TY - GEN
T1 - Computational investigations of air entrainment, hysteresis, and loading for large-scale, buoyant cavities
AU - Kinzel, Michael P.
AU - Lindau, Jules W.
AU - Peltier, Joel
AU - Zajaczkowski, Frank
AU - Mallison, Thomas
AU - Kunz, Robert F.
AU - Arndt, Roger
AU - Wosnik, Martin
PY - 2007
Y1 - 2007
N2 - A complete physical model of ventilated supercavitation is not well established. Efforts documented display the ability, with a finite volume, locally homogeneous approach, to simulate supercavitating flows and obtain good agreement with experiments. Several modeling requirements appear critical, especially in physical hysteretic conditions or configurations. The hysteresis presented is due to obstruction of the flow with a solid object. The modeling approach taken correctly captures a full hysteresis loop and the corresponding dimensionless ventilation rate to cavity pressure (CQ-σ) relationship. This correspondence supports the suggestion that the main mechanism of cavity gas entrainment is via shear layers attached to the cavity walls. With such validated solutions, additional insight into the flow within the cavity is gained.
AB - A complete physical model of ventilated supercavitation is not well established. Efforts documented display the ability, with a finite volume, locally homogeneous approach, to simulate supercavitating flows and obtain good agreement with experiments. Several modeling requirements appear critical, especially in physical hysteretic conditions or configurations. The hysteresis presented is due to obstruction of the flow with a solid object. The modeling approach taken correctly captures a full hysteresis loop and the corresponding dimensionless ventilation rate to cavity pressure (CQ-σ) relationship. This correspondence supports the suggestion that the main mechanism of cavity gas entrainment is via shear layers attached to the cavity walls. With such validated solutions, additional insight into the flow within the cavity is gained.
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U2 - 10.1109/HPCMP-UGC.2007.19
DO - 10.1109/HPCMP-UGC.2007.19
M3 - Conference contribution
AN - SCOPUS:50049088531
SN - 0769530885
SN - 9780769530888
T3 - Department of Defense - Proceedings of the HPCMP Users Group Conference 2007; High Performance Computing Modernization Program: A Bridge to Future Defense, DoD HPCMP UGC
SP - 89
EP - 97
BT - Department of Defense - Proceedings of the HPCMP Users Group Conference 2007; High Performance Computing Modernization Program
T2 - Department of Defense - HPCMP Users Group Conference 2007; High Performance Computing Modernization Program: A Bridge to Future Defense, DoD HPCMP UGC
Y2 - 18 June 2007 through 21 June 2007
ER -