CAJ | 학술논문

为研究酸化油生物柴油作为车用柴油机代用燃料的可行性，对高压容器内酸化油生物柴油的碰壁现象进行了试验研究，分析了碰壁距离和碰壁角度对酸化油生物柴油碰壁过程的影响。试验结果表明：酸化油生物柴油碰壁后油束形态与柴油相似，与柴油相比，酸化油生物柴油的扩散直径和卷吸高度略大；随碰壁入射角的增大，酸化油生物柴油雾注上游半径减小，下游半径增大，卷吸高度变化不大，近壁区油气卷吸运动加强；随着碰壁距离的增加，酸化油生物柴油喷雾体的扩散直径和卷吸高度有所减小，近壁区油气卷吸运动减弱。
위연구산화유생물시유작위차용시유궤대용연료적가행성，대고압용기내산화유생물시유적팽벽현상진행료시험연구，분석료팽벽거리화팽벽각도대산화유생물시유팽벽과정적영향。시험결과표명：산화유생물시유팽벽후유속형태여시유상사，여시유상비，산화유생물시유적확산직경화권흡고도략대；수팽벽입사각적증대，산화유생물시유무주상유반경감소，하유반경증대，권흡고도변화불대，근벽구유기권흡운동가강；수착팽벽거리적증가，산화유생물시유분무체적확산직경화권흡고도유소감소，근벽구유기권흡운동감약。
In order to study the feasibility of using acidic oil biodiesel as the alternative fuel for vehicle diesel engine ,the im‐pingement phenomenon in high pressure vessel was researched and the influences of impingement distance and angle on impinge‐ment process were analyzed .The results show that the fuel beam of acidic oil biodiesel has the same shape as that of diesel after impingement .Compared with diesel ,the diffusion diameter and entrainment height of acidic oil biodiesel are slightly larger . With the increase of impingement incidence angle ,the radius of spray upstream and downstream for the acidic oil biodiesel de‐crease and increase respectively and the mixture entrainment near the wall strengthened with little change of entrainment height .With the increase of impingement distance ,the spray diffusion diameter and entrainment height decrease and the mix‐ture entrainment near the wall weakens .