This paper presents the theoretical analysis for the flow driven by surface tension and gravity force in an inclined circular tube. The governing equation is developed to describe the displacement of a Newtonian fluid that continuously flew into a circular tube by surface tension, which represents a second-order, nonlinear, nonhomogeneous and ordinary differencial form. It was found that the theoretical predictions of the governing equation were excellent agreement with the unsteady state solutions for horizontal tube and the results of force balance equation for steady state.

Abstract
 1. 서론
 2. 이론
  2.1 속도분포
  2.2 지배방정식
 3. 지배방정식의 검증
  3.1 이론 결과와의 비교
  3.2 실험 결과와의 비교
 4. 결과 및 고찰
  4.1 정상상태 도달시간 및 변위
  4.2 전단율
 5. 결론
 후기
 참고문헌

• 모정하(원광대학교 기계자동차공학부) | Jeong-Hah Moh