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Proceedings of HT2007 2007 ASME-JSME Thermal Engineering Summer Heat Transfer Conference
 

Summary: Proceedings of HT2007
2007 ASME-JSME Thermal Engineering Summer Heat Transfer Conference
Vancouver, British Columbia, CANADA, July 8-12, 2007
DRAFT HT2007-32819
SPRAY AND COOLING DYNAMICS OF CRYOGEN SPRAYS IMPINGING ON A
HUMAN SKIN MODEL
Walfre Franco1,2, Henry Vu2, Wangcun Jia1, J. Stuart Nelson1 and Guillermo Aguilar2
1Beckman Laser Institute, University of California, Irvine, CA 92612
2
Department of Mechanical Engineering, University of California, Riverside, CA 92521
ABSTRACT
The objective of the present work is to correlate the time-
dependent flow characteristics of cryogen sprays to the induced
thermal dynamics at the surface of a human skin model. First,
a numerical analysis to evaluate our skin model is carried out.
Next, diameter and axial velocity of droplets impinging onto the
skin model are measured. Diameter, velocity and surface tem-
perature are acquired simultaneously at the center of the spray
cone close to and at the skin model surface, respectively. Spurt
durations of 10, 30 and 50 ms are investigated. Finally, mea-

  

Source: Aguilar, Guillermo - Department of Mechanical Engineering, University of California at Riverside

 

Collections: Engineering