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Çѱ¹¼öÀÚ¿øÇÐȸ / v.30, no.1, 1997³â, pp.35-44
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°³¼ö·Î³»ÀÇ Á¡º¯ ¹× ±Þº¯ ºÎÁ¤·ù¿¡ ´ëÇÑ À¯ÇÑ¿ä¼ÒÇØ¼® : II. Àû¿ë¿¹
( Finite Element Analysis of Gradually and Rapidly Varied Unsteady Flow in Open Channel : II. Applications ) |
| ÇѰǿ¬;¹ÚÀçÈ«;ÀÌÀ»·¡; °æºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°æºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú , °æºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;;
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| Dynamic wavetlrÀÇ Petrov-Galerkin ¹æ¹ý¿¡ ÀÇÇÑ À¯ÇÑ¿ä¼Ò¸ðÇüÀ» Á¡º¯ ¹× ±Þº¯ ºÎÁ¤·ùÀÇ °æ¿ì¿¡ Àû¿ëÇÏ¿´´Ù. Á¤»óµµ¼ö, ¸¶Âû¾ø´Â ¼öÆò¼ö·Î»ó¿¡¼ÀÇ ºñ¼±Çü Ç¥¸éµ¿¿äÀÇ Àü´Þ ¹× ´ï ÆÄ±« µîÀÇ ±Þº¯ ºÎÁ¤·ùÀÇ °æ¿ì¿¡¼ ±× ÇØ¼®°á°ú´Â ±âÁ¸¹æ¹ý¿¡ ºñÇØ ¿ì¼öÇÏ°Ô ³ªÅ¸³µ°í ÇØ¼®ÀûÀÎ ÇØ¿Íµµ Àß ÀÏÄ¡µÇ°í ÀÖ¾ú´Ù. º» ¿¬±¸¸ðÇüÀº ¸¶Âû¾ø´Â ¼öÆò¼ö·Î»óÀÇ surgeÀÇ ÀüÆÄ¿¡ ´ëÇÏ¿© Àû¿ëÇÏ¿© ±Þ°ÝÇÑ ¼±´ÜºÎ¸¦ ÇØ¼®ÀûÀÎ ÇØÀÇ °æ¿ì¿Í °°ÀÌ ÀçÇöÇÒ ¼ö ÀÖ¾î ±× Àû¿ë¼ºÀ» ÀÔÁõÇÏ¿´´Ù. Á¡º¯ ºÎÁ¤·ùÀÇ °æ¿ì¿¡´Â ÅÂȰ ÇÏ·ùºÎ¿¡ ´ëÇØ¼ Àû¿ëµÇ¾ú´Âµ¥ ±× °è»ê°á°ú´Â ¼öÀ§, À¯·®ÀÇ ¼ö¹®°î¼±°ú ±× Á¾´ÜÇü»ó¿¡ ÀÖ¾î ±âÁ¸ÀÇ DWOPER¸ðÇü°ú ´ëµîÇÑ °è»ê°á°ú·Î ³ªÅ¸³ª º» ¿¬±¸ÀÇ È°¿ë¼ºÀ» ÀÔÁõÇÏ¿´´Ù. |
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| Petrov-Galerkin finite element model for analyzing dynamic wave equation is applied to gradually and rapidly varied unsteady flow. The model in verified by applying to hydraulic jump, nonlinear disturbance propagation in frictionless horizontal channel and dam-break analysis. It shows stable and accurate results compared with analytical solutions for various cases. The model in applied to a surge propagation in a frictionless horizontal channel. Three-dimensional water surface profiles show that the computed result converges to the analytical one with sharp discontinuity. The model is also applied to the Taehaw River to analyze unsteady floodwave propagation. The computed results have good agreements with those of DWOPER model in terms of discharge and stage hydrographs. |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.30, no.1, 1997³â, pp.35-44
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711920100015)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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