Improving the calculation of evaporating sprays for medium-speed marine-engine-like conditions
Li, Haohan ; Beji, Tarek and Verhelst, Sebastian LU
(2021)
In Atomization and Sprays
31(8).
p.55-79
- Abstract
In order to reduce maritime transportation's greenhouse gas and pollutant emissions, marine engine manufacturers need to deepen the fundamental understanding of the injection and spray process. Two-dimensional unsteady-state Reynolds-averaged Navier-Stokes simulations were conducted to investigate evaporating high-pressure marine engine sprays, in which an injector with a nozzle diameter of 0.44 mm was used. The proposed approach was first validated using measurement data of Spray A and Spray D from the Engine Combustion Network. A satisfactory agreement with the Engine Combustion Network data demonstrated that the simulation can correctly capture the spray processes. However, a discrepancy was observed when simulating the marine engine... (More)
In order to reduce maritime transportation's greenhouse gas and pollutant emissions, marine engine manufacturers need to deepen the fundamental understanding of the injection and spray process. Two-dimensional unsteady-state Reynolds-averaged Navier-Stokes simulations were conducted to investigate evaporating high-pressure marine engine sprays, in which an injector with a nozzle diameter of 0.44 mm was used. The proposed approach was first validated using measurement data of Spray A and Spray D from the Engine Combustion Network. A satisfactory agreement with the Engine Combustion Network data demonstrated that the simulation can correctly capture the spray processes. However, a discrepancy was observed when simulating the marine engine sprays. After summarizing and analyzing the values of the turbulence model constant (C1 of the standard Κ-ϵ model) used from the published literature, a lower value of C1 was adopted, and good agreement under a wide range of ambient conditions (density varying from 7.6 to 22.5 kg/cu m, and temperature varying from 700 K to 950 K) was achieved. Also, the disagreement observed for the liquid penetration for a low-temperature case could be attributed to the ligament detachment phenomenon which was captured by the computational fluid dynamics simulation.
(Less)
- author
- Li, Haohan
; Beji, Tarek
and Verhelst, Sebastian
LU
- organization
- publishing date
- 2021
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Diesel spray, Marine engine, Numerical simulation, Turbulence effect
- in
- Atomization and Sprays
- volume
- 31
- issue
- 8
- pages
- 25 pages
- publisher
- Begell House
- external identifiers
-
- scopus:85114803855
- ISSN
- 1044-5110
- DOI
- 10.1615/ATOMIZSPR.2021037736
- language
- English
- LU publication?
- yes
- id
- 347278ba-fb11-4adc-ac52-d4ef74edce0a
- date added to LUP
- 2021-10-12 14:50:55
- date last changed
- 2022-04-27 04:43:09
@article{347278ba-fb11-4adc-ac52-d4ef74edce0a,
abstract = {{<p>In order to reduce maritime transportation's greenhouse gas and pollutant emissions, marine engine manufacturers need to deepen the fundamental understanding of the injection and spray process. Two-dimensional unsteady-state Reynolds-averaged Navier-Stokes simulations were conducted to investigate evaporating high-pressure marine engine sprays, in which an injector with a nozzle diameter of 0.44 mm was used. The proposed approach was first validated using measurement data of Spray A and Spray D from the Engine Combustion Network. A satisfactory agreement with the Engine Combustion Network data demonstrated that the simulation can correctly capture the spray processes. However, a discrepancy was observed when simulating the marine engine sprays. After summarizing and analyzing the values of the turbulence model constant (C1 of the standard Κ-ϵ model) used from the published literature, a lower value of C1 was adopted, and good agreement under a wide range of ambient conditions (density varying from 7.6 to 22.5 kg/cu m, and temperature varying from 700 K to 950 K) was achieved. Also, the disagreement observed for the liquid penetration for a low-temperature case could be attributed to the ligament detachment phenomenon which was captured by the computational fluid dynamics simulation.</p>}},
author = {{Li, Haohan and Beji, Tarek and Verhelst, Sebastian}},
issn = {{1044-5110}},
keywords = {{Diesel spray; Marine engine; Numerical simulation; Turbulence effect}},
language = {{eng}},
number = {{8}},
pages = {{55--79}},
publisher = {{Begell House}},
series = {{Atomization and Sprays}},
title = {{Improving the calculation of evaporating sprays for medium-speed marine-engine-like conditions}},
url = {{http://dx.doi.org/10.1615/ATOMIZSPR.2021037736}},
doi = {{10.1615/ATOMIZSPR.2021037736}},
volume = {{31}},
year = {{2021}},
}