메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

논문 기본 정보

자료유형
학술대회자료
저자정보
이동호 (연세대학교) 남용우 (연세대학교) 조형희 (연세대학교)
저널정보
대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2003년도 에너지 및 동력공학부문 추계학술강연/논문집
발행연도
2003.11
수록면
43 - 51 (9page)

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

이 논문의 연구 히스토리 (4)

초록· 키워드

오류제보하기
The present study is conducted to investigate the effect of rib arrangements on an impingement/effusion cooling system with crossflow. To simulate the impingement/effusion cooling system, two perforated plates are placed in parallel and staggered arrangements with a gap distance of 2 times of the hole diameter. Initial crossflow passes between the injection and effusion plates, and square ribs (3㎜) are installed on the effusion plate. Both the injection and effusion hole diameters are 10 ㎜, and the flow rate of crossflov is fixed to that of the impinging jet. The Reynolds number based on the hole diameter and hole-to-hole pitch are fixed to 10,000 and 6 times of the hole diameter, respectively. To investigate the effects of rib arrangements, various rib arrangements, such as 90°transverse and 45°angled rib arrangements, are used. Three 90°rib arrangements and two 45°rib arrangements, which are accomplished by changing the position and the pitch of rib or the attack angle relative to the effusion hole. With the initial crossflow, the flow and heat/mass transfer characteristics are changed significantly from the results without the crossflow. The locally low transfer regions are formed because the wall jets are swept away. When the ribs are installed on the effusion plate, the locally low transfer regions are reduced or disappear, and uniform heat transfer coefficient distributions are obtained because the ribs prevent the wall jets from being swept away by the crossflow and increase local turbulence of the flow near the surface. Average heat transfer coefficients with rib turbulators are approximately 10% higher than that without ribs, and the higher values are obtained with small pitch of ribs.

목차

Abstract
1. 서론
2. 실험 장치 및 방법
3. 결과 및 고찰
4. 결론
후기
참고문헌

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

이 논문과 함께 이용한 논문

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2010-550-003145284