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Çѱ¹¼öÀÚ¿øÇÐȸ / v.37, no.11, 2004³â, pp.949-958
»ç°¢ÇüÇü»ó ºÒÅõ°ú¼º ¼öÁõ¹æÆÄÁ¦¿¡ ÀÇÇÑ ºÒ±ÔÄ¢ÆÄÀÇ º¯Çü
( Transformation of Irregular Waves due to Rectangular Submerged Non-porous Breakwaters )
ȲÁ¾±æ;À̽ÂÇù;Á¶¿ë½Ä; ÇѾç´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;ÇѾç´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;ÇѾç´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â »ç°¢ÇüÇü»ó ¼öÁß¹æÆÄÁ¦¿¡ ÀÇÇÑ ºÒ±ÔÄ¢ÆÄÀÇ ¹Ý»ç¿¡ ´ëÇÏ¿© ¼ö¸®¸ðÇü½ÇÇè°ú ¼öÄ¡¸ðÇü½ÇÇèÀ» ¼öÇàÇÑ ÈÄ ½ÇÇè°á°ú¸¦ ºñ±³ÇÏ¿´´Ù. ¼öÄ¡ÇØ¼® ¸ðÇü¿¡¼­´Â Reynolds ¹æÁ¤½ÄÀ» Áö¹è¹æÁ¤½ÄÀ¸·Î »ç¿ëÇÏ°í ³­·ùÇØ¼®À» À§ÇØ k-$varepsilon$¸ðµ¨À» Àû¿ëÇÏ¿´À¸¸ç, ÀÚÀ¯¼ö¸éº¯À§¸¦ ÃßÀûÇϱâ À§ÇØ VOF±â¹ýÀ» »ç¿ëÇÏ¿´´Ù. ¼ö¸®¸ðÇü½ÇÇè°ú ¼öÄ¡¸ðÇü½ÇÇèÀÇ °á°ú´Â ¼­·Î Àß ÀÏÄ¡ÇÏ¿´À¸¸ç, ¼öÁß¹æÆÄÁ¦ÀÇ ¹è¿­ÀÌ Áõ°¡ÇÔ¿¡ µû¶ó ¹Ý»çÀ²Àº Áõ°¡ÇÏ¿´´Ù.
A combined experimental and numerical effort is presented for investigation of reflection of irregular waves due to rectangular submerged breakwaters. In the numerical model, the Reynolds equations are solved by a finite difference method and k-$varepsilon$ model is employed for the turbulence analysis. To track the free surface displacement, the volume of fluid method is employed. Numerical predictions of transmission and reflection coefficients are verified by comparing to laboratory measurements. Very reasonable agreements are observed. The reflection coefficients become stronger in proportion to numbers of submerged breakwaters.
 
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ºÒ±ÔÄ¢ÆÄ;¹Ý»çÀ²;Åë°úÀ²;ºÒÅõ°ú¼º ¼öÁß¹æÆÄÁ¦;VOF ±â¹ý;k-$varepsilon$ ¹æÁ¤½Ä;irregular wave;reflection coefficient;transmission coefficient;submerged non-porous breakwaters;VOF method;k-$varepsilon$ equations;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.37, no.11, 2004³â, pp.949-958
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200412910510416)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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ȸ»ç¼Ò°³ ±¤°í¾È³» ÀÌ¿ë¾à°ü °³ÀÎÁ¤º¸Ãë±Þ¹æÄ§ Ã¥ÀÓÀÇ ÇѰè¿Í ¹ýÀû°íÁö À̸ÞÀÏÁÖ¼Ò ¹«´Ü¼öÁý °ÅºÎ °í°´¼¾ÅÍ
   

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