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Çѱ¹¼öÀÚ¿øÇÐȸ / v.43, no.6, 2010³â, pp.543-557
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³«µ¿°Çϱ¸µÏ »ó·ù Á¢±Ù¼ö·Î¿¡¼ÀÇ À¯»ç·® °ø½Ä ¹× À¯»ç À̼ÛÇüÅ¿¡ µû¸¥ Çϻ󺯵¿ ¼öÄ¡¸ðÀÇ¿¡ °üÇÑ ¿¬±¸
( Numerical Analysis for Bed Changes due to Sediment Transport Capacity Formulas and Sediment Transport Modes at the Upstream Approached Channel of the Nakdong River Estuary Barrage ) |
| Áö¿î;¿©¿î±¤;Çѽ¿ø; ¸íÁö´ëÇб³ Åä¸ñȯ°æ°øÇаú;¸íÁö´ëÇб³ Åä¸ñȯ°æ°øÇаú;¸íÁö´ëÇб³ Åä¸ñȯ°æ°øÇаú ´ëÇпø;
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| º» ³í¹®¿¡¼´Â 2Â÷¿ø Çϻ󺯵¿ ¼öÄ¡¸ðÇüÀÎ CCHE2D ¸ðÇüÀ»ÀÌ¿ëÇÏ¿© À¯»ç·® °ø½Ä°ú À¯»çÀ̼ÛÇüź° ÀÌ·ù-È®»ê ¹æÁ¤½ÄÀÇ ¼±ÅÃÀÌ Çϻ󺯵¿ ¼öÄ¡¸ðÀǰá°ú °ª¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÏ°í ½ÇÁ¦ ÇöÀåÀÚ·á¿Í ºñ±³ÇÏ¿´´Ù. ¶ÇÇÑ ÀÌ·¯ÇÑ ºÐ¼®À» ±âÃÊ·Î ³«µ¿°Çϱ¸µÏ »ó·ù Á¢±Ù¼ö·Î¿¡¼ÀÇ ÃÖÀûÀÇ À¯»ç·® °ø½Ä°ú À¯»ç À̼ÛÇüź° ÀÌ·ù-È®»ê ¹æÁ¤½ÄÀ» Á¦¾ÈÇÏ¿´´Ù. ³«µ¿°Çϱ¸µÏ »ó·ù Á¢±Ù¼ö·Î¿¡ ´ëÇØ Ackers and White¿Í Engelund and HansenÀÇ À¯»ç·® °ø½Ä°ú ¼Ò·ù»ç¿Í ºÎÀ¯»ç À¯»ç À̼ÛÇüÅ¿¡ µû¸¥ ÀÌ·ù-È®»ê ¹æÁ¤½ÄÀ» °¢°¢ ´Ù¸£°Ô Àû¿ëÇÏ¿© ¸ðÀÇÇÑ °á°ú, Engelund and Hansen °ø½ÄÀ» Àû¿ëÇÑ °æ¿ì¿¡´Â Ackers and White °ø½ÄÀ» Àû¿ëÇÑ °æ¿ì¿Í ºñ±³ÇßÀ» ¶§, Æò¼ö ¹× È«¼ö Á¶°Ç¿¡¼ ¸ðµÎ Çϻ󺯵¿·®ÀÌ °ÅÀÇ ¾ø´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ Ackers and White °ø½ÄÀ¸·Î 2002³â¿¡ ¹ß»ýÇÑ ½ÇÁ¦ ¼ö¹®»ç»óÀ» Àû¿ëÇÏ¿© Çϻ󺯵¿ ¸ðÀÇÇÑ °á°ú, ¼Ò·ù»ç À̼ÛÇüÅÂÀÇ ÀÌ·ù-È®»ê ¹æÁ¤½ÄÀ» Àû¿ëÇÑ ¸ðÀǰá°ú°¡ ºÎÀ¯»ç À̼ÛÇüŸ¦ Àû¿ëÇßÀ» °æ¿ì º¸´Ù ½ÇÁ¦ Çϻ󺯵¿¿¡ ´õ ±ÙÁ¢ÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| The effects of the selection for sediment transport equations and advection-diffusion equations according to different sediment transport modes on the modeling results of bed changes were analyzed using the CCHE2D and compared with field data in this paper. The most suitable sediment transport equation and sediment transport mode for advection-diffusion equation were suggested for the upstream approached channel of the Nakdong River Estuary Barrage. The bed changes simulated by the Engelund and Hansen formula were very small in the modeling case for the low and high flow discharges compared with the case of the Ackers and White formula. Also, the numerical modeling with the actual hydraulic event in 2002 presents that the bed change result with the bed load transport type for advection-diffusion equation was close to the field measurement more than the suspended load type. |
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| Ű¿öµå |
| ³«µ¿°Çϱ¸µÏ;À¯»ç·® °ø½Ä;À¯»ç À̼ÛÇüÅÂ;Çϻ󺯵¿ ¸ðÀÇ;CCHE2D ¸ðÇü;Nakdong River Estuary Barrage;sediment transport equation;sediment transport mode;bed change modeling;CCHE2D model; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.43, no.6, 2010³â, pp.543-557
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201020065114613)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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