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Çѱ¹¼öÀÚ¿øÇÐȸ / v.34, no.6, 2001³â, pp.651-657
°è´ÜÁöÇüÀ» Áö³ª´Â ÆÄ±º¿¡ ÀÇÇÑ ÀåÆÄÀÇ »ý¼º: Áö¹è¹æÁ¤½Ä
( Long Waves Generated by Short Wave Groups over a Step: Governing Equations )
Á¶¿ë½Ä; ÇѾç´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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º» ³í¹®¿¡¼­´Â ´ÜÆÄÀÇ ÆÄ±ºÀÌ °è´ÜÇü ÁöÇüÀ» Åë°úÇÒ ¶§ ¹ß»ýÇÏ´Â 2Â÷ ÀåÆÄ¸¦ ÀÌ·ÐÀûÀ¸·Î ¿¬±¸ÇÏ¿´´Ù. ¸ÕÀú, ¼ö½É º¯È­¿¡ ÀÇÇÑ ´ÜÆÄÀÇ È¸ÀýÀ» ÇØ¼®ÇÏ¿´À¸¸ç, ´Ùº¯¼ö ¼·µ¿¹ýÀ» ÀÌ¿ëÇÏ¿© 2Â÷ ÀåÆÄÀÇ Áö¹è¹æÁ¤½ÄÀ» À¯µµÇÏ¿´´Ù. 2Â÷ ÀåÆÄ ¹æÁ¤½ÄÀ» ÇØ¼®ÇÏ¿© ¼­·Î ´Ù¸¥ ¼Óµµ·Î ÁøÇàÇÏ´Â ÀÚÀ¯ÀåÆÄ¿Í ±¸¼ÓÀåÆÄ°¡ ¹ß»ýÇÔÀ» º¸¿´´Ù.
The second-order long waves generated by short wave groups propagating over a step are theoretically investigated. The diffraction of short waves is firstly formulated and the governing equations of second-order long waves are then derived by using a multiple-scale perturbation method. It is observed that free and locked long waves are generated and propagated with different velocities.
 
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ÆÄ±º;°è´ÜÁöÇü;2Â÷ ÀåÆÄ;ȸÀý;¼·µ¿¹ý;wave group;step;second-order long wave;diffraction;perturbation method;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.34, no.6, 2001³â, pp.651-657
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111920877709)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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