Journal
JOURNAL OF SUPERCRITICAL FLUIDS
Volume 187, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.supflu.2022.105631
Keywords
Supercritical fluids; Clusters; Redlich-Kwong equation; Rayleigh scattering
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Funding
- Russian Foundation for Basic Research (RFBR)
- Rosatom State Corporation [20-21-00030]
- RF Ministry of Science and Higher Education as part of the state research task for the Crystallography and Photonics Federal Research Center, Russian Academy of Sciences
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A gas dynamic model based on the RedlichKwong equation of state has been developed to describe the supersonic expansion of a real gas flow in a nozzle. The model was tested and verified through calculations and experiments on clustering in Ar and Kr flows, as well as on creating X-ray sources and accelerated electron beams through relativistic laser action on a krypton cluster jet.
A gas dynamic model of supersonic expansion of a real (supercritical) gas flow in nozzle based on the RedlichKwong equation of state has been developed. The proposed model can serve as a basis for describing the expansion of the main gas (carrier gas), against which processes of interest (formation of clusters, microcapsules, condensation) occur. Specific calculations were performed for clustering in Ar and Kr flow. Experimental verification of results of the model calculations of the sizes and densities of Ar and Kr clusters using the Rayleigh scattering method was performed. The proposed model for describing cluster jets has been tested in the experiments aimed at creating X-ray sources and accelerated electron beams in the process of relativistic laser action on a krypton cluster jet.
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