Development of a One-Dimensional Combustion Model for Direct Injection Hydrogen Engines Considering Preferential Diffusion
選択拡散効果を考慮した直噴水素エンジンの１次元燃焼モデル構築
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- Publication code
- 20264534
- Paper/Info type
- JSAE Transaction
Vol.57 No.4
- Pages
- 754-760(Total 7 p)
- Date of publication
- Jul 2026
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 論文 Translation |
|---|---|
| Category(E) | Paper |
| Author(J) | 1) 三上 敬生, 2) 栗原 浩一, 3) 石井 裕司, 4) 上原 一浩, 5) 半田 英之 |
| Author(E) | 1) Toshiki Mikami, 2) Hirokazu Kurihara, 3) Yuji Ishii, 4) Kazuhiro Uehara, 5) Hideyuki Handa |
| Affiliation(J) | 1) トヨタ自動車株式会社, 2) トヨタ自動車株式会社, 3) トヨタ自動車株式会社, 4) トヨタ自動車株式会社, 5) トヨタ自動車株式会社 |
| Abstract(J) | 直噴水素エンジンの1次元燃焼モデル（GT-Power）構築方法を示す.本研究では3D-CFDと実機を使って火炎面の当量比推移を推定し,筒内混合気分布を表現する.また選択拡散効果を考慮して乱流燃焼速度の調整を行う.さらに着火遅れ時間の補正も行う.構築モデルで実機燃焼を精度よく予測できることを確認した． Translation |
| Abstract(E) | This study presents a method for constructing a one-dimensional combustion model for direct injection hydrogen engines using GT-Power. In GT-Power, the equivalence ratio at the flame front is utilized to represent the in-cylinder mixture distribution. In this research, the transition of the equivalence ratio at the flame front is determined by combining calculations from 3D-CFD with actual combustion results from a real engine. Additionally, three parameters for turbulent burning velocity are considered with respect to preferential diffusion. It was confirmed that the constructed model reproduces the combustion characteristics of the real engine well. |
