½ºÅ×Æijë´Ô,
¾Ë·ÁÁֽŴë·Î fanning factor 'f'°ªÀ» °è»êÇÒ·Á°íÇϴµ¥
trial and error·Î °è¼ÓÇÏ´Â ¹æ¹ýÀ¸·Î ¿¢¼¿ ÇØã±â¸¦ ÀÌ¿ëÇ϶ó°í Çϼ̴µ¥
Á¦°¡ ÀÌÇظ¦ Àß ¸øÇÏ°Ú½À´Ï´Ù. ¿¢¼¿¿¡¼ ±×·±±â´ÉÀ» ¾î¶»°Ô ¾²´Â°ÍÀÎÁö..
Á¶±Ý¸¸ ´õ ¼³¸íÇØÁÖ½Ã¸é °¨»çµå¸®°Ú½À´Ï´Ù.
1/(f)^0.5 = -2log[2.51/(Re*f^0.5) + ¥å/(3.7D)]
* Re, e, D = ÀԷº¯¼ö.
* f = ±¸ÇÏ°íÀÚÇÏ´Â °ª.