¶óÆæÆ®¦¢Ä«Æä¦¢ºí·Î±×¦¢´õº¸±â
¾ÆÄ«µ¥¹Ì Ȩ ¸í»çƯ°­ ´ëÇבּ¸½Ç޹æ Á¶°æ½Ç¹« µ¿¿µ»ó°­ÀÇ Çѱ¹ÀÇ ÀüÅëÁ¤¿ø ÇÐȸº° ³í¹®
ÇÐȸº° ³í¹®

Çѱ¹°Ç¼³°ü¸®ÇÐȸ
Çѱ¹°ÇÃà½Ã°øÇÐȸ
Çѱ¹µµ·ÎÇÐȸ
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
Çѱ¹»ýÅÂÇÐȸ
Çѱ¹¼öÀÚ¿øÇÐȸ
Çѱ¹½Ä¹°ÇÐȸ
Çѱ¹½Ç³»µðÀÚÀÎÇÐȸ
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
Çѱ¹ÀܵðÇÐȸ
Çѱ¹Á¶°æÇÐȸ
Çѱ¹Áö¹Ý°øÇÐȸ
Çѱ¹ÇÏõȣ¼öÇÐȸ
Çѱ¹È¯°æ»ý¹°ÇÐȸ
Çѱ¹È¯°æ»ýÅÂÇÐȸ

Çѱ¹¼öÀÚ¿øÇÐȸ / v.39, no.4, 2006³â, pp.313-320
´ÜÀϼöÁ¦ ¼³Ä¡¿¡ µû¸¥ È帧Á߽ɼ±°ú È帧ºÐ¸®¿µ¿ªÀÇ º¯È­
( Variations of Flow Thalweg Alignment and Separation Region around a Groyne )
¿©È«±¸;³ë¿µ½Å;°­Áر¸;±è¼ºÁß; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿ø¿¬±¸ºÎ;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿ø ¿¬±¸ºÎ;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿ø¿¬±¸ºÎ;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿ø¿¬±¸ºÎ;
 
ÃÊ ·Ï
º» ¿¬±¸¿¡¼­´Â ¼ö¸®½ÇÇèÀ» ÅëÇØ ´ÜÀÏ µ¹Ãâ¼öÁ¦ ¼³Ä¡¿¡ µû¸¥ È帧Á߽ɼ±°ú ¼öÁ¦ ÇÏ·ùºÎÀÇ È帧ºÐ¸®¿µ¿ªÀÇ Æ¯¼ºÀ» ÆÄ¾ÇÇÏ¿´´Ù. È帧Á߽ɼ±Àº ÃÖ´ëÀ¯¼ÓÀÌ ¹ß»ýµÇ´Â À¯¼±À» ÀǹÌÇϸç, ¼öÁ¦ ¼³Ä¡·Î ÀÎÇÑ ¼öÁ¦ ¼±´ÜºÎ È帧ºÐ¸®Çö»óÀº È帧Á߽ɼ±ÀÇ ÇüŸ¦ º¯È­½ÃŲ´Ù. º» ¿¬±¸¿¡¼­´Â ¼ö¸®½ÇÇèÀ» ÅëÇØ ´ÜÀÏ µ¹Ãâ¼öÁ¦ÀÇ ±æÀÌ ¹× Åõ°úÀ² º¯È­¿¡ µû¸¥ ¼öÁ¦ÁÖº¯ÀÇ È帧ÀåÀ» LSPIV(Large Scale Particle Image Velocimetry)¸¦ ÀÌ¿ëÇÏ¿© ÃøÁ¤Çϰí, ¼öÁ¦±æÀÌ ¹× Åõ°úÀ²¿¡ µû¸¥ È帧 Á߽ɼ±°ú È帧ºÐ¸® ¿µ¿ªÀÇ Æ¯¼ºÀ» ÆÄ¾ÇÇÏ¿´´Ù. ½ÇÇè°á°ú, È帧Áß¾Ó¼±°ú È帧ºÐ¸®¿µ¿ªÀÇ ÆøÀº Froude ¼ö¿¡ µû¶ó Å« º¯È­¸¦ º¸ÀÌÁö ¾ÊÀ¸³ª ¼öÁ¦ÀÇ ±æÀÌ ¹× Åõ°úÀ²¿¡ µû¶ó ¼ö·Î ÆøÀÇ ÃÖ´ë 75%, 50%¿¡ À̸£´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ ¼öÁ¦¼³Ä¡·Î ÀÎÇÑ È帧Á߽ɼ±ÀÇ À¯¼Óº¯È­´Â ¼öÁ¦±æÀ̰¡ Áõ°¡ÇÔ¿¡ µû¶ó Æò±ÕÀ¯¼ÓÀÇ ÃÖ´ë 2 ¹è Á¤µµ±îÁö Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç ÃÖ´ëÀ¯¼ÓÀº ¼öÁ¦ÀÇ Á¾·ù ¹× È帧Á¶°Ç°ú´Â »ó°ü¾øÀÌ ¼öÁ¦¼³Ä¡ÁöÁ¡À¸·ÎºÎÅÍ ¼öÁ¦±æÀÌÀÇ ¾à $5{sim}6$ ¹è ÇÏ·ù¿¡¼­ ¹ß»ýÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
In this study, hydraulic characteristics of thalweg line occurred near the single groyne and recirculation zone around downstream of the structure were discussed from the experiments which conducted in fixed flat-bed channel flume. The thalweg line is the stream line where the maximum velocity occurs and flow separation appeared at the tip of groyne changes the thalweg alignment. In this study, the variations in flow fields which were caused by different length and permeability of groyne were measured by LSPIV(Large Scale Particle Image Velocimetry), and also the characteristics of thalweg line and separation area were analyzed. From these results, it is found that length to thalweg line from the channel wall $T_{CL}$ and height of separation area $S_h$ vary the channel width up to 75%, 50% in the change of length and permeability of groyne, however the Froude number does not affect on $T_{CL}$ and $S_h$. Velocity along the thalweg $U_{CL}$ Increased by twice the mean velocity, and the maximum velocity occurred in downstream where the distance $5{sim}6$ times of groyne length away from the groyne, which does not get affected by length and permeability of groyne and Froude number.
 
Ű¿öµå
´ÜÀϼöÁ¦;È帧Á߽ɼ±;È帧ºÐ¸®¿µ¿ª;¼öÁ¦±æÀÌ;Åõ°úÀ²;single groyne;thalweg line;separation area;length of groyne;permeability;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.39, no.4, 2006³â, pp.313-320
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200624717903817)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
¸ñ·Ïº¸±â
ȸ»ç¼Ò°³ ±¤°í¾È³» ÀÌ¿ë¾à°ü °³ÀÎÁ¤º¸Ãë±Þ¹æÄ§ Ã¥ÀÓÀÇ ÇѰè¿Í ¹ýÀû°íÁö À̸ÞÀÏÁÖ¼Ò ¹«´Ü¼öÁý °ÅºÎ °í°´¼¾ÅÍ
   

ÇÏÀ§¹è³ÊÀ̵¿