cavitation;
damage;
computer-aided image processing;
single hydrofoil;
pit-count method;
D O I:
10.1016/j.wear.2004.08.004
中图分类号:
TH [机械、仪表工业];
学科分类号:
0802 ;
摘要:
A study of visual and erosion effects of cavitation on simple single hydrofoil configurations in a cavitation tunnel was made. A two-dimensional hydrofoil with circular leading edge was used for the experiments. In addition, the hydrofoil geometry was modified to obtain some three-dimensional cavitation effects. A thin copper foil, applied to the surface of the hydrofoil, was used as an erosion sensor. Cavitation phenomenon above hydrofoils at different flow conditions (system pressure, water gas content) was observed. Images of vapour cavities from above and from side view were taken. A statistical evaluation of cavitation structures was made. Images of damaged copper coated hydrofoil surface were taken under sufficient magnification. A pit-count method, based on computer-aided image processing, was used for direct measurement of the cavitation erosion by evaluating the damage of the surface of the hydrofoil. A relation between characteristics of cavitation structures and cavitation damage was established. (C) 2004 Elsevier B.V. All rights reserved.
机构:
Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Univ Michigan, Med Sch, Ann Arbor, MI 48109 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Mancia, Lauren
Vlaisavljevich, Eli
论文数: 0引用数: 0
h-index: 0
机构:
Virginia Polytech Inst & State Univ, Dept Biomed Engn & Mech, Blacksburg, VA 24061 USA
Virginia Polytech Inst & State Univ, Inst Crit Technol & Appl Sci, Ctr Engn Hlth, Blacksburg, VA 24061 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Vlaisavljevich, Eli
Yousefi, Nyousha
论文数: 0引用数: 0
h-index: 0
机构:
Univ Michigan, Med Sch, Ann Arbor, MI 48109 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Yousefi, Nyousha
Rodriguez, Mauro
论文数: 0引用数: 0
h-index: 0
机构:
CALTECH, Div Engn & Appl Sci, Pasadena, CA 91125 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Rodriguez, Mauro
Ziemlewicz, Timothy J.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Radiol, Sch Med & Publ Hlth, Madison, WI 53706 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Ziemlewicz, Timothy J.
Lee, Fred T.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Radiol, Sch Med & Publ Hlth, Madison, WI 53706 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Lee, Fred T.
Henann, David
论文数: 0引用数: 0
h-index: 0
机构:
Brown Univ, Sch Engn, Providence, RI 02912 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Henann, David
Franck, Christian
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Mech Engn, Madison, WI 53706 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Franck, Christian
Xu, Zhen
论文数: 0引用数: 0
h-index: 0
机构:
Univ Michigan, Dept Biomed Engn, Ann Arbor, MI 48109 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Xu, Zhen
Johnsen, Eric
论文数: 0引用数: 0
h-index: 0
机构:
Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
机构:
Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Univ Michigan, Med Sch, Ann Arbor, MI 48109 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Mancia, Lauren
Vlaisavljevich, Eli
论文数: 0引用数: 0
h-index: 0
机构:
Virginia Polytech Inst & State Univ, Dept Biomed Engn & Mech, Blacksburg, VA 24061 USA
Virginia Polytech Inst & State Univ, Inst Crit Technol & Appl Sci, Ctr Engn Hlth, Blacksburg, VA 24061 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Vlaisavljevich, Eli
Yousefi, Nyousha
论文数: 0引用数: 0
h-index: 0
机构:
Univ Michigan, Med Sch, Ann Arbor, MI 48109 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Yousefi, Nyousha
Rodriguez, Mauro
论文数: 0引用数: 0
h-index: 0
机构:
CALTECH, Div Engn & Appl Sci, Pasadena, CA 91125 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Rodriguez, Mauro
Ziemlewicz, Timothy J.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Radiol, Sch Med & Publ Hlth, Madison, WI 53706 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Ziemlewicz, Timothy J.
Lee, Fred T.
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Radiol, Sch Med & Publ Hlth, Madison, WI 53706 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Lee, Fred T.
Henann, David
论文数: 0引用数: 0
h-index: 0
机构:
Brown Univ, Sch Engn, Providence, RI 02912 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Henann, David
Franck, Christian
论文数: 0引用数: 0
h-index: 0
机构:
Univ Wisconsin, Dept Mech Engn, Madison, WI 53706 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Franck, Christian
Xu, Zhen
论文数: 0引用数: 0
h-index: 0
机构:
Univ Michigan, Dept Biomed Engn, Ann Arbor, MI 48109 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA
Xu, Zhen
Johnsen, Eric
论文数: 0引用数: 0
h-index: 0
机构:
Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USAUniv Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA