Modelling spray impingement using linear stability theories for droplet shattering

S. S. Yoon; P. E. DesJardin

doi:10.1002/fld.1069

Modelling spray impingement using linear stability theories for droplet shattering

S. S. Yoon^*
, P. E. DesJardin

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

This paper compares several linear-theory-based models for droplet shattering employed for simulations of spray impingement on flat wall surface or a circular cylinder. Numerical simulations are conducted using a stochastic separated flow (SSF) technique that includes sub-models for droplet dynamics and impact. Results for spray impingement over a flat wall indicate that the linear theory applicable for a single droplet impact over-predicts the number of satellite (or secondary) droplets upon shattering when compared to experimental data. The causes for the observed discrepancies are discussed. Numerical simulation results for spray impingement over a circular cylinder in cross flow are obtained and discussed.

Original language	English
Pages (from-to)	469-489
Number of pages	21
Journal	International Journal for Numerical Methods in Fluids
Volume	50
Issue number	4
DOIs	https://doi.org/10.1002/fld.1069
Publication status	Published - 2006 Feb 10

Keywords

Distribution
Droplet
Finger
Impact
Linear theories
Satellite
Seconday instability
Shattering
Splashing
Spray

ASJC Scopus subject areas

Computational Mechanics
Mechanics of Materials
Mechanical Engineering
Computer Science Applications
Applied Mathematics

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10.1002/fld.1069

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title = "Modelling spray impingement using linear stability theories for droplet shattering",

abstract = "This paper compares several linear-theory-based models for droplet shattering employed for simulations of spray impingement on flat wall surface or a circular cylinder. Numerical simulations are conducted using a stochastic separated flow (SSF) technique that includes sub-models for droplet dynamics and impact. Results for spray impingement over a flat wall indicate that the linear theory applicable for a single droplet impact over-predicts the number of satellite (or secondary) droplets upon shattering when compared to experimental data. The causes for the observed discrepancies are discussed. Numerical simulation results for spray impingement over a circular cylinder in cross flow are obtained and discussed.",

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author = "Yoon, \{S. S.\} and DesJardin, \{P. E.\}",

year = "2006",

month = feb,

day = "10",

doi = "10.1002/fld.1069",

language = "English",

volume = "50",

pages = "469--489",

journal = "International Journal for Numerical Methods in Fluids",

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TY - JOUR

T1 - Modelling spray impingement using linear stability theories for droplet shattering

AU - Yoon, S. S.

AU - DesJardin, P. E.

PY - 2006/2/10

Y1 - 2006/2/10

N2 - This paper compares several linear-theory-based models for droplet shattering employed for simulations of spray impingement on flat wall surface or a circular cylinder. Numerical simulations are conducted using a stochastic separated flow (SSF) technique that includes sub-models for droplet dynamics and impact. Results for spray impingement over a flat wall indicate that the linear theory applicable for a single droplet impact over-predicts the number of satellite (or secondary) droplets upon shattering when compared to experimental data. The causes for the observed discrepancies are discussed. Numerical simulation results for spray impingement over a circular cylinder in cross flow are obtained and discussed.

AB - This paper compares several linear-theory-based models for droplet shattering employed for simulations of spray impingement on flat wall surface or a circular cylinder. Numerical simulations are conducted using a stochastic separated flow (SSF) technique that includes sub-models for droplet dynamics and impact. Results for spray impingement over a flat wall indicate that the linear theory applicable for a single droplet impact over-predicts the number of satellite (or secondary) droplets upon shattering when compared to experimental data. The causes for the observed discrepancies are discussed. Numerical simulation results for spray impingement over a circular cylinder in cross flow are obtained and discussed.

KW - Distribution

KW - Droplet

KW - Finger

KW - Impact

KW - Linear theories

KW - Satellite

KW - Seconday instability

KW - Shattering

KW - Splashing

KW - Spray

UR - https://www.scopus.com/pages/publications/31544474330

U2 - 10.1002/fld.1069

DO - 10.1002/fld.1069

M3 - Article

AN - SCOPUS:31544474330

SN - 0271-2091

VL - 50

SP - 469

EP - 489

JO - International Journal for Numerical Methods in Fluids

JF - International Journal for Numerical Methods in Fluids

IS - 4

ER -

Modelling spray impingement using linear stability theories for droplet shattering

Abstract

Keywords

ASJC Scopus subject areas

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