Abstract
Fuel gas injection is used for gas diesel engines. It is very important to investigate the behaviour of the unsteady jet. In this study, the concentration field of a suddenly started cold methane gas jet into still air was nonintrusively measured by the infrared absorption method with a 3.39 μm He-Ne laser. Furthermome, the equations of mass, momentum, energy, species (methane and air) and the k-ε turbulence model were solved numerically. The concentration field was obtained and compared with the experimental results. As a result, it was found that the global trends of the jet, that is to say, penetration and averaged concentration, are predicted well, though the unsteady concentration near the jet axis is not predicted because the turbulence model is based on the time-averaged one.
| Original language | English |
|---|---|
| Pages (from-to) | 2126-2131 |
| Number of pages | 6 |
| Journal | Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B |
| Volume | 58 |
| Issue number | 551 |
| DOIs | |
| Publication status | Published - 1992 |
| Externally published | Yes |
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Keywords
- Concentration
- Fuel Injection
- Gaseous Fuel
- Infrared Absorption Method
- Jet
- k-ε Model
- Laser
- Methane
- Numerical Analysis
- Unsteady Flow
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
Cite this
A Study on Concentration Field of Unsteady Gaseous Fuel Jet (Axisymmetric Turbulent Free Methane Jet). / Tomita, Eiji; Hamamoto, Yoshisuke; Nsunge, Felix Chintu; Tsunashima, Yoshinori.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 58, No. 551, 1992, p. 2126-2131.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A Study on Concentration Field of Unsteady Gaseous Fuel Jet (Axisymmetric Turbulent Free Methane Jet)
AU - Tomita, Eiji
AU - Hamamoto, Yoshisuke
AU - Nsunge, Felix Chintu
AU - Tsunashima, Yoshinori
PY - 1992
Y1 - 1992
N2 - Fuel gas injection is used for gas diesel engines. It is very important to investigate the behaviour of the unsteady jet. In this study, the concentration field of a suddenly started cold methane gas jet into still air was nonintrusively measured by the infrared absorption method with a 3.39 μm He-Ne laser. Furthermome, the equations of mass, momentum, energy, species (methane and air) and the k-ε turbulence model were solved numerically. The concentration field was obtained and compared with the experimental results. As a result, it was found that the global trends of the jet, that is to say, penetration and averaged concentration, are predicted well, though the unsteady concentration near the jet axis is not predicted because the turbulence model is based on the time-averaged one.
AB - Fuel gas injection is used for gas diesel engines. It is very important to investigate the behaviour of the unsteady jet. In this study, the concentration field of a suddenly started cold methane gas jet into still air was nonintrusively measured by the infrared absorption method with a 3.39 μm He-Ne laser. Furthermome, the equations of mass, momentum, energy, species (methane and air) and the k-ε turbulence model were solved numerically. The concentration field was obtained and compared with the experimental results. As a result, it was found that the global trends of the jet, that is to say, penetration and averaged concentration, are predicted well, though the unsteady concentration near the jet axis is not predicted because the turbulence model is based on the time-averaged one.
KW - Concentration
KW - Fuel Injection
KW - Gaseous Fuel
KW - Infrared Absorption Method
KW - Jet
KW - k-ε Model
KW - Laser
KW - Methane
KW - Numerical Analysis
KW - Unsteady Flow
UR - http://www.scopus.com/inward/record.url?scp=0348250486&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0348250486&partnerID=8YFLogxK
U2 - 10.1299/kikaib.58.2126
DO - 10.1299/kikaib.58.2126
M3 - Article
AN - SCOPUS:0348250486
VL - 58
SP - 2126
EP - 2131
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 551
ER -