In this study, 3 kinds of motorbike models in common use are studied by flow analysis. The maximum velocity becomes 20 to 21 m/s at the upper part of models and the maximum air pressure resistances becomes 202 to 229 Pa at the front of models. Model 3 becomes the most uniform flow and model 1 becomes the most nonuniform flow among 3 models. In case of outlet planes on flow models, model 3 has the smallest velocity as maximum velocity of 17.49 m/s among 3 models. Model 3 has also the smallest velocity in case of middle planes on flow models. As model 3 has the most uniform air flow stream and the least air resistance than model 1 or 2, it can be thought to cut down on the power consumption.

Abstract
 1. 서론
 2. 본론
  2.1 연구 모델
  2.2 지배방정식 및 난류모델
  2.3 해석 결과
 3. 결론
 참고문헌

• 조재웅(공주대학교 기계자동차공학부) | Jae-Ung Cho