Studies and Analyses of the Mixing Phenomena of Liquid Propellants Leading to a Yield‐time Function Relationship

Farber, E. A.; Martin, R.

doi:10.1111/j.1749-6632.1968.tb12008.x

Cited by 1 publication

(2 citation statements)

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“…These were used as inputs into the new blast model. Specific works by Dr. E. A. Farber [41][42][43][44][45][46][47][48] and Mr. E. J. Tomei [49][50][51][52] were useful in this task.…”

Section: Andmentioning

confidence: 99%

“…Research performed by Dr. Eric Farber and Wallace Boggs [41][42][43][44][45][46][47][48]79 indicates that a finite amount of liquid fuel and oxidizer can be mixed before auto-ignition occurs, known as the Farber limit. Their work "confirmed that autoignition occurs and prevents the mixing of more than the 'critical mass' and therefore limits the explosive yield to several thousand pounds…" In the case of LOX/LH 2 , the Farber limit is approximately 2,300 lbm.…”

Section: Hydrogen/oxygen Detonation Pressurementioning

confidence: 99%

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An Empirical Non-TNT Approach to Launch Vehicle Explosion Modeling

Blackwood¹,

Skinner

Richardson

et al. 2015

53rd AIAA Aerospace Sciences Meeting

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In an effort to increase crew survivability from catastrophic explosions of Launch Vehicles (LV), a study was conducted to determine the best method for predicting LV explosion environments in the near field. After reviewing such methods as TNT equivalence, Vapor Cloud Explosion (VCE) theory, and Computational Fluid Dynamics (CFD), it was determined that the best approach for this study was to assemble all available empirical data from full scale launch vehicle explosion tests and accidents. Approximately 25 accidents or full-scale tests were found that had some amount of measured blast wave, thermal, or fragment explosion environment characteristics. Blast wave overpressure was found to be much lower in the near field than predicted by most TNT equivalence methods. Additionally, fragments tended to be larger, fewer, and slower than expected if the driving force was from a high explosive type event. In light of these discoveries, a simple model for cryogenic rocket explosions is presented. Predictions from this model encompass all known applicable fullscale launch vehicle explosion data. Finally, a brief description of on-going analysis and testing to further refine the launch vehicle explosion environment is discussed.

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“…These were used as inputs into the new blast model. Specific works by Dr. E. A. Farber [41][42][43][44][45][46][47][48] and Mr. E. J. Tomei [49][50][51][52] were useful in this task.…”

Section: Andmentioning

confidence: 99%

Section: Hydrogen/oxygen Detonation Pressurementioning

confidence: 99%