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fanning friction factor¸¦ ÄÄÇ»ÅÍ·Î ±¸ÇÏ´Â ¹æ¹ý Áú¹®ÇÕ´Ï´Ù.
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: 14-05-17 20:26
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fanning friction factor¸¦ ·¹À̳îÁî ¼ö¿Í Á¡µµ, ¹Ðµµ µîÀÇ °ªÀ» ÀÔ·ÂÇؼ ÄÄÇ»ÅÍ·Î ±¸ÇÒ ¼ö ÀÖ´Â ¹æ¹ýÀ»
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´ëºÎºÐ Á¤º¸µéÀÌ Darcy ²¨·Î ³ª¿ÍÀ־ä¤Ì¤Ì
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Stefano
14-05-19 11:23
(1) ¾Æ·¡ÀÇ Colebrook EquationÀ» ½ÃÇà¿ÀÂ÷¹ýÀ¸·Î Ç®¾î¾ß ÇÕ´Ï´Ù.
http://www.ajdesigner.com/php_colebrook/colebrook_equation.php
(f°ªÀÌ 0ÀÌ ¾Æ´Ñ ¾ç¼ö°ªÀÇ ¹üÀ§¿¡¼ ¹æÁ¤½ÄÀ» Ç®¾îº¸¼¼¿ä. ¿¢¼¿ÀÇ ¹æÁ¤½Ä Ç®±â·Î Ç®¼öµµ ÀÖ½À´Ï´Ù.)
(2)Approximate Solution¿¡ °üÇÏ¿© ¸¹Àº ¿¬±¸°¡ ÀÖ¾ú´Âµ¥
±×Áß ¸î°³ÀÇ ¹æ¹ýµéÀÌ ÀÌ°÷¿¡ ¼Ò°³µÇ¾î ÀÖ½À´Ï´Ù.
http://en.wikipedia.org/wiki/Darcy_friction_factor_formulae
(1) ¾Æ·¡ÀÇ Colebrook EquationÀ» ½ÃÇà¿ÀÂ÷¹ýÀ¸·Î Ç®¾î¾ß ÇÕ´Ï´Ù. http://www.ajdesigner.com/php_colebrook/colebrook_equation.php (f°ªÀÌ 0ÀÌ ¾Æ´Ñ ¾ç¼ö°ªÀÇ ¹üÀ§¿¡¼ ¹æÁ¤½ÄÀ» Ç®¾îº¸¼¼¿ä. ¿¢¼¿ÀÇ ¹æÁ¤½Ä Ç®±â·Î Ç®¼öµµ ÀÖ½À´Ï´Ù.) (2)Approximate Solution¿¡ °üÇÏ¿© ¸¹Àº ¿¬±¸°¡ ÀÖ¾ú´Âµ¥ ±×Áß ¸î°³ÀÇ ¹æ¹ýµéÀÌ ÀÌ°÷¿¡ ¼Ò°³µÇ¾î ÀÖ½À´Ï´Ù. http://en.wikipedia.org/wiki/Darcy_friction_factor_formulae
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