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Çѱ¹¼öÀÚ¿øÇÐȸ / v.26, no.2, 1993³â, pp.39-48
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¿Ï°æ»ç ¹æÁ¤½ÄÀ» ÀÌ¿ëÇÑ Ç׳»ÀÇ ÆÄ°í¿¹Ãø
( A Prediction Method of Wave Deformation in Harbors Using the Mild Slope Equation ) |
| ÃÖ¼±È£;¹Ú»ó±æ; Á¤È¸¿ø, ºÎ»ê´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;Á¤È¸¿ø, ºÎ»ê´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
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| ÇØ¾È¿¡¼ ¹ß»ýÇÏ´Â ÀçÇØÀÇ Å« ¿øÀÎÀº ÆÄ¶ûÀÛ¿ë¿¡ ±âÀεDZ⠶§¹®¿¡ ÇØ¾ç ±â¼úÀÚ´Â Á¤È®ÇÑ ÆÄ¶ûº¯ÇüÀ» ¿¹ÃøÇÏ´Â °ÍÀÌ ¸Å¿ì Áß¿äÇÏ´Ù. ÆÄ¶ûº¯ÇüÀÇ ÁÖ¿äÀÎÀº °£¼öÈ¿°ú, ¹Ý»ç, ȸ¼®, ±¼¼®, »ê¶õ, ¹æ»çµîÀ» µé ¼ö ÀÖ´Ù. ÃÖ±Ù, ÆÄ¶ûº¯Çü¿¡ ´ëÇÏ¿© ¼öÄ¡¸ðµ¨ÀÌ ÀÌ¿ëµÇ°í ÀÖ´Ù. º» ¿¬±¸´Â ±¼¼®°ú ȸ¼®À» µ¿½Ã¿¡ °í·ÁÇÒ ¼ö ÀÖ´Â ¿Ï°æ»ç¹æÁ¤½ÄÀ» ÀÌ¿ëÇÏ¿© À¯ÇÑ¿ä¼Ò¹ýÀ¸·Î ¼öÄ¡¸ðµ¨À» ¼ö¸³Çß´Ù. ÀÌ ¹æ¹ýÀº º¹ÀâÇÑ °æ°èÁ¶°ÇÀ» °®´Â ÇØ¾È¿¡ Á¤È®ÇÑ ÆÄ¶û¿¹ÃøÀ» ÇÒ ¼ö ÀÖ´Â ÀåÁ¡ÀÌ ÀÖÁö¸¸ ¸î °¡ÁöÀÇ °³¼±ÇؾßÇÒ ¹®Á¦Á¡µµ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. º» °è»ê°á°ú¸¦ °ËÁ¤Çϱâ À§ÇØ ¸ðÇü½ÇÇèÀ» ½Ç½ÃÇß´Ù. ¿Ï°æ»ç ¹æÁ¤½ÄÀ» À¯ÇÑ¿ä¼Ò¹ýÀ¸·Î °è»êÇÑ °è»ê°ª°ú LeeÀÇ ¹æ¹ý(Helmholtz ¹æÁ¤½ÄÀ» À¯ÇÑÂ÷ºÐ¹ýÀ¸·Î ¼öÄ¡°è»êÇÑ ¹æ¹ý)À¸·Î °è»êÇÑ °ª, ±×¸®°í ½ÇÇè°ª°ú ºñ±³ÇÑ °á°ú Ÿ´ç¼ºÀÖ´Â ÀÏÄ¡¸¦ ¾ò¾ú´Ù. |
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| Since major reason of disaster in coastal area is wave action, prediction of wave deformation is one of the most important problems to ocean engineers. Wave deformations are due to physical factors such as shoaling effect, reflection, diffraction, refraction, scattering and radiation etc. Recently, numerical models are widely utilized to calculate wave deformation. In this study, the mild slope equation was used in calculatin gwave deformation which considers diffraction and refraction. In order to slove the governing equation, finite element method is introduced. Even though this method has some difficulties, it is proved to predict the wave deformation accurately even in complicated boundary conditions. To verify the validity of the numerical calculation, experiments were carried out in a model harbour of rectangular shape which has mild slope bottom. The results by F.E.M. are compared with those of both Lee's method and the experiment. The results of these three methods show reasonable agreement. |
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.26, no.2, 1993³â, pp.39-48
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199311920094419)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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