2020
DOI: 10.1016/j.ijmultiphaseflow.2020.103360
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Numerical and experimental analysis of flashing cryogenic nitrogen

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Cited by 27 publications
(24 citation statements)
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“…The sudden decay in the axial velocity of the LN2 experiments at y ∕D = 70 was not observed in the ethanol sprays. This is due to the occurrence of a re-circulation zone in the LN2 jets, as corroborated by the numerical simulations of Gärtner et al (2020). In their numerical study with experimental data of both fluids, the presence of negative velocity fields due to shock systems in the same regions was shown.…”
Section: Vertical Velocity Distributionmentioning
confidence: 57%
“…The sudden decay in the axial velocity of the LN2 experiments at y ∕D = 70 was not observed in the ethanol sprays. This is due to the occurrence of a re-circulation zone in the LN2 jets, as corroborated by the numerical simulations of Gärtner et al (2020). In their numerical study with experimental data of both fluids, the presence of negative velocity fields due to shock systems in the same regions was shown.…”
Section: Vertical Velocity Distributionmentioning
confidence: 57%
“…Due to the evaporating liquid the flow exits the injector with a higher pressure than the ambient conditions which leads to a shock system downstream. A compressible two-phase solver has been developed in OpenFOAM [7,8] to simulate the flashing process from liquid injection to nucleation, bubble growth, breakup and coalescence. This solver uses the volume of fluid approach to distinguish between the two phases and the homogeneous relaxation model to calculate the evaporation rate.…”
Section: Investigations Of Multi-componentmentioning
confidence: 99%
“…To investigate the spray kinematics and the flow in the injector nozzle, 2D simulations of the four cases, with a grid size of 10 µm, are set up, see also Figure 5. The flashing nitrogen flow is solved with a compressible two-phase, one component solver developed in OpenFOAM [17]. The solver has already been applied to flashing flows and has proven its suitability to predict flashing sprays.…”
Section: Numerical Set-upmentioning
confidence: 99%