The investigation focuses on optimizing the length of wind-pipe that transmits acoustic energy from the compression driver to the cavity of twin-fluid atomizers. To accomplish this objective, the primary variable of stability, that is, the breakup length of liquid jet and sheet under acoustic perturbations has been experimentally characterized for a range of wind-pipe length and liquid velocity. The analysis considers liquid phase Weber number in the range of 0.7–8, and the results are compared with primary breakup data without acoustic perturbations. The range of Weber number tested belongs to Rayleigh breakup zone, so that inertia force is negligible compared to surface tension force. It shows the existence of unique stability functions based on dimensionless products up to an optimum wind-pipe length, which extends greater for liquid sheet configuration. The present results may find relevance in atomizer design that utilizes acoustic source to enhance liquid column breakup processes.
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August 2016
Technical Briefs
Empirical Correlation of the Primary Stability Variable of Liquid Jet and Liquid Sheet Under Acoustic Field
V. Sivadas,
V. Sivadas
Associate Professor
Department of Aerospace Engineering,
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mails: vayalakkara@yahoo.co.in;
v_sivadas@cb.amrita.edu
Department of Aerospace Engineering,
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mails: vayalakkara@yahoo.co.in;
v_sivadas@cb.amrita.edu
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K. Balaji,
K. Balaji
Assistant Professor
Department of Mechanical Engineering,
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mail: k_balaji@cb.amrita.edu
Department of Mechanical Engineering,
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mail: k_balaji@cb.amrita.edu
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M. Sampathkumar,
M. Sampathkumar
Mechanical Engineering,
University of Leuven—KU Leuven,
Oude Markt 13, bus 5005,
Leuven 3000, Belgium
e-mail: sampath.kumar.mulagaleti@gmail.com
University of Leuven—KU Leuven,
Oude Markt 13, bus 5005,
Leuven 3000, Belgium
e-mail: sampath.kumar.mulagaleti@gmail.com
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Koneru Saidileep
Koneru Saidileep
Mechanical Engineering,
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mail: Saidileep543@gmail.com
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mail: Saidileep543@gmail.com
Search for other works by this author on:
V. Sivadas
Associate Professor
Department of Aerospace Engineering,
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mails: vayalakkara@yahoo.co.in;
v_sivadas@cb.amrita.edu
Department of Aerospace Engineering,
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mails: vayalakkara@yahoo.co.in;
v_sivadas@cb.amrita.edu
K. Balaji
Assistant Professor
Department of Mechanical Engineering,
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mail: k_balaji@cb.amrita.edu
Department of Mechanical Engineering,
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mail: k_balaji@cb.amrita.edu
M. Sampathkumar
Mechanical Engineering,
University of Leuven—KU Leuven,
Oude Markt 13, bus 5005,
Leuven 3000, Belgium
e-mail: sampath.kumar.mulagaleti@gmail.com
University of Leuven—KU Leuven,
Oude Markt 13, bus 5005,
Leuven 3000, Belgium
e-mail: sampath.kumar.mulagaleti@gmail.com
M. M. Hassan
K. M. Karthik
Koneru Saidileep
Mechanical Engineering,
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mail: Saidileep543@gmail.com
Amrita School of Engineering,
Amrita Vishwa Vidyapeetham (University),
Coimbatore 641112, India
e-mail: Saidileep543@gmail.com
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received September 22, 2015; final manuscript received February 16, 2016; published online May 18, 2016. Assoc. Editor: John Abraham.
J. Fluids Eng. Aug 2016, 138(8): 084501 (6 pages)
Published Online: May 18, 2016
Article history
Received:
September 22, 2015
Revised:
February 16, 2016
Citation
Sivadas, V., Balaji, K., Sampathkumar, M., Hassan, M. M., Karthik, K. M., and Saidileep, K. (May 18, 2016). "Empirical Correlation of the Primary Stability Variable of Liquid Jet and Liquid Sheet Under Acoustic Field." ASME. J. Fluids Eng. August 2016; 138(8): 084501. https://doi.org/10.1115/1.4033028
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