한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)
- 제8권3호
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- Pages.18-27
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- 2000
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- 1225-6382(pISSN)
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- 2234-0149(eISSN)
분사 노즐 분공경에 따른 디젤 엔진 연소실내 분무 거동에 관한 연구
A Study on Spray Behaviors with Variation of Nozzle Diameter in the Diesel Combustion Chamber
초록
The spray models incorporated into the GTT code were tested for free spray, spray in swirling flows and the sprays impinging on a flat wall. And the validity of the models has been confirmed by comparing the calculated results with the experimental data. Using this code, the spray behavior in the diesel combustion chamber have been numerically analyzed for variation of nozzle diameter. Also, the effects of nozzle diameter in diesel combustion was investigated experimentally by measuring the performance in a D.I engine. This study provides the information for the spray characteristics and emissions with variation of nozzle diameter. As a result, it has shown that decreasing nozzle diameter resulted in improving smoke and specific fuel consumption in a middle speed range.
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