Velocity statistics of a fully pulsed round jet in streamwise direction

Pratomo, Hariyo P. S. and Bremhorst, Klaus (2014). Velocity statistics of a fully pulsed round jet in streamwise direction. In: Advances in Kinematics, Mechanics of Rigid Bodies, and Materials Sciences. 2013 International Conference on Kinematics, Mechanics of Rigid Bodies, and Materials, KINEMATICS 2013, Jakarta, Indonesia, (117-123). 2-3 November 2013. doi:10.4028/www.scientific.net/AMM.534.117

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Author Pratomo, Hariyo P. S.
Bremhorst, Klaus
Title of paper Velocity statistics of a fully pulsed round jet in streamwise direction
Conference name 2013 International Conference on Kinematics, Mechanics of Rigid Bodies, and Materials, KINEMATICS 2013
Conference location Jakarta, Indonesia
Conference dates 2-3 November 2013
Proceedings title Advances in Kinematics, Mechanics of Rigid Bodies, and Materials Sciences   Check publisher's open access policy
Journal name Applied Mechanics and Materials   Check publisher's open access policy
Place of Publication Stafa-Zurich, Switzerland
Publisher Trans Tech Publications Ltd.
Publication Year 2014
Sub-type Fully published paper
DOI 10.4028/www.scientific.net/AMM.534.117
Open Access Status File (Author Post-print)
ISBN 9783038350385
ISSN 1660-9336
Volume 534
Start page 117
End page 123
Total pages 7
Language eng
Abstract/Summary In this paper, statistical quantities of a fully pulsed round jet along the jet centerline are reported. A range of the Reynolds (1.5 × 104 < Re < 4 ×s 104) and Strouhal (0.0064 < St < 0.0076) numbers is used to generate the jet. Physically this unsteady jet produces a series of distinct pulses due to the excitations. The mechanically excitations lead to the appearance of pulse dominated and high turbulence steady jet region in which their existence is of a strong dependence on the level of the controlled parameters. After the pulse merging completes the pulsed jet alters to a selfpreserving steady jet with a significantly higher turbulence intensity. Under a constant mass flow rate the pulsed jet tends to be more fluctuating at a less intense pulsation thus permitting the endurance of the normalized periodic component and a more rapid velocity decay in the pulsedominated region.
Subjects 2200 Engineering
Keyword Hot Wire Anemometer
Pulsed jet
Reynolds number
Strouhal number
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Tue, 15 Apr 2014, 10:24:37 EST by System User on behalf of School of Mechanical and Mining Engineering