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Moody (1947) Churchill (1973) Chen (1979) Round (1980) Haaland (1983) Manadilli (1997) ¡ªnµ‡nµ‡ªµ¤—´œ
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Áž¨¸É¥œÂž¨Š ¹Êœ°¥¼n„´°´˜¦µ„µ¦Å®¨ °Šµ¦šÎµŠµœ Á¤ºÉ°‡nµ Reynolds number Á¡·É ¤ ¹Êœ¡ªnµ‡nµ‡ªµ¤—´œ¼Á¸¥¤¸‡nµ
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®o °Šž’·´˜·„µ¦ Thermal-Fluids Lab (TFL) µ µª· µ¢d · „r ‡–³ª· š¥µ«µ˜¦r ¤®µª·š¥µ¨´ ¥š´„¬·– š¸É Ä®o‡ªµ¤
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Á°„µ¦°oµŠ°·Š
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M.L. Moody (1947), An approximate formula for pipe friction factors, Trans.ASME 69 1005.
S.W. Churchill (1973), Empirical expressions for the shear stress in turbulent flow in commercial pipe, AIChE J.
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N.H. Chen (1979), An explicit equation for friction factor in pipe, Ind. Eng.Chem. Fundam. 18 (3) 296.
G.F. Round (1980), An explicit approximation for the friction-factorReynolds number relation for rough and
Smooth pipes, Can. J. Chem.Eng. 58 (1) 122.
S.E. Haaland (1983), Simple and explicit formulas for the frictionfactorin turbulent pipe flow, Trans. ASME, JFE
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