TY - JOUR
T1 - Diagnostics for liquid dispersion due to a high-speed impact with accident or vulnerability assessment application
AU - Jepsen, Richard A.
AU - O'Hern, Timothy
AU - Demosthenous, Byron
AU - Bystrom, Ed
AU - Nissen, Mark
AU - Romero, Edward
AU - Yoon, Sam S.
PY - 2009
Y1 - 2009
N2 - The high-speed impact and subsequent dispersion of a large liquid slug is of interest for assessing vulnerability of structures when subjected to such an event. The Weber number associated with such liquid impacts is generally between 105 and 108. Because of the experiment scale and destructive nature of these high-energy impacts, most traditional diagnostics are difficult to implement. Therefore, unique diagnostics were employed in several tests to gather information on impact force, spreading instability, slug break-up, ejection velocity, droplet deformation and spray characteristics. Measurement techniques discussed here include high-speed photometrics, particle image velocimetry (PIV), TrackEye particle analysis, speckle correlation, single-pass schlieren imaging, phase Doppler particle analyzer (PDPA) and load cell measurements as applied to large-scale, high-speed liquid impacts.
AB - The high-speed impact and subsequent dispersion of a large liquid slug is of interest for assessing vulnerability of structures when subjected to such an event. The Weber number associated with such liquid impacts is generally between 105 and 108. Because of the experiment scale and destructive nature of these high-energy impacts, most traditional diagnostics are difficult to implement. Therefore, unique diagnostics were employed in several tests to gather information on impact force, spreading instability, slug break-up, ejection velocity, droplet deformation and spray characteristics. Measurement techniques discussed here include high-speed photometrics, particle image velocimetry (PIV), TrackEye particle analysis, speckle correlation, single-pass schlieren imaging, phase Doppler particle analyzer (PDPA) and load cell measurements as applied to large-scale, high-speed liquid impacts.
KW - Diagnostics
KW - Dispersion
KW - Impact
KW - Vulnerability assessment
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U2 - 10.1088/0957-0233/20/2/025401
DO - 10.1088/0957-0233/20/2/025401
M3 - Article
AN - SCOPUS:63749109397
VL - 20
JO - Measurement Science and Technology
JF - Measurement Science and Technology
SN - 0957-0233
IS - 2
M1 - 025401
ER -