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Çѱ¹¼öÀÚ¿øÇÐȸ / v.32, no.4, 1999³â, pp.447-455
°æ»çÁöÇü¿¡¼­ÀÇ Bragg¹Ý»ç
( Bragg Reflection on a Sloping Beach )
ÀÌÁ¾ÀÎ;Á¶¿ë½Ä;ÀÌÁ¤±Ô; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿øÈ¯°æ¿¬±¸ºÎ À§Ã˼±ÀÓ¿¬±¸¿ø;¼¼Á¾´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;;
 
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º» ¿¬±¸¿¡¼­´Â Boussinesq¹æÁ¤½ÄÀ¸·ÎºÎÅÍ À¯µµÇÑ Áö¹è¹æÁ¤½ÄÀ» ¼öÄ¡ ÀûºÐÇÏ¿© Á¤ÇöÆÄÇü ÁöÇüÀÌ ÀÏÁ¤ÇÑ °æ»ç¿¡ ³õ¿© ÀÖ´Â ÇØÀúÁöÇüÀ» Åë°úÇÏ´Â Å©³ëÀ̵åÆÄÀÎ Bragg¹Ý»ç¸¦ ÇØ¼®ÇÏ¿´´Ù. Áö¹è¹æ½Ä¿¡ Æ÷ÇÔµÈ ±Þº¯Ç×ÀÇ È¿°ú¿Í ºñ¼±Çü¼ºÀÇ Å©±â¿¡ µû¸¥ Bragg¹Ý»ç¸¦ ÇØ¼®ÇÏ¿´´Ù. ¶ÇÇÑ, ´Ù¾çÇÑ °æ»ç¿¡ µû¸¥ ¹Ý»çÀ²ÀÇ º¯È­¸¦ °è»êÇÏ¿© ¹Ý»çÀ²Àº °æ»ç¿¡ µû¶ó Å©°Ô º¯È­ÇÏÁö ¾ÊÀ½À» ¹àÇô³Â´Ù.
In this study, the Bragg resonant of cnoidal waves propagating over a sinusoidally varying topography lying on a uniformly sloping beach is investigated. The governing equations derived from the Boussinesq equations are numerically integrated. The effects of fast varying terms and nonlinearity in reflection coefficients are also examined. Variation of reflection coefficient for different sloping beaches is studied. It is found that reflection coefficients are not strongly dependent on slopes of beaches.
 
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Bragg¹Ý»ç;Boussinesq ¹æÁ¤½Ä;Á¤ÇöÆÄÇü ÁöÇü;Å©³ëÀ̵åÆÄ;Bragg reflection;Boussinesq equations;sinusoidally varying topography;cnoidal wave;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.32, no.4, 1999³â, pp.447-455
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911920063209)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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