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Çѱ¹¼öÀÚ¿øÇÐȸ / v.38, no.5, 2005³â, pp.333-343
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ÀÏÂ÷¿ø »ó·ùÀ̼ÛÇü¸ðÇüÀÇ ÀÚ¿¬Çϵµ¿¡ ´ëÇÑ Àû¿ë
( Application of a One-Dimensional Upwind Model for Natural Rivers ) |
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»ó·ùÀ̼۱â¹ýÀº Ãæ°ÝÆÄ ¸ðÀÇ¿¡ ¸¹ÀÌ »ç¿ëµÇ°í ÀÖÀ¸³ª »ý¼ºÇ×ÀÇ Ã³¸® ÇѰè·Î ÀÎÇØ ÀÚ¿¬Çϵµ¿¡ Àû¿ëµÈ »ç·Ê´Â ¸Å¿ì µå¹® »óȲÀÌ´Ù. »ý¼ºÇ× Ã³¸®¸¦ À§ÇÑ ±â¹ýµéÀÌ °³¹ßµÇ±â´Â ÇÏ¿´À¸³ª ÀÚ¿¬Çϵµ¿¡ Á÷Á¢ Àû¿ëµÉ ¼ö ÀÖ´Â È¿°úÀûÀÎ ±â¹ýÀº ¾ø´Â »óȲÀ̱⠶§¹®ÀÌ´Ù. º» ³í¹®¿¡¼´Â »ó·ùÀ̼ÛÇü ÀÏÂ÷¿ø À½ÇØ ¼öÄ¡¸ðÇüÀ» ÀÚ¿¬Çϵµ¿¡ Àû¿ëÇÏ¿´´Ù. »ó·ùÀ̼۸ðÇüÀº ÇÏ»ó°ú ÇÏÆøÀÌ ½ÉÇÏ°Ô º¯ÈÇÏ´Â °¡»óÇϵµ¿Í ÇÏõ±¸Á¶¹°ÀÌ ÀÖ´Â ½ÇÁ¦ ÀÚ¿¬ÇÏõ¿¡ Àû¿ëµÇ¾ú´Ù. ¶ÇÇÑ º» ¿¬±¸¿¡¼´Â ÀÌ ¸ðÇüÀ» Á¤»ó·ù, ºÎÁ¤·ù, ´ïºØ±«·ù, º¸¾îÀÇ ÀüÆÄ µî ¿©·¯ °¡Áö È帧¿¡ Àû¿ëÇÏ¿© Á¤È®¼º°ú Àû¿ë¼ºÀ» °ËÁõÇÏ¿´´Ù. °ËÁõ°á°ú º» ¿¬±¸¿¡¼ °³¹ßµÈ ¸ðÇüÀº ÀÚ¿¬ÇÏõ¿¡¼ ¹ß»ýÇÏ´Â ¿©·¯ °¡Áö ÇüÅÂÀÇ È帧À» ³ôÀº Á¤È®µµ·Î ¾ÈÁ¤¼ºÀÖ°Ô ¸ðÀÇÇÒ ¼ö ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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The upwind model is well known to simulate shockwaves, but it is rarely applied to natural rivers because of problems caused by the source terms. Although several methods have been developed to deal with the source terms, none of them has been applied to natural rivers. This paper deals with application of the upwind model to the natural river. An implicit upwind model is applied to a hypothetical irregular channel and a natural river with highly irregular bed, width, and hydraulic structures. Different types of the flows including steady-state flow, flood wave, dam-break wave, and bore are simulated to test accuracy and applicability of the implicit upwind model. It is proved that the model can simulate various types of flows in natural rivers with high accuracy and robustness. |
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Ű¿öµå |
1Â÷¿ø »ó·ùÀÌ¼Û ¸ðÇü;»ó·ùÀ̼Û;ÀÚ¿¬Çϵµ;ºÒ¿¬¼Ó È帧;»ý¼ºÇ×;ÇѰ;one-dimensional upwind model;natural river;discontinuous flow;source term;Han River; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.38, no.5, 2005³â, pp.333-343
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200531234553523)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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