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Complete adiabatic evaporation of highly superheated liquid jets.

Kurschat, Th. (1) and Chaves, H.(1) and Meier, G.E.A. (1992) Complete adiabatic evaporation of highly superheated liquid jets. Journal "Fluid Mechanics" Vol. 236 (1992) pp. 43-59, pp. 43-59.

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Abstract

A nozzle expansion into a vacuum chamber was used to investigate the evaporation of highly superheated liquid jets. The large molar specific heat of fluids with high molucular complexity - in this caseC 6 F 14- is responsible for the new phenomena reported here. A modelwas developed to describe the basic physical effects. A cubic equation of state was used to describe the thermodynamic properties of the fluid. The evaporation was modelled as a sonic deflagration followed by an axisymmetrie supersonic expansion. As in the case of hypersonic gas jets the final state is reached by a normal shock. Forsufficiently high temperatures and expansion ratios a complete adiabatic evaporation of the liquid was found. At even higher temperatures the liquid evaporates completely within a rarefaction discontinuity. The predictions of the model are in good agreement with the experimental results.

Item URL in elib:https://elib.dlr.de/36904/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=1992, pages=17,
Title:Complete adiabatic evaporation of highly superheated liquid jets.
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kurschat, Th. (1)UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Chaves, H.(1)UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Meier, G.E.A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:1992
Journal or Publication Title:Journal "Fluid Mechanics" Vol. 236 (1992) pp. 43-59
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Page Range:pp. 43-59
Status:Published
Keywords:Nozzle expansion, vacuum chamber, evaporation, superheated liquid jets, large molar specific heat, cubic equation of state, supersonic expansion, normal shock, rarefaction discontinuity.
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L TG - Querschnittstechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik
Deposited By: DLR-Beauftragter, elib
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:07

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