[예비 / 결과레포트] 레이놀즈 넘버 실험

소개글

화학공학 실험 중 `레이놀즈 넘버 측정 실험` 예비 / 결과레포트입니다. 자세한 실험 결과를 토대로 책에 나와있는 각종 문제를 상세한 설명과 함께 풀이하였습니다. 한 문제도 빠트리지 않고 정확한 데이터와 함께 문제를 풀었습니다. 이 레포트만 있다면 `레이놀즈 넘버 측정 실험` 예비 및 결과 레포트는 완벽하게 작성할 것입니다. 또한, 레포트의 마지막에 토의 내용도 있기 때문에 레포트 작성이 더욱 수월할 것이라 생각됩니다.

목차

1. Objective

2. Theory

3. Apparatus

4. Chemistry

5. Procedure

6. Attention

7. Results

8. Discussion

9. Reference

본문내용

As you can see Figure 1.8, the shear stress produces a velocity gradient du/dy which is proportional to the applied stress. The constant of proportionality is the coefficient of viscosity.

The above equation represents a model of a situation in which layers of fluid move smoothly over one another. This is termed "viscous" or "laminar" flow. The equation is valid and μ is a constant for a given fluid at a given temperature.

✔ Introduction of Reynolds number
1. For flow rates that are low (in a sense to be defined shortly), the pressure gradient is directly proportional to the flow rate. (Laminar zone)
2. For intermediate flow rates, the results are irreproducible, and alternate seemingly randomly between extensions of regimes 1 and 3. (Transition zone)
3. For high flow rates, the pressure gradient is closely proportional to the square of the flow rate. (Tubulent zone)

참고 자료

- Fluid Mechanics for Chemical Engineers, Second edition, by James O.Wilkes
- Chemical Engineering Laboratory Ⅱ, SungKyunKwan Univ. chemical Engineering.
- http://www.grc.nasa.gov/WWW/BGH/reynolds.html
- http://galileo.phys.virginia.edu/classes/311/notes/fluids2/node4.html
- http://video.google.com/videoplay?docid=1827702182265329855#