| 학회 |
한국화학공학회 |
| 학술대회 |
2004년 가을 (10/29 ~ 10/30, 호서대학교(아산캠퍼스)) |
| 권호 |
10권 2호, p.2013 |
| 발표분야 |
이동현상 |
| 제목 |
Evaluation of Rule of thumbs to predict gas flow directions in gas assisted injection molding |
| 초록 |
The rule of thumb containing an approximated flow model by perturbation technique was introduced to show, in qualitative way, whether the resistence of the relatively thick cavity of two square plates may affect the gas direction in GAIM under the fore-said geometry. The results of simulation were compared with the results of rule of thumb (RT1) containing the approximated flow model as well as those of another rule of thumb (RT2) without the resistence of the relatively thick cavity of two square plates. The results of simulations were generally consistent with the former in qualitative way to determine gas directions in gas assisted injection molding even though a relatively large value of 0.36 was applied as the value of ε to describe a relatively thick cavity of two square plates. In addition the situation was treated when cavities of pipes and runners were involved in configuration. The rule of thumb was used for the ratio of initial velocities to be recalculated at the first coming change of diameters when the ratio was close to unity and it was quite consistent to the results of simulation. |
| 저자 |
임광희, 홍수현
|
| 소속 |
대구대 |
| 키워드 |
Rule of thumb; gas flow directions; gas assisted injection molding
|
| E-Mail |
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| 원문파일 |
초록 보기 |
