Abstract
The turbulence has a significant effect on the combustion process in an internal combustion engine. It is very important to separate the gas flow in the engine cylinder to the turbulence and the mean flow. The turbulence is defined as higher-frequency components in the turbulent flow. In this study, some methods of frequency filtering for distinguishing the turbulence components in the flow were investigated. The characteristics of four kinds of frequency filtering methods, that is to say, both digital and analog filters of Butterworth types, running-averaged and stationary time-averaged methods, were compared. These methods were applied to an unsteady jet similar to the flow in the engine cylinder, and the turbulence characteristics obtained were discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 264-270 |
| Number of pages | 7 |
| Journal | Transactions of the Japan Society of Mechanical Engineers Series B |
| Volume | 58 |
| Issue number | 545 |
| DOIs | |
| Publication status | Published - 1992 |
| Externally published | Yes |
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Keywords
- Data Analysis
- Digital Filter
- Flow Measurement
- Internal Combustion Engine
- Jet
- Turbulence
- Turbulent Flow
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
Cite this
Data Analysis in Unsteady Turbulent Flow Measurement : (Preliminary Study of Data Analysis of Turbulent Flow in Engine Cylinder). / Hamamoto, Yoshisuke; Tomita, Eiji; Zhang, Zhong; Tsutsumi, Hiroyuki.
In: Transactions of the Japan Society of Mechanical Engineers Series B, Vol. 58, No. 545, 1992, p. 264-270.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Data Analysis in Unsteady Turbulent Flow Measurement
T2 - (Preliminary Study of Data Analysis of Turbulent Flow in Engine Cylinder)
AU - Hamamoto, Yoshisuke
AU - Tomita, Eiji
AU - Zhang, Zhong
AU - Tsutsumi, Hiroyuki
PY - 1992
Y1 - 1992
N2 - The turbulence has a significant effect on the combustion process in an internal combustion engine. It is very important to separate the gas flow in the engine cylinder to the turbulence and the mean flow. The turbulence is defined as higher-frequency components in the turbulent flow. In this study, some methods of frequency filtering for distinguishing the turbulence components in the flow were investigated. The characteristics of four kinds of frequency filtering methods, that is to say, both digital and analog filters of Butterworth types, running-averaged and stationary time-averaged methods, were compared. These methods were applied to an unsteady jet similar to the flow in the engine cylinder, and the turbulence characteristics obtained were discussed.
AB - The turbulence has a significant effect on the combustion process in an internal combustion engine. It is very important to separate the gas flow in the engine cylinder to the turbulence and the mean flow. The turbulence is defined as higher-frequency components in the turbulent flow. In this study, some methods of frequency filtering for distinguishing the turbulence components in the flow were investigated. The characteristics of four kinds of frequency filtering methods, that is to say, both digital and analog filters of Butterworth types, running-averaged and stationary time-averaged methods, were compared. These methods were applied to an unsteady jet similar to the flow in the engine cylinder, and the turbulence characteristics obtained were discussed.
KW - Data Analysis
KW - Digital Filter
KW - Flow Measurement
KW - Internal Combustion Engine
KW - Jet
KW - Turbulence
KW - Turbulent Flow
UR - http://www.scopus.com/inward/record.url?scp=85007687135&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85007687135&partnerID=8YFLogxK
U2 - 10.1299/kikaib.58.264
DO - 10.1299/kikaib.58.264
M3 - Article
AN - SCOPUS:85007687135
VL - 58
SP - 264
EP - 270
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 - 545
ER -