Cryogenic mixing with phase change in the simulation of [formula omitted] explosion hazards: shallow mixing mode

Experiments simulating mixing of liquid oxygen (LO 2) and liquid hydrogen (LH 2) have been performed to investigate the potential threat to the RTGs (Radioisotope Thermoelectric Generators) from an explosion of these cryogens as a result of a launch vehicle accident. The influence of the bottom wall...

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Bibliographic Details
Published in:International journal of heat and mass transfer 1994-11, Vol.37 (16), p.2535-2546
Main Authors: Kwack, E.Y., Luchik, T.S., Back, L.H.
Format: Article
Language:English
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Summary:Experiments simulating mixing of liquid oxygen (LO 2) and liquid hydrogen (LH 2) have been performed to investigate the potential threat to the RTGs (Radioisotope Thermoelectric Generators) from an explosion of these cryogens as a result of a launch vehicle accident. The influence of the bottom wall of a dewar (spilled mode) has been evaluated in this investigation by using a shallow dewar (38.7 cm I.D. and 30.5 cm tall). The jet size was 1.27 cm O.D. and the jet velocity was varied from 3.97 to 8.75 m s −1. The jet dump duration times were 0.45 and 1.15 s. Gas temperatures and the boil-off of the hydrogen were measured using thermocouples and hot films. The general mixing behavior was observed with high speed video imaging.
ISSN:0017-9310
1879-2189
DOI:10.1016/0017-9310(94)90291-7