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Çѱ¹¼öÀÚ¿øÇÐȸ / v.36, no.3, 2003³â, pp.447-454
2Â÷¿ø À¯ÇÑ¿ä¼Ò¹ýÀ» ÀÌ¿ëÇÑ ºÒÅõ°ú¼º »ç°¢Çü ¼öÁß¹æÆÄÁ¦ÀÇ Bragg ¹Ý»ç ÇØ¼®
( Analysis of Bragg Reflection of Waves due to Rectangular Impermeable Submerged Breakwaters with Two-Dimensional Finite Element Method )
Á¶¿ë½Ä;Á¤¿ìâ; ÇѾç´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;È«ÀÍ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â À¯ÇÑ¿ä¼Ò¹ýÀ» ÀÌ¿ëÇÏ¿© ÀÏÁ¤ ¼ö½É»ó¿¡¼­ »ç°¢Çü Çü»óÀÇ ºÒÅõ°ú¼º ¼öÁß¹æÆÄÁ¦¿¡ ÀÇÇÑ ÆÄ¶ûÀÇ Bragg ¹Ý»ç¸¦ ¼öÄ¡ÀûÀ¸·Î °íÂûÇÏ¿´´Ù. À¯ÇÑ¿ä¼Ò¹ý¿¡ ÀÇÇØ °è»êµÈ ¹Ý»çÀ²Àº ¼ö¸®¸ðÇü½ÇÇèÀ» ÅëÇØ ¾ò¾îÁø °á°ú¿Í ºñ±³ÇÏ¿´À» ¶§ ºñ±³Àû Àß ÀÏÄ¡ÇÏ¿´À¸¸ç, °íÀ¯ÇÔ¼öÀü°³¹ý¿¡ ÀÇÇÑ °á°ú¿Íµµ ÁÁÀº ÀÏÄ¡¸¦ ³ªÅ¸³»¾ú´Ù. ±×¹Û¿¡ º» ¿¬±¸¿¡¼­ °³¹ßµÈ ¸ðÇüÀº ºÒÅõ°ú¼º ¼öÁß¹æÆÄÁ¦ÀÇ Æø°ú ±æÀÌÀÇ º¯È­¿¡ µû¸¥ ¹Ý»çÀ² °è»ê¿¡ Àû¿ëµÇ¾ú´Ù.
The Bragg reflection of monochromatic waves propagating over a rectangular-typed impermeable submerged breakwaters is numerically investigated by using the finite element method. The reflection coefficients calculated from the present model are compared with those of laboratory measurements and the eigenfunction expansion method. A good agreement is observed. The finite element model is also applied to calculate reflection coefficients according to variations of length and width of submerged breakwater.
 
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¼öÁß¹æÆÄÁ¦;À¯ÇÑ¿ä¼Ò¹ý;Bragg ¹Ý»ç;°íÀ¯ÇÔ¼öÀü°³¹ý;submerged breakwater;finite element method;Bragg reflection;eigenfunction expansion method;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.36, no.3, 2003³â, pp.447-454
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200302612608020)
¾ð¾î : Çѱ¹¾î
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