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Çѱ¹¼öÀÚ¿øÇÐȸ / v.23, no.3, 1990³â, pp.319-328
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Boundary-Fitted ÁÂÇ¥°è·Î º¯È¯ÇÑ 2Â÷¿øÁ¶¼®¸ðÇüÀÇ ¸Å°³º¯¼ö µ¿Á¤
( The Parameter Identification of Tidal Model on The Boundary-Fitted Coordinates ) |
| ±è°æ¼ö;ÀÌÀçÇü; ÀüºÏ´ëÇб³ ´ëÇпø;ÀüºÏ´ëÇб³ Åä¸ñ°øÇаú ºÎ±³¼ö, ±º»ê¼ö»êÀü¹®´ëÇÐ ÇØ¾çÅä¸ñ°ú ºÎ±³¼ö, ÀüºÏ´ëÇб³ Åä¸ñ°øÇаú;
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| 2Â÷¿ø Çϱ¸¸ðµ¨ÀÇ ¸Å°³º¯¼ö µ¿Á¤À» BFÁÂÇ¥°è·Î º¯È¯µÈ ADI-FDMÃâ·Â ¼öÄ¡¸ðÇüÀ» »ç¿ëÇÏ¿© ¼öÇàÇÏ¿´´Ù. ¸ðÇü¿¡¼ ±âº» ¹æÁ¤½ÄÀ» µ¿¼ö¿ªÇнİú ¼ö¼Û¹æÁ¤½ÄÀÌ º¹ÇÕµÈ ¹æÁ¤½ÄÀ» »ç¿ëÇÏ¿´´Ù. Thompson½ÄÀÌ Áö¹è¹æÁ¤½ÄÀ» »ç°¢Æò¸éÀ¸·Î º¯È¯ Çϴµ¥ »ç¿ëµµÀ̤ä¶À¸¸ç ThompsonÀÇ Elliptic °ÝÀڹ߻ý±â¹ýÀÌ BF ÁÂÇ¥°è¿¡¼ °î¼±°ÝÀÚ¸ÁÀ» ¹ß»ýÇϴµ¥ »ç¿ëµÇ¾ú´Ù. Áö¹è¹æÁ¤½Ä¿¡¼ µ¿Á¤µÉ ¸Å°³º¯¼ö´Â ¸¶Âû°è¼ö¿Í ºÐ»ê Á¤¼öÀÌ´Ù. Ãâ·Â¼öÄ¡¸ðÇüÀº BFÁÂÇ¥°è¿¡¼ Á¶¼®Æò±Õ ¿°µµ ¸ðÇüÀÌ »ç¿ëµÇ¾ú´Ù. ÃÖÀûÈ ±â¹ýÀ¸·Î ¿µÇâ°è¼ö ¾Ë°í¸®ÁòÀ» Àû¿ëÇÏ¿´´Ù. ¶ÇÇÑ Lumped ¸ðÇüÀÌ µ¿Á¤¿¡ °í·Á µÇ¾ú´Ù. º» ¿¬±¸´Â »õ·Î¿î Ãâ·Â ¼öÄ¡¸ðÇüÀÌ Çϱ¸¿°µµ ¸ðÇüÀÇ ¸Å°³º¯¼ö µ¿Á¤¿¡ ÀÖ¾î À¯¿ëÇѰ¡¸¦ °ËÅä Çϴµ¥ ÁßÁ¡À» µÎ¾ú´Ù. Á¦¾ÈµÈ ±â¹ýÀº °£´ÜÇÑ °¡»ó¸ðÇü¿¡ ½ÇÇèÀûÀÎ Àû¿ëÀ» ÅëÇÏ¿© °ËÅäµÇ¾ú´Ù. °ËÅäÇÑ °á°ú´Â Á¦¾ÈµÈ ±â¹ýÀÌ Çϱ¸¸ðÇü¿¡¼ ¸Å°³º¯¼ö µ¿Á¤½Ã µµÀ﵃ ¼ö ÀÖÀ½À» º¸¿©ÁÖ¾ú´Ù. |
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| The Parameter Identification of 2-demensional estuarine model was carried out using new output ADI-FDM numerical semi-implicit schem transformed in boundary fitted(BF) - coordinate. The hydrodynamic equations which is coupled with the transport equations were used as basic equations in the model. Thompson's equations were used to transform governing equations into rectangular plane equations and his elliptic grid generation scheme was used to generate curvilinear grid system. in BF - coordinates. The parameters to be identified are friction coefficient and disperse coefficient embedded in the governing equations. The numerical output scheme is tidally averaged salinity model in BF - coordinates. The algorithm to optimize norm of error between observations and calculations is the influence coefficinet algorithm associated with least square criterion. The lumped model is conssidered in identification. This paper was concetrated on checking whether the new output scheme might be useful to identify parameters in estuarine salinity model or not. The proposed method was tested through experimental application with hypothetical simple model. The result of the test shows that the proposed method can be used for parameter identification in estuarine model. |
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.23, no.3, 1990³â, pp.319-328
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199011920093238)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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