A fully nonlinear primary atomization model

Sam S. Yoon; Stephen D. Heistery

A fully nonlinear primary atomization model

Sam S. Yoon, Stephen D. Heistery

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A nonlinear model has been developed to assess the time-dependent evolution of an axisymmetric liquid jet using a boundary element method. Vorticity trans- ported from the boundary layer in the oriflce passage to the free surface is modeled using a potential ring vortex placed at the oriflce exit plane. The vortex- strength is approximated using information from a Navier-Stokes solution (or equivalent) of the oriflce in- ternal flow. It is observed that the primary breakup can occur even without the presence of the gas phase. Using a secondary stability analysis after Ponstein's,23 the size of droplets is estimated based on the size of the ring-type structures shed from the periphery of the jet. Computed droplet sizes are in reasonable agree- ment with experimental data.

Original language	English
Title of host publication	38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
Publication status	Published - 2002
Externally published	Yes
Event	38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2002 - Indianapolis, IN, United States Duration: 2002 Jul 7 → 2002 Jul 10

Publication series

Name	38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

Other

Other	38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2002
Country/Territory	United States
City	Indianapolis, IN
Period	02/7/7 → 02/7/10

ASJC Scopus subject areas

Aerospace Engineering
Control and Systems Engineering
Electrical and Electronic Engineering

Cite this

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title = "A fully nonlinear primary atomization model",

abstract = "A nonlinear model has been developed to assess the time-dependent evolution of an axisymmetric liquid jet using a boundary element method. Vorticity trans- ported from the boundary layer in the oriflce passage to the free surface is modeled using a potential ring vortex placed at the oriflce exit plane. The vortex- strength is approximated using information from a Navier-Stokes solution (or equivalent) of the oriflce in- ternal flow. It is observed that the primary breakup can occur even without the presence of the gas phase. Using a secondary stability analysis after Ponstein's,23 the size of droplets is estimated based on the size of the ring-type structures shed from the periphery of the jet. Computed droplet sizes are in reasonable agree- ment with experimental data.",

author = "Yoon, {Sam S.} and Heistery, {Stephen D.}",

year = "2002",

language = "English",

isbn = "9781624101151",

series = "38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit",

booktitle = "38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit",

note = "38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2002 ; Conference date: 07-07-2002 Through 10-07-2002",

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T1 - A fully nonlinear primary atomization model

AU - Yoon, Sam S.

AU - Heistery, Stephen D.

PY - 2002

Y1 - 2002

N2 - A nonlinear model has been developed to assess the time-dependent evolution of an axisymmetric liquid jet using a boundary element method. Vorticity trans- ported from the boundary layer in the oriflce passage to the free surface is modeled using a potential ring vortex placed at the oriflce exit plane. The vortex- strength is approximated using information from a Navier-Stokes solution (or equivalent) of the oriflce in- ternal flow. It is observed that the primary breakup can occur even without the presence of the gas phase. Using a secondary stability analysis after Ponstein's,23 the size of droplets is estimated based on the size of the ring-type structures shed from the periphery of the jet. Computed droplet sizes are in reasonable agree- ment with experimental data.

AB - A nonlinear model has been developed to assess the time-dependent evolution of an axisymmetric liquid jet using a boundary element method. Vorticity trans- ported from the boundary layer in the oriflce passage to the free surface is modeled using a potential ring vortex placed at the oriflce exit plane. The vortex- strength is approximated using information from a Navier-Stokes solution (or equivalent) of the oriflce in- ternal flow. It is observed that the primary breakup can occur even without the presence of the gas phase. Using a secondary stability analysis after Ponstein's,23 the size of droplets is estimated based on the size of the ring-type structures shed from the periphery of the jet. Computed droplet sizes are in reasonable agree- ment with experimental data.

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M3 - Conference contribution

AN - SCOPUS:84896692862

SN - 9781624101151

T3 - 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

BT - 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

T2 - 38th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2002

Y2 - 7 July 2002 through 10 July 2002

ER -

A fully nonlinear primary atomization model

Abstract

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