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Çѱ¹¼öÀÚ¿øÇÐȸ / v.32, no.6, 1999³â, pp.675-683
¼±¹ÝÁöÇüÀÇ Å©±â¿¡ µû¸¥ ¹Ý»çÀ²ÀÇ º¯È­
( Variation of Reflection Coefficients for a Shelf with Varying Dimensions )
Á¶¿ë½Ä;ÀÌÁ¾ÀÎ;±è¿µÅÃ;ÀÌÁ¤±Ô; ¼¼Á¾´ëÇб³ °ø°ú´ëÇÐ Åä¸ñȯ°æ°øÇаú;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿øÈ¯°æ¿¬±¸ºÎ;ÇѾç´ëÇб³ ´ëÇпø;;
 
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º» ¿¬±¸¿¡¼­´Â ¼±¹ÝÁöÇüÀÇ Å©±â¿¡ µû¸¥ ÆÄ¶û ¹Ý»çÀ²ÀÇ º¯È­¸¦ ÀÌ·ÐÀûÀ¸·Î °è»êÇÏ¿´´Ù. ¼ö½ÉÀÌ ±Þº¯ÇÔ¿¡ µû¶ó ¹ß»ýÇÏ´Â ÆÄ¶ûÀÇ È¸ÀýÀ» °íÀ¯ÇÔ¼ö Àü°³¹ýÀ» ÀÌ¿ëÇÏ¿© ³ªÅ¸³Â´Ù. ¹Ý»çÀ²¿¡´Â ÁøÇàÆÄ»Ó¸¸ ¾Æ´Ï¶ó ¼Ò¸êÆÄµµ °í·ÁÇÏ¿´À¸¸ç, ÆÄ¶ûÀÇ ¹Ý»çÀ²¿¡¼­ ¼Ò¸êÆÄÀÇ ¿ªÇÒÀ» ÁßÁ¡ÀûÀ¸·Î ¿¬±¸ÇÏ¿´´Ù. Á÷°¢À¸·Î ÀÔ»çÇÏ´Â ÆÄ¶û»Ó¸¸ ¾Æ´Ï¶ó °æ»çÁö°Ô ÀÔ»çÇÏ´Â ÆÄ¶ûÀÇ ¹Ý»çÀ²À» »êÁ¤ÇÏ¿´À¸¸ç, ÆÄ¶û¿¡³ÊÁöÀÇ º¸Á¸À» °Ë»çÇÏ¿© ¹Ý»çÀ²ÀÇ Á¤È®¼ºÀ» °ËÁõÇÏ¿´´Ù.
The reflection coefficients of monochromatic waves propagating over a shelf with varying dimensions are theoretically calculated. The diffraction of waves by an abrupt depth change is formulated by the eigenfunction expansion method. Not only propagating mode but also evanescent modes are considered in formulation. The role of evanescent modes in reflection coefficients is investigated in detail. Water waves are obliquely as well as normally incident to the region. The obtained reflection coefficients are verified by checking conservation of wave energy.
 
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°íÀ¯ÇÔ¼ö Àü°³¹ý;¹Ý»çÀ²;¼Ò¸êÆÄ;ȸÀý;eigenfunction expansion method;reflection coefficient;evanescent modes;diffraction;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.32, no.6, 1999³â, pp.675-683
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911920063392)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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