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Numerical Modeling of Isolated Oxygen Droplet Evaporation in Steam. A First Approach.

Slavinskaya, N. and Haidn, O. (2000) Numerical Modeling of Isolated Oxygen Droplet Evaporation in Steam. A First Approach. In: 16th Annual Conference on Liquid Atomization and Spray Systems, VIII.3.7-. ILASS-Europe 2000; 16th Annual Conference on Liquid Atomization and Spray Systems, Darmstadt, 11-13 September 2000. ISBN VIII.3.1.

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Abstract

The problem of non-equilibrium boundary conditions on an evaporating liquid oxygen (LOX) droplet is considered. Temperature and concentration jumps were used to describe the kinetic effects on the droplet surface under high ambient temperature. The properties of these jump formalisms were analyzed and the possibility of its employment in a numerical study of evaporation in a LOX/H2O system investigated. With these conditions the numerical modeling of quasi-stead evaporation of LOX in stagnant steam was carried out: drop lifetimes and analytical solutions for temperature and concentrations distributions in the vicinity of evaporating droplet are derived. The coefficients of temperature and concentration jumps demonstrate great sensitivity to thermophysical properties of the system. The results show that the implied boundary conditions are valid for the modeling of evaporation especially in systems with very questionable equilibrium conditions on the phase boundary.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2000,
Title:Numerical Modeling of Isolated Oxygen Droplet Evaporation in Steam. A First Approach.
Authors:
AuthorsInstitution or Email of Authors
Slavinskaya, N.CIAM
Haidn, O.Raumfahrtantriebe
Date:2000
Journal or Publication Title:16th Annual Conference on Liquid Atomization and Spray Systems
Page Range:VIII.3.7-
Editors:
EditorsEmail
Tropea, C.UNSPECIFIED
Heukelbach, K., TU-Darmstadt, Germany, UNSPECIFIED
ISBN:VIII.3.1
Status:Published
Event Title:ILASS-Europe 2000; 16th Annual Conference on Liquid Atomization and Spray Systems, Darmstadt, 11-13 September 2000
Organizer:Technische Universität Darmstadt
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):E -- no assignement
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 13:49

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