Validation of the use of SHARC Hydrocode to predict explosion effects in vented chambers

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dc.contributor.advisor Ghosh, Amitabha
dc.contributor.advisor Kandlikar, Satish
dc.contributor.advisor Sciremammano, Frank
dc.contributor.author Bush, Gary
dc.date.accessioned 2010-12-22T19:49:32Z
dc.date.available 2010-12-22T19:49:32Z
dc.date.issued 1996-04
dc.identifier.uri http://hdl.handle.net/1850/13080
dc.description.abstract Computational Fluid Dynamics (CFD) models were created and analyzed using the commercially available hydrocode SHARC to determine if SHARC can accurately predict the behavior of explosions in enclosed vented chambers. Axisymmetric two-dimensional models were generated using the same physical parameters used in similar model tests performed by the US Army. Three different chamber/vent configurations were investigated with three charge sizes per configuration in order to compare the SHARC results to the data obtained from the model tests. The time of arrival of shocks and the peak over-pressure were compared. The calculations were then analyzed using several graphical tools currently available. It was found that SHARC is able to produce valid results, but with some limitations. One such limitation stems from the nature of computational fluid dynamics calculations in that some information is lost due to the discrete time steps used for calculating the various flow field parameters. Another limitation was introduced by the utility program necessary for restarting the code due to the interpolating process it uses to generate data for input to future executions of SHARC. As with any software used as an engineering aid, SHARC must be used with caution. Plots of flow parameters are recommended to analyze physical trends. Comparison plots are presented here for trend information only in the absence of highly expensive benchmark-quality data. en_US
dc.language.iso en_US en_US
dc.subject Mechanical engineering en_US
dc.subject.lcc QA927 .B884 1996 en_US
dc.subject.lcsh Shock waves--Fluid dynamics--Mathematical models en_US
dc.subject.lcsh Detonation waves--Fluid dynamics--Mathematical models en_US
dc.subject.lcsh Fluid dynamics--Mathematical models en_US
dc.title Validation of the use of SHARC Hydrocode to predict explosion effects in vented chambers en_US
dc.type Thesis en_US
dc.description.college Kate Gleason College of Engineering en_US
dc.description.department Department of Mechanical Engineering en_US

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