공학도를 위한 유체공학실험

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Ⅰ. 실험 오차 해석과 실험 자료 처리

제1장 실험 오차 해석 ··········································································································· 07

1.1 서론 ································································································································· 07

1.2 오차의 종류 ··················································································································· 07

1.3 불확실도의 추정 ··········································································································· 09

1.4 데이터의 응용 ··············································································································· 13

1.5 요약 ································································································································· 19

1.6 참고문헌 ························································································································· 19

제2장 실험 자료 처리 ··········································································································· 21

2.1 개요 ································································································································· 21

2.2 보간법과 회귀법 ··········································································································· 21

2.3 보간법 ····························································································································· 22

2.4 회귀법 ····························································································································· 23

2.5 Excel 추세선 기능을 통한 선형 회귀분석 ······························································ 25

2.5.1 회귀분석시 실험값과의 오차 고려 ······························································· 25

2.5.2 Excel의 추세선 기능을 통한 회귀분석 ······················································ 27

Ⅱ. ANSYS-CFX 사용법

제1장 전처리 작업 ················································································································· 33

1.1 처음 시작방법 ··············································································································· 33

1.2 메쉬 파일 불러오기 방법 ···························································································· 35

1.3 유동상태 설정방법 ······································································································· 36

1.4 도메인 설정방법 ··········································································································· 37

1.5 경계조건 설정방법 ········································································································ 38

1.6 수렴조건 설정방법 ········································································································ 40

1.7 저장방법 ························································································································· 41

1.8 실행방법 ························································································································· 42

제2장 후처리 작업 ················································································································· 45

2.1 처음 시작방법 ··············································································································· 45

2.2 Point 생성방법 ············································································································· 46

2.3 Streamline 생성방법 ·································································································· 47

2.4 Plane 생성 및 Contour 그리는 방법 ····································································· 49

2.5 Vector 생성방법 ·········································································································· 52

Ⅲ. 장치 실험

1. 정수압 측정 ················································································································· 57

2. 점성계수 측정 ·············································································································· 66

3. 레이놀즈 수 측정 ········································································································ 71

4. 제트충돌 실험 ·············································································································· 75

5. 유체관로의 부손실 측정 ···························································································· 79

6. 펌프성능 실험 ·············································································································· 97

7. 외부유동 실험 ·············································································································· 99

8. 펌프의 연합운전 실험 ······························································································ 109

※ 각 실험 앞장에 인쇄된 QR코드를 휴대폰으로 촬영인식하면 youtube에서 실험관련 동영상을 볼 수 있다.

부록

부록 A. 보고서 양식 ·································································································· 117

부록 B. 유체성질에 대한 자료 ················································································ 121

B. 1 비중 ············································································································ 121

B. 2 표면장력 ····································································································· 125

B. 3 점도의 물리적 본질 ················································································· 126

B. 4 윤활유 ········································································································· 131

참고문헌 ························································································································· 139