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Çѱ¹¼öÀÚ¿øÇÐȸ / v.29, no.5, 1996³â, pp.173-184
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ËÒâ©ÖØ¿¡¼ÀÇ 2óêª ÜôïÒ×µ ú°à°¸¦ À§ÇÑ êóùÚô÷îÝÛö
( Finite Volume Method for Two-Dimensional Unsteady Flow in Open Channel ) |
| ÀÌÁøÈñ;±è°æÅ¹;½É¸íÇÊ; ÀÎÇÏ´ëÇб³ ´ëÇпø Åä¸ñÇаú ¼®»çÁ¹¾÷;ÀÎÇÏ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;ÀÎÇÏ´ëÇб³ Åä¸ñ°øÇаú;
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| º» ¿¬±¸¿¡¼´Â 2Â÷¿ø õ¼ö¹æÁ¤½ÄÀ» Áö¹è¹æÁ¤½ÄÀ¸·Î ÀÌ¿ëÇÏ¿© À¯¼Ó ¹× ¼öÀ§ºÐÆ÷¸¦ °è»êÇÒ ¼ö ÀÖ´Â ¼öÄ¡¸ðµ¨À» °³¹ßÇÏ¿´´Ù. À¯ÇÑüÀû¹ý¿¡ ÀÇÇÑ ÀÌ»êȰúÁ¤¿¡¼, 3Â÷ÀÇ Runge-Kutta ¹æ¹ý°ú 3Â÷ Á¤µµÀÇ upwind schemeÀ» µµÀÔÇÏ¿© Áö¹è¹æÁ¤½ÄÀÇ ºñÁ¤»óÇ×°ú À̼ÛÇ×À» ÀÌ»êÈÇÏ¿´´Ù. °³¹ßµÈ ¸ðÇüÀÇ Á¤È®¼ºÀ» °ËÁõÇϱâ À§ÇÏ¿© ¸¶Âû ¾ø´Â Á÷»ç°¢Çü ¼öÆò¼ö·Î¿¡ Àû¿ëÇÏ¿´À¸¸ç, ¼öÄ¡¸ðÇü¿¡ ÀÇÇØ ¾ò¾îÁø ¼ö½É°ú À¯¼ÓÀÌ Á¤È®ÇØ¾ß Àß ÀÏÄ¡ÇÏ¿´´Ù. ¶ÇÇÑ, º» ¸ðÇüÀ» ´ëĪ ¹× ºñ´ëĪ ´Ü¸éÃà¼ÒºÎ¸¦ °®´Â Á÷»ç°¢Çü ¼ö·Î¿¡ Àû¿ëÇÏ¿© È帧¿¡ ´ëÇÑ À¯¼ÓºÐÆ÷¿Í È«¼öÆÄÀÇ ÀüÆÄ°¡ ¼öÄ¡¸ðÀÇ ÇÏ¿´À¸¸ç, ±× °á°ú´Â È帧Ư¼ºÀ» Àß ¹¦»çÇÏ¿´´Ù. |
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| In this study, a two-dimensional shallow-water equation was used to develop the mathematical model for computing water levels and flow distribution. In the discretization equations, based on the finite volume method (FVM), the third order Runge-Kutta method and the third order upwind scheme were introduced to handle the unsteady and vconvective terms in the governing equations. To determine the accuracy of the developed model, it was applied to the rectangular horizontal channel in a frictionless flow. The water depth and velocity obtained by the numerical model were found to agree closely with the exact solution. The model was also applied to the rectangular channel with both the symmetric and the non symmetric constriction. The velocity distribution of the flow and the propagation of the flood wave were simulated and the results well described the flow characteristics. |
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.29, no.5, 1996³â, pp.173-184
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611920097833)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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