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Çѱ¹¼öÀÚ¿øÇÐȸ / v.31, no.5, 1998³â, pp.565-574
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´ÜÀÏ »ó¿ë°ü·ÎÀÇ °£Æí¼³°è
( Simple Design of Commericial Pipe Flow ) |
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| Colebrook(1938)ÀÌ ¼öÁýÇÑ »ó¿ë°ü¿¡ ´ëÇÑ °üÃøÀÚ·á¿¡ ÀÇÇÏ¸é »ó¿ë°üÀÇ ¸¶Âû°è¼ö ºÐÆ÷´Â °üÀÇ Á¾·ù¿Í Å©±â¿¡ µû¶ó ±× º¯À̰¡ »óÀÌÇÔÀ» ¾Ë ¼ö ÀÖ´Ù. º»°í´Â ±×ÀÇ ÀڷḦ ÀçºÐ¼®ÇÏ¿© °ü·Î¼³°Ô¿¡ Àû¿ëÀÌ ¿ëÀÌÇÑ Áö¼öÇÔ¼ö ÇüÅÂÀǸ¶Âû°è¼ö »êÁ¤½ÄÀ» µµÃâÇÏ¿´´Ù. ÀϹÝÀûÀ¸·Î ´ÜÀϰü·Î ¼³°è¿¡¼ ¿ä±¸µÇ´Â »çÇ×µéÀº ¾î¶² °ü·Î Á¶°ÇÀÌ ÁÖ¾îÁ® ÀÖÀ» ¶§ ÆßÇÁµ¿·Â ¶Ç´Â °ü³» Åë°úÀ¯·®À̳ª ÀûÁ¤°ü°æÀÇ »êÁ¤ÀÌ´Ù. ±ÕÀÏÁ¶µµ°üÀÎ °æ¿ì´Â ÀÌ¹Ì À¯µ¿ÈÆ(1995b)¿¡ ÀÇÇØ¼ ¼³°è ±âÁؽÄÀÌ Á¦½ÃµÇ¾ú°í, À¯µ¿Èưú °Âù¼ö(1996)¿¡ ÀÇÇØ¼ ´õ¿í ÀϹÝÀûÀÎ °æ¿ì¿¡ ´ëÇÑ ÇØ¼®À¸·Î ÁøÀüµÇ¾ú´Ù. ¶ÇÇÑ »ó¿ë°üÀÎ °æ¿ìµµ À¯µ¿Èưú °Âù¼ö(1997)¿¡ ÀÇÇØ¼ º¸´Ù ¿ëÀÌÇÑ ÇØ¼®¹ýÀÌ ÀÌ·ç¾îÁ³Áö¸¸ ±× ¿¬±¸°á°ú´Â º¸´Ù Á¤È®ÇÑ ÇØ¸¦ ±¸ÇÑ´Ù´Â ÀåÁ¡ÀÌ ÀÖ´Â ¹Ý¸é¿¡ »êÁ¤½ÄÀÇ ÇüŰ¡ ´Ù¼Ò º¹ÀâÇÑ ´ÜÁ¡À» ³»Æ÷Çϰí ÀÖ´Ù. ÀÌ¿¡ º»°í´Â »ó¿ë°ü¿¡ ´ëÇÏ¿© µÎ°¡Áö À¯ÇüÀÇ Áö¼öÇü °ü¸¶Âû°è¼ö »êÁ¤½ÄÀ» °³¹ßÇϰí À̵éÀ» Àû¿ëÇÏ¿© º¸´Ù °£´ÜÇÏ°Ô °ü·Î ¼³°è½Ã ¿ä±¸µÇ´Â »çÇ×µéÀ» »êÃâÇÒ ¼ö ÀÖ´Â ¾çÇØ¹ý »êÁ¤½ÄÀ» °³¹ßÇÏ¿© Á¦½ÃÇÏ¿´´Ù. |
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| The friction factor distribution of commercial pipes vary according to the pipe type and size. The present paper developed the friction factor equations of power law by analyzing the data reported by Colebrook(1938). Generally, pipe design requires pump power, discharge or pipe diameter for each condition given. Yoo(1995b) has suggested the basic equations for the explicit design of uniformly rough pipe and Yoo and Kang(1996) have refined those equations for the cases of uniformly rough pipe on a sloping bed with a pumping power. Furthermore Yoo and Kang(1997) have studied the design of commercial pipe for a general case. The approach gives relatively accurate solutions, but the equations obtained are rather complicated. In the present study two types of power law are developed for the friction factor of commercial pipe, and explicit forms of equations are generated by applying the power law friction factor equations for the simple design of commercial pipes. |
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| Ű¿öµå |
| »ó¿ë°ü;Áö¼öÇü °ü¸¶Âû°è¼ö »êÁ¤½Ä;°ü·Î ¼³°è;ÆßÇÁµ¿·Â;Åë°úÀ¯·®;commercial pipe;power law friction factor equation;pipe design;pump power;discharge; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.31, no.5, 1998³â, pp.565-574
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811920101234)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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