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Çѱ¹¼öÀÚ¿øÇÐȸ / v.29, no.6, 1996³â, pp.225-235
Í­Ó«ãÒåàÔ³¿¡¼­ ̰Ûú û¡ßÒ¿¡ µû¸¥ â©×âùÊîÜ ÷åàõ ¹× åà×¾ÀÇ ß¾×µì¹ÔÑ
( Hydraulic Characteristics and Upstream Migration of Fish by the Weir Type in a Pool-Weir Fishway )
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º» ¿¬±¸¿¡¼­´Â °è´Ü½Ä¾îµµÀÇ °Ýº® Çü»ó¿¡ µû¸¥ ¼ö¸®ÇÐÀû Ư¼º°ú ¾î·ùÀÇ »ó·ùÀ̵¿¿¡ ¹ÌÄ¡´Â È¿°ú¸¦ ´Ù·ç°í ÀÖÀ¸¸ç, »ó·ùÀ̵¿ÀÌ ¿ëÀÌÇϵµ·Ï °Ýº®ÀÇ ÀûÁ¤ ÇüŸ¦ Á¦½ÃÇÏ´Â °ÍÀ¸·Î ÇÏ¿´´Ù. °Ýº® Çü»ó¿¡ µû¸¥ ¼ö¸®ÇÐÀû Ư¼ºÀ» Á¶»çÇϰí ÀûÁ¤ ÇüŸ¦ °áÁ¤Çϱâ À§ÇØ ¼ö¸®½ÇÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ½ÇÇè°á°ú zig-zag ÇüÅ·Π¼³Ä¡µÈ ÀÛÀº notch¸¦ °¡Áø Á÷»ç°¢Çü °Ýº®ÀÌ notch°¡ ¾ø´Â ´Ü¼ø Á÷»ç°¢Çü °Ýº®À̳ª »ç´Ù¸®²Ã ÇüÅÂÀÇ °Ýº®º¸´Ù ÁÁÀº °ÍÀ̸çÀÌ ¹àÇôÁ³´Âµ¥, ÀÌ´Â ¼öÀ§ ÀúÇϽÿ¡µµ ¾î·ùÀÇ »ó·ùÀ̵¿ÀÌ °¡´ÉÇÏ°í ´õ¿ì±â »ó·ùÀ̵¿À» ¿ëÀÌÇÏ°Ô ÇÏ´Â notch¸¦ ÅëÇÑ ³«ÇÏ È帧À» Çü¼ºÇϱ⠶§¹®ÀÎ °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. Notch´Â ¿ù·ù ÃÖ´ëÀ¯¼ÓÀÌ ¾î·ùÀÇ À¯¿µÇѰèÀ¯¼ÓÀ» ³ÑÁö ¾Ê´Â ¹üÀ§ ³»¿¡¼­ Ç¥¸é·ù¸¦ Áö¼ÓÇϵµ·Ï, Áï ¹«Â÷¿øÀ¯·® °ªÀÌ 0.27°ú 0.41 ¹üÀ§ ³»¿¡ µéµµ·Ï ¼³°èÇÏ´Â °ÍÀÌ ¹Ù¶÷Á÷ÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
This study deals with hydraulic characteristics and their effects on upstream migration of fish by the weir type in a pool-weir fishway, and presents an optimal type of weir for an easy upstream migration. Experiment was performed to estimate hydraulic conditions by the weir type and to determine which type was good. The results showed that a rectangular weir with a small rectangular notch installed by a zig-zag type was preferable to a simple weir with no notch or to a trapezoidal weir, since it makes possible for upstream migration even when a water level draws down and moreover, it makes falling flow through a notch which facilitates upstream migration. It was proposed that the notch must be designed that the flow situation may keep the streaming flow so long as the maximum flow velocity does not exceed the critical swiming velocity, i.e., the dimensionless flow rate may exist whthin the range of 0.27 and 0.41.
 
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.29, no.6, 1996³â, pp.225-235
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611920098165)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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