Observed Structure of Spray Detonations
dc.contributor.author | Ragland, Kenneth W. | en_US |
dc.contributor.author | Dabora, Eliahou K. (Eliahou Khedhoory) | en_US |
dc.contributor.author | Nicholls, James Arthur | en_US |
dc.date.accessioned | 2010-05-06T23:36:23Z | |
dc.date.available | 2010-05-06T23:36:23Z | |
dc.date.issued | 1968-11 | en_US |
dc.identifier.citation | Ragland, K. W.; Dabora, E. K.; Nicholls, J. A. (1968). "Observed Structure of Spray Detonations." Physics of Fluids 11(11): 2377-2388. <http://hdl.handle.net/2027.42/71352> | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/71352 | |
dc.description.abstract | The propagation of a detonation wave in a tube containing a single stream of 2600‐μ‐diam diethylcyclohexane droplets dispersed in gaseous oxygen has been studied with streak and space resolved photography, special pressure transducers, and thin‐film heat‐transfer gauges. The detonation wave, which reached a velocity of 4100 ft/sec, consisted of a planar shock front followed by secondary shocks and a gradual decrease in pressure as heat is added. A detailed history of an individual drop within the reaction zone is presented. Under the observed conditions a 2600‐μ‐drop disintegrates continuously over a period of 500 μsec. Combustion is initiated in the wake of the drops at 65 μsec after the passage of the shock with the reaction zone considered completed in 670 μsec. One‐dimensional equations for a two‐phase Chapman‐Jouguet detonation wave with mass and heat addition within the reaction zone, and momentum and heat transfer out of the reaction zone are derived. Comparison of the experiments with the theoretical prediction yields a reasonable agreement. | en_US |
dc.format.extent | 3102 bytes | |
dc.format.extent | 1102430 bytes | |
dc.format.mimetype | text/plain | |
dc.format.mimetype | application/pdf | |
dc.publisher | The American Institute of Physics | en_US |
dc.rights | © The American Institute of Physics | en_US |
dc.title | Observed Structure of Spray Detonations | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Gas Dynamics Laboratories, Department of Aerospace Engineering The University of Michigan, Ann Arbor, Michigan | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/71352/2/PFLDAS-11-11-2377-1.pdf | |
dc.identifier.doi | 10.1063/1.1691827 | en_US |
dc.identifier.source | Physics of Fluids | en_US |
dc.identifier.citedreference | F. A. Williams, Phys. Fluids 4, 1434 (1961). | en_US |
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dc.identifier.citedreference | F. B. Cramer, in Ninth International Symposium, on Combustion (Academic Press Inc., New York, 1963), p. 482. | en_US |
dc.identifier.citedreference | E. K. Dabora, K. W. Ragland, and J. A. Nicholls, Astronautica Acta 12, 9 (1966). | en_US |
dc.identifier.citedreference | It has been shown that a tube which is coated with a thin layer of liquid and is filled only with oxygen can also support a two phase detonation. See Ref. 5 and K. W. Ragland, Ph.D. thesis, The University of Michigan (1967). | en_US |
dc.identifier.citedreference | E. K. Dabora, K. W. Ragland, and J. A. Nicholls, in Twelfth Symposium (International) on Combustion (Combustion Institute, Pittsburgh, Pennsylvania) (to be published). | en_US |
dc.identifier.citedreference | E. K. Dabora, Rev. Sci. Instr. 38, 502 (1967). | en_US |
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dc.identifier.citedreference | K. W. Ragland and R. E. Cullen, Rev. Sci. Instr. 38, 740 (1967). | en_US |
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dc.identifier.citedreference | When the dynamic pressure is very low such that it is of the order of the surface tension pressure a different type of breakup is observed, which is termed “bag type” (i.e., the drop inflates like a parachute until it bursts in the center). At still lower dynamic pressures the drop vibrates with increasing amplitude until it breaks up. | en_US |
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dc.identifier.citedreference | I. I. Glass and G. J. Hall, in Handbook of Supersonic Aerodynamics: Shock Tubes (U.S. Government Printing Office, Washington, D.C., 1959), Vol. 6, Sec. 18. | en_US |
dc.identifier.citedreference | H. Schlichting, Boundary Layer Theory (McGraw‐Hill Book Company, New York, 1960), p. 537. | en_US |
dc.identifier.citedreference | P. B. Gooderum, NACA Technical Note 4243 (1958). | en_US |
dc.owningcollname | Physics, Department of |
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