Flash-evaporation of oxidizer spray during start-up of an upper-stage rocket engine

R. Schmehl; J. Steelant

Flash-evaporation of oxidizer spray during start-up of an upper-stage rocket engine

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

11 Citations (Scopus)

Abstract

The low-pressure oxidizer preflow during start-up of an upper-stage rocket engine is analyzed computationally. An iterative Euler-Lagrange approach is used to describe the three-dimensional two-phase flow of oxidizer vapour and spray which is characterized by intense phase transfer. Multipoint injection and flash-atomization of liquid oxidizer is modelled by stochastic droplet injection according to injector locations and spray characteristics. Based on the framework of classical D²-theory, a flash-evaporation model is developed to describe heat and mass transfer between superheated liquid droplets and vapour flow. The computed transsonic flow field agrees well with experimental characteristics such as pressure level and temperature decrease and further provides detailed local information on vapour flow homogeneity and liquid wall deposit.

Original language	English
Title of host publication	39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Publication status	Published - 1 Dec 2003
Externally published	Yes
Event	39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2003 - Huntsville, AL, United States Duration: 20 Jul 2003 → 23 Jul 2003

Conference

Conference	39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2003
Country/Territory	United States
City	Huntsville, AL
Period	20/07/03 → 23/07/03

Cite this

@inproceedings{6c94d25398784a199cafe82db31df8da,

title = "Flash-evaporation of oxidizer spray during start-up of an upper-stage rocket engine",

abstract = "The low-pressure oxidizer preflow during start-up of an upper-stage rocket engine is analyzed computationally. An iterative Euler-Lagrange approach is used to describe the three-dimensional two-phase flow of oxidizer vapour and spray which is characterized by intense phase transfer. Multipoint injection and flash-atomization of liquid oxidizer is modelled by stochastic droplet injection according to injector locations and spray characteristics. Based on the framework of classical D2-theory, a flash-evaporation model is developed to describe heat and mass transfer between superheated liquid droplets and vapour flow. The computed transsonic flow field agrees well with experimental characteristics such as pressure level and temperature decrease and further provides detailed local information on vapour flow homogeneity and liquid wall deposit.",

author = "R. Schmehl and J. Steelant",

year = "2003",

month = dec,

day = "1",

language = "English",

isbn = "9781624100987",

booktitle = "39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit",

note = "39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2003 ; Conference date: 20-07-2003 Through 23-07-2003",

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TY - GEN

T1 - Flash-evaporation of oxidizer spray during start-up of an upper-stage rocket engine

AU - Schmehl, R.

AU - Steelant, J.

PY - 2003/12/1

Y1 - 2003/12/1

N2 - The low-pressure oxidizer preflow during start-up of an upper-stage rocket engine is analyzed computationally. An iterative Euler-Lagrange approach is used to describe the three-dimensional two-phase flow of oxidizer vapour and spray which is characterized by intense phase transfer. Multipoint injection and flash-atomization of liquid oxidizer is modelled by stochastic droplet injection according to injector locations and spray characteristics. Based on the framework of classical D2-theory, a flash-evaporation model is developed to describe heat and mass transfer between superheated liquid droplets and vapour flow. The computed transsonic flow field agrees well with experimental characteristics such as pressure level and temperature decrease and further provides detailed local information on vapour flow homogeneity and liquid wall deposit.

AB - The low-pressure oxidizer preflow during start-up of an upper-stage rocket engine is analyzed computationally. An iterative Euler-Lagrange approach is used to describe the three-dimensional two-phase flow of oxidizer vapour and spray which is characterized by intense phase transfer. Multipoint injection and flash-atomization of liquid oxidizer is modelled by stochastic droplet injection according to injector locations and spray characteristics. Based on the framework of classical D2-theory, a flash-evaporation model is developed to describe heat and mass transfer between superheated liquid droplets and vapour flow. The computed transsonic flow field agrees well with experimental characteristics such as pressure level and temperature decrease and further provides detailed local information on vapour flow homogeneity and liquid wall deposit.

UR - http://www.scopus.com/inward/record.url?scp=84897585952&partnerID=8YFLogxK

M3 - Conference contribution

SN - 9781624100987

BT - 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

T2 - 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2003

Y2 - 20 July 2003 through 23 July 2003

ER -

Flash-evaporation of oxidizer spray during start-up of an upper-stage rocket engine

Abstract

Conference

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