¶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.42, no.4, 2009³â, pp.271-279
Riemann ÇØ¹ýÀ» ÀÌ¿ëÇÑ 1Â÷¿ø °³¼ö·Î ¼ö¸®Çؼ® - ÀÚ¿¬Çϵµ Àû¿ë
( One-dimensional Hydraulic Modeling of Open Channel Flow Using the Riemann Approximate Solver - Application for Natural River )
±èÁö¼º;ÇѰǿ¬; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿ø.ȯ°æ¿¬±¸º»ºÎ ÇÏõ.ÇØ¾ÈÇ׸¸¿¬±¸½Ç;°æºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
ÃÊ ·Ï
º» ¿¬±¸´Â ´Ü¼øÇÑ Á÷»ç°¢Çü Çϵµ¿¡¼­ ¹ß»ýÇÑ ´ï ºØ±« ¹× È«¼öÀüÆÄ µî¿¡¼­ ¸¸Á·½º·¯¿î °á°ú¸¦ º¸¿´´ø Riemann ±Ù»çÇØ¹ýÀ» ÀÌ¿ëÇÑ 1Â÷¿ø À¯ÇÑüÀû±â¹ýÀ» ºÒ±ÔÄ¢ÇÑ ÇϵµÇü»óÀÇ ÀÚ¿¬Çϵµ¿¡ Àû¿ëÇϱâ À§ÇÏ¿© »õ·Î¿î ±â¹ýÀ» °³¹ßÇÏ´Â °ÍÀÌ ¸ñÀûÀÌ´Ù. À̸¦ À§ÇÏ¿© ÀÚ¿¬ÇÏõ ´Ü¸éÀ» µî°¡ÀÇ Á÷»ç°¢Çü ´Ü¸éÀ¸·Î º¯È¯ÇÏ´Â °³³äÀ» µµÀÔÇÏ¿´À¸¸ç, ±× °á°ú, ¿îµ¿·®¹æÁ¤½ÄÀÌ ¼öÁ¤µÇ¾ú´Ù. »õ·Ó°Ô °³¹ßµÈ ±â¹ýÀ» Á¤È®Çذ¡ Á¸ÀçÇÏ´Â »ï°¢Çü ´Ü¸éÇϵµÀÇ ´ï ºØ±« È帧¿¡ Àû¿ëÇÏ°í ±× °á°ú¸¦ ºñ±³ÇÔÀ¸·Î½á, ±â¹ýÀÇ Á¤È®¼º ¹× Àû¿ë¼ºÀÌ °ËÁõµÇ¾ú´Ù. ´Ü¸éÀÇ Çü»ó ¹× ´Ü¸é°£ °Å¸®°¡ ±ÕÀÏÇÏÁö ¾Ê´Â ÀÚ¿¬Çϵµ¿¡ Àû¿ëÇÑ °á°ú´Â ½ÇÃø¼öÀ§¿Í ºñ±³ÇÏ¿© È«¼öÆÄÀÇ ÀüÆÄ ¾ç»ó, µµ¼öÀÇ ¹ß»ý À§Ä¡ ¹× Å©±â, ±×¸®°í Àü ±¸°£¿¡¼­ÀÇ ÃÖ´ë ¼öÀ§°¡ Àß ÀÏÄ¡ÇÔÀ» ³ªÅ¸³½´Ù. º» ¿¬±¸°á°ú·ÎºÎÅÍ ±âÁ¸ÀÇ ±ÕÀÏÇÑ ´Ü¸éÀ» »ç¿ëÇÏ¿© °³¹ßµÈ ±â¹ýµéÀ» º¹ÀâÇÑ ¼öġ󸮰úÁ¤ ¾øÀÌ ÀÚ¿¬ÇÏõ ´Ü¸é¿¡ Á÷Á¢ Àû¿ëÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
The objective of this study is to develop the scheme to apply one-dimensional finite volume method (FVM) to natural river with complex geometry. In the previous study, FVM using the Riemann approximate solver was performed successfully in the various cases of dam-break, flood propagation, etc. with simple and rectangular cross-sections. We introduced the transform the natural into equivalent rectangular cross-sections. As a result of this way, the momentum equation was modified. The accuracy and applicability of newly developed scheme are demonstrated by means of a test example with exact solution, which uses triangular cross-sections. Secondly, this model is applied to natural river with irregular cross-sections and non-uniform lengths between cross-sections. The results shows that the aspect of flood propagation, location and height of hydraulic jump, and numerical solutions of maximum water level are in good agreement with the measured data. Using the developed scheme in this study, existing numerical schemes conducted in simple cross-sections can be directly applied to natural river without complicated numerical treatment.
 
Ű¿öµå
õÀÌ·ù;Riemann ÇØ¹ý;ÀÚ¿¬Çϵµ;µî°¡´Ü¸é;¸¶¸¥ Çϵµ;transcritical flow;Riemann solver;natural river;equivalent cross-section;dry-bed;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.42, no.4, 2009³â, pp.271-279
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200912840746063)
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¿