유체기계공업학회:학술대회논문집
- 유체기계공업학회 2002년도 유체기계 연구개발 발표회 논문집
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- Pages.465-470
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- 2002
임의로 거칠게한 표면의 점성 마찰특성
Characteristics of Friction Factor for Artificially Roughened Surfaces
초록
For measuring friction-factor of artificially-roughened surfaces which are usually applied on damper seals, flat plate test apparatus is designed and fabricated. the measurement of leakage and pressure distribution through round-hole pattern specimen with different hole area is described and a method is discussed for determining the friction-factor experimentally. Results show that the friction-factor of the round-hole pattern surfaces is bigger than that of smooth surface and increases as increasing the hole area. A empirical friction factor model for round-hole pattern surface is defined as the Moody's friction factor formula.
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