Exact(1)
In the case of small size vent condition, the value of first peak P1 is mainly determined by the rupture pressure, while the value of second peak P2, and the rates of increase to P1 and P2 are mainly affected by the concentration.
Similar(59)
The experiment results show that vented explosion behaviors are related to various vent conditions.
Novikov, Y. & Copley, S. D. Reactivity landscape of pyruvate under simulated hydrothermal vent conditions.
Moreover, secondary explosion, due to the backflow of external gas, will occur in high concentrations under large size vent conditions.
Double-peak pressure curves were recorded under small size vent conditions, while overpressure curves with only one peak were recorded under large size venting.
Vented explosion experiments of ethylene-air mixtures were conducted in a custom-designed 2 × 1.2 × 0.6 m3 steel chamber under three vent conditions to study the effect of vent size and vent type on overpressure under different concentrations.
There is a clear difference between the recorded values of P2 at two measurement points, which indicates that there is a pressure gradient induced by small size vent conditions due to the change of flow cross-section.
Parameters used and vent conditions are given in Table 1.
Accordingly, the free energy values chosen to model the formation of ferrosic hydroxide (Table 2) were those obtained from the laboratory experiments of Arden,[31] as these conditions are most similar to the vent conditions on the seafloor.
Parameters used and vent conditions are given in Table 1. Figure 3 illustrates the cross-sectional distribution of physical quantities at 480 s, with a gas-pyroclast mixture ejected from the vent with a higher density (5.74 kg m−3) and a higher temperature (1273 K) than the density (1.11 kg m−3) and temperature (270 K) of the atmosphere at ground level (1400 m asl).
[39] Free energy values for ferric hydroxide Fe(OH 3 in the Lindsay database, such as those of Schindler et al. [40] and Sadiq and Lindsay[39] were not considered because these were obtained on aged material whose conditions of formation are far removed from the vent conditions at Franklin Seamount.
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