ay using counter flow method. Nahrain University-College of Engineering Journal Vol. 19, no. 2 (Dec. 2016), pp.271-285.
https://search.emarefa.net/detail/BIM-819159

American Medical Association (AMA)

al-Asadi, Ali Abd al-Muhsin Hasan& Ali, Umar Husayn. Fluidic Jet vectoring at subsonic flow ay using counter flow method. Nahrain University-College of Engineering Journal. 2016. Vol. 19, no. 2, pp.271-285.
https://search.emarefa.net/detail/BIM-819159

Data Type

Journal Articles

Language

English

Notes

Record ID

BIM-819159