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Analytical and Numerical Validation of Nozzle Spray Measurement Data Obtained from a Newly Developed Production System

Seidu, Iddrisu
http://rave.ohiolink.edu/etdc/view?acc_num=csu1446504762

Abstract Details

2015, Master of Science in Mechanical Engineering, Cleveland State University, Washkewicz College of Engineering.
A newly developed production test stand for measuring the spray angle of a pressure swirl atomizer was constructed and used to measure a product line of these pressure swirl atomizers – the macrospray atomizer. This new test stand, utilizing constant temperature hot wire anemometers, captures the spray angle data based on the voltage drop the hot wire probes see as they traverse the spray cone of the atomizer and as fluid droplets impinge upon the wire. Datasets acquired from the experiments are compared and correlated with computational fluid dynamics (CFD) simulation data. In addition, angles obtained from another type of spray characterization technique, the spray angle device, are also compared to see how closely CFD can predict the angle as captured by this new stand and how reliable and independent of human error it is. Another nozzle with a pressure swirl atomizer, the conventional atomizer, is also simulated to compare its agreement with experimental values obtained from the spray angle device. Finally, the datasets are compared to understand if the CFD results, when compared to the two spray characterization techniques used in this thesis for both the nozzle and atomizer can be utilized to assist in future atomizer designs. For the macrospray atomizer, it was found through the experiments that the hot wire stand predicts the spray angle more accurately within 10% error. The spray angle device measured the spray angles within an error of 29% while the CFD introduced more error into the spray angle measurement obtained, within 7% to 93%. The conventional atomizer was found to have an error up to 18% with CFD results and up to 28% with the manual spray angle device.
Mounir Ibrahim, Ph.D. (Committee Chair)
Vikram Shyam, Ph.D. (Committee Member)
Ralph Volino, Ph.D. (Committee Member)
Engineering; Fluid Dynamics; Mechanical Engineering
atomization; spray; angles; hot wire anemometry; CFD; simulation; computational fluid dynamics; atomizers; atomizer; pressure swirl atomizer; spray cone; spray; nozzle; nozzles; sprays; measurement; spray angle; cone; air core; hot wire anemometers;

Recommended Citations

Citations

  • Seidu, I. (2015). Analytical and Numerical Validation of Nozzle Spray Measurement Data Obtained from a Newly Developed Production System [Master's thesis, Cleveland State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=csu1446504762

    APA Style (7th edition)

  • Seidu, Iddrisu. Analytical and Numerical Validation of Nozzle Spray Measurement Data Obtained from a Newly Developed Production System. 2015. Cleveland State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=csu1446504762.

    MLA Style (8th edition)

  • Seidu, Iddrisu. "Analytical and Numerical Validation of Nozzle Spray Measurement Data Obtained from a Newly Developed Production System." Master's thesis, Cleveland State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=csu1446504762

    Chicago Manual of Style (17th edition)

csu1446504762
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© 2015, all rights reserved.
This open access ETD is published by Cleveland State University and OhioLINK.