직사각형 맨홀의 내부형상변화에 따른 흐름특성 분석

• 영문명: An Analysis of Flow Characteristics with Changing the Inside Shapes in Square Manhole
• 발행기관: 한국방재학회
• 저자명: 장석진 윤영노 김정수 윤세의 Jang, Suk-Jin Yoon, Young-Noh Kim, Jung-Soo Yoon, Sei-Eui
• 간행물 정보: 『3. 한국방재학회 학술대회논문집』2007년, 199~202쪽, 전체 4쪽
• 주제분류: 공학 > 기타공학
• 파일형태: PDF
• 발행일자: 2007.02.22

영문 초록

In storm sewer networks a lot of manholes are installed to maintain and connect a sewer of urban area. There are some shapes of manhole such as circular type, square type, and so on. Square shape manholes are installed to connect the large diameter drainage pipes in general and have lager head losses than circular one. Consequently, it is important to analyze the head losses in square manhole because the head losses in square manhole are much bigger than the friction losses in pipes. Hydraulic experimental apparatus which can be changed the inside shape in square manhole was installed for this study. The experimental discharge was $16{\ell}/sec$. The head loss coefficients in the manhole were calculated by the experimental results. The range of head loss coefficients in the general square manhole were from 0.33 to 0.48 and the range of head loss coefficients in the square manhole changed inside shape were from 0.23 to 0.28.

키워드

Square manhole Head loss coefficient Storm sewer networks