Validation of On-board In-cylinder Gas Flow Model and Wall Heat Transfer Prediction Model Using PIV Measurement in CI Engine
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- Ichiyanagi Mitsuhisa
- 上智大学
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- Sawamura Yuji
- 上智大学大学院
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- Goto Daiki
- 上智大学大学院
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- Kojima Kazuki
- 上智大学大学院
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- Matsui Hiroki
- 上智大学大学院
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- Chen Haoyu
- 上智大学大学院
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- Suzuki Takashi
- 上智大学
Bibliographic Information
- Other Title
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- ディーゼル機関におけるPIV 測定によるオンボード用ガス流動モデル および壁面熱伝達モデルの検証
- ディーゼル キカン ニ オケル PIV ソクテイ ニ ヨル オンボードヨウ ガス リュウドウ モデル オヨビ ヘキメン ネツ デンタツ モデル ノ ケンショウ
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Description
For the improvement of transient driving performance of diesel engine, it is effective to control the fuel injection timing and quantity using model-based control (MBC) on ECU (on-board) with cycle-by-cycle calculation. The authors previously developed an on-board in-cylinder gas flow model and wall heat transfer prediction model those are a part of models for MBC. This study measured in-cylinder gas flow velocity using the PIV measurement and the CFD analysis to obtain the turbulence intensity coefficients of in-cylinder gas flow expressed by the ratio between mainstream velocity and fluctuating vertical velocity towards in-cylinder wall. As a result, it was found that the turbulence intensity coefficients at intake and compression strokes obtained by the PIV measurement were 0.014 and 0.018, respectively, which were smaller than the coefficient of 0.041 from the CFD results. Compared with the heat flux measurements, the prediction errors of wall heat fluxes using the CFD’s and the PIV’s coefficients were evaluated to be 45.0% and 0.28%, respectively. These suggest the necessary to improve the determination of turbulence intensity coefficient.
Journal
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- Transactions of Society of Automotive Engineers of Japan
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Transactions of Society of Automotive Engineers of Japan 50 (3), 666-672, 2019
Society of Automotive Engineers of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390564238092317952
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- NII Article ID
- 130007652649
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- NII Book ID
- AN00105913
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- ISSN
- 24339652
- 18830811
- 02878321
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- NDL BIB ID
- 029698700
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed