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Çѱ¹¼öÀÚ¿øÇÐȸ / v.22, no.3, 1989³â, pp.315-322
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( Comparison of Radiating Ocean Boundary Conditions by Error Analysis ) |
| ¼½Â¿ø;À±ÅÂÈÆ; ±¹¸³±º»ê´ëÇÐ ÇØ¾ç°øÇаú;ÇѾç´ëÇб³ Åä¸ñ°øÇаú;
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| ÇØ¾ç¼öÄ¡¸ðÇü¿¡ Àû¿ëµÇ´Â »óÀÌÇÑ ¹æ»çÁ¶°ÇÀ» Æ÷ÇÔÇÑ °³¹æ°æ°èÁ¶°ÇÀÇ ¿µÇâÀÌ $L^{2_}$-norm°ú RMS¿ÀÂ÷ÇØ¼®¿¡ ÀÇÇÏ¿© ºñ±³µÇ¾ú´Ù. ¼öÄ¡½ÇÇè¿¡¼´Â M2Á¶¼®, °ÝÀÚ¸ÁÀÇ ¿µÇâ, ÇØÀú¸¶ÂûÀÇ ¿µÇâ µîÀÌ °¢°¢ °í·ÁµÇ¾ú´Ù. ¿¬±¸°á°ú °³¼±¹æ»çÁ¶°ÇÀÌ °í·ÁµÉ ¶§ ´Ü¼øÇÑ ±¸Çü¸¸¿¡¼ ÇØ¼®ÇØ¿Í ºñ±³µÈ $M_2$Á¶¼®ÀÇ °æ¿ì´Â ¹æ»çÁ¶°ÇÀÌ °í·ÁµÇÁö ¾ÊÀ»¶§º¸´Ù $L^{2_}$-norm¿¡ ÀÇÇϸé 40%, RMS¿ÀÂ÷¿¡ ÀÇÇϸé 96%³ª ½Å·Ú¼ºÀÌ Çâ»óµÇ¾ú´Ù. ÀÌ´Â ¹Ý°ÝÀÚ¸¦ ÀÌ¿ëÇÒ ¶§ º¸´Ùµµ ´õ¿í ¸¸Á·½º·¯¿î °á°úÀÎ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÇØÀú¸¶ÂûÀÌ °í·ÁµÈ °æ¿ìµµ °³¼±¹æ»çÁ¶°ÇÀÇ µµÀÔÀÌ ÇÊ¿äÇÑ °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. |
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| The effects of open boundary conditions including the radiation condition are compared by utilizing the $L^{2_}$-norm and RMS error in the numerical modeling of ocean problem. In numerical tests of $M_2$ tide, grid size and bed roughness are considered and analyzed. For the $M_2$ tide test in a simplified bay where the analytical solutions are available, it is found that improved radiating boundary condition(IMPSOM) may increase the reliability of computed results by 40% of $L^{2_}$-norm and 96% of RMS error than the open boundary condition without radiation effect. In case of using the half-size grids, better results are obtained. It is also found that the IMPSOM is applicable with satisfaction when the bottom friction is included. |
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.22, no.3, 1989³â, pp.315-322
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO198911920092825)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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