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Çѱ¹¼öÀÚ¿øÇÐȸ / v.36, no.5, 2003³â, pp.751-760
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Muskingum-Cunge È«¼öÃßÀû ¹æ¹ýÀÇ ¿ÀÂ÷ÇØ¼®
( Error Analysis of Muskingum-Cunge Flood Routing Method ) |
| ±è´ë±Ù;¼ÀÏ¿ø; ´ëºÒ´ëÇб³ Åä¸ñȯ°æ°øÇаú;¼¿ï´ëÇб³ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;
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| ½Ã°£ ¹× °ø°£°¡ÁßÄ¡¸¦ °íÁ¤ÇÏÁö ¾Ê´Â Muskingum-Cunge È«¼öÃßÀû¹æ¹ý¿¡ ´ëÇÑ ¿ÀÂ÷ÇØ¼®À» ¼öÇàÇÏ¿´´Ù. ¿ÀÂ÷ÇØ¼® °á°ú ½Ã°£°¡ÁßÄ¡¿Í °ø°£°¡ÁßÄ¡ÀÇ ÇÕÀÌ 1.0ÀÌ»óÀÎ °æ¿ì¿¡´Â È«¼öÆÄ°¡ ÁøÇàÇÏ¸é¼ ÁõÆøµÇ¾î ¼öÄ¡ÇØ°¡ ¹ß»êÇÏ¿´´Ù. ½Ã°£°¡ÁßÄ¡¿Í °ø°£°¡ÁßÄ¡ÀÇ ÇÕÀÌ ÀÛÀ»¼ö·Ï ¼öġȮ»êÀÌ Å©°Ô ¹ß»ýÇÏ¿´´Ù. °ÝÀÚÀÇ ÇØ»óµµ°¡ ³·À»¼ö·Ï ¼öġȮ»ê ¹× ¼öÄ¡Áøµ¿ÀÌ Å©°Ô ¹ß»ýÇÏ¿´´Ù. ¼öÄ¡½ÇÇè°ú ÀÚ¿¬ÇÏõ¿¡ ´ëÇÑ Àû¿ë °á°ú, °ø°£°¡ÁßÄ¡¸¦ °íÁ¤ÇÏÁö ¾Ê´Â °æ¿ì¿¡´Â °ø°£°¡ÁßÄ¡¸¦ 0.5·Î °íÁ¤ÇÏ´Â ÀüÅëÀûÀÎ Muskingum-Cunge¹æ¹ýº¸´Ù ÷µÎÀÇ °¨¼â°¡ Å« È«¼öÆÄ ¸ðÀÇ¿¡ È¿°úÀûÀÓÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. |
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| Error analysis of finite difference equation on the Muskingum-Cunge flood routing method with free time and space weighting factor was carried out. The error analysis shows that the numerical solution of the Muskingum-Cunge method becomes diverged with time when the sum of time weighting factor and space weighting factor is greater than 1.0. Numerical diffusion increases when the sum of time weighting factor and space weighting factor decreases. Numerical diffusion and numerical oscillation increase when the grid resolution is coarse. Numerical experiments and field applications show that the Muskingum-Cunge method with free space weighting factor is more effective for simulating the flood routing with great peak diminution than conventional Muskingum-Cunge method with fixed space weighting factor, 0.5. |
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| Ű¿öµå |
| È«¼öÃßÀû;Muskingum-Cunge ¹æ¹ý;¿ÀÂ÷ÇØ¼®;¼öġȮ»ê;¼öÄ¡Áøµ¿;flood routing;Muskingum-Cunge method;error analysis;numerical diffusion;numerical oscillation; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.36, no.5, 2003³â, pp.751-760
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311922024512)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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