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Çѱ¹¼öÀÚ¿øÇÐȸ / v.38, no.11, 2005³â, pp.973-984
¾ÈÁ¤¼ºÃþ·ù¿¡¼­ ¼±ÅÃÃë¼öÀÇ ¼öÄ¡ÇØ¼®
( Numerical Simulation of Selective Withdrawal in Stably Stratified Flows )
¹éÁßö; Á¶Áö¾Æ°ø´ë Åä¸ñȯ°æ°øÇаú;
 
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3Â÷¿ø ¿­µ¿¼ö¿ªÇÐ ¸ðÇüÀ» °³¹ßÇÏ¿© ÁöÇüÇÐÀûÀ¸·Î º¹ÀâÇÑ ÀÚ¿¬ Àú¼öÁö¿¡¼­ ¾ÈÁ¤ÇÑ ¼ºÃþ·ùÀÇ ¼±Åà Ãë¼ö¸¦ ºÎÁ¤·ù ¸ðÀÇÇÏ¿´´Ù. Áö¹è¹æÁ¤½ÄÀº 2Â÷ Á¤È®µµÀÇ À¯ÇÑüÀû¹ýÀ» ÀÌ¿ëÇÏ¿© ÇØ¼®ÇÏ¿´´Ù. °³¹ßµÈ ¼öÄ¡¸ðÇüÀ» 3Â÷¿ø ³­·ù, ¼ºÃþÈ­µÈ Àü´ÜÃþÈ帧¿¡ Àû¿ëÇÏ¿© °ËÁ¤À» ÇÏ¿´´Ù. ¼öÄ¡ÇØ¼®°á°ú´Â ½ÇÇè½Ç¿¡¼­ °üÃøµÈ ¼±ÅÃÃë¼ö½ÃÀÇ ¼Óµµ ¹× ¿ÂµµºÐÆ÷ÀÇ ÀϹÝÀûÀÎ Çü»óÀ» ¾çÈ£ÇÏ°Ô ¿¹ÃøÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸³ª, ÀÚ¿¬ Àú¼öÁö¿¡¼­ÀÇ È帧¿¡ ´ëÇÑ Àû¿ë½Ã¿¡´Â ¼ÓµµÀÇ Å©±â¸¦ °ú´ë¸ðÀÇ ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¼öÄ¡¸ðÀÇ¿¡¼­ ±¸ÇØÁø ¼±ÅÃÃë¼öÀÇ ¹°¸®Àû Ư¼ºÀ» ³íÇÏ¿´´Ù.
A three-dimensional thermal hydrodynamic model is developed for carrying out unsteady simulation of the selective withdrawal of the stably stratified flow in a geometrically complex, natural reservoir The governing equations are discretized on a non-staggered grid using a second-order accurate, finite-volume scheme. The numerical model is validated by applying it to simulate three-dimensional, turbulent, stratified, shear-layer flow case. The numerical predictions appear to capture reasonably well the general shape of velocity and temperature profiles observed in the laboratory experiments, while significant overestimation of the magnitude of velocity profiles is observed in the application to the flow in a natural reservoir. The physics of selective withdrawal as emerge from the numerical simulations are also discussed.
 
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3Â÷¿ø;¿­µ¿¼ö¿ªÇÐ ¸ðÇü;¼±ÅÃÃë¼ö;¼ºÃþ·ù;Àü´Ü·ù;three-dimensional;thermal hydrodynamic model;selective withdrawal;stratified flow;shear flow;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.38, no.11, 2005³â, pp.973-984
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200507523361040)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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