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Çѱ¹¼öÀÚ¿øÇÐȸ / v.23, no.4, 1990³â, pp.445-457
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Ç¥¸é¿Â¹è¼ö ³·ù¸ðÇü
( Turbulence Models for the Surface Discharge of Heated Water ) |
| ÃÖÈï½Ä;À̱漺; ³ó¾îÃÌÁøÈï°ø»ç ³ó¾îÃÌ¿¬±¸¿ø(Ph.D.);¼¿ï´ëÇб³ °ø°ú´ëÇÐ ºÎ±³¼ö(Ph.D.);
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| ³·ù ¹× ºÎ·ÂÈ¿°ú°¡ °ÇÑ ¿Â¹è¼ö È®»êÀ» ¿¹ÃøÇϱâ À§ÇÏ¿© ³·ù¸ðµ¨À» ÀÌ¿ëÇÑ ¼öÄ¡¸ðµ¨ÀÇ °³¹ßÀÌ µÎµå·¯Áö°í ÀÖ´Ù. º» ¿¬±¸´Â Á¤Áö¼ö¿ªÀ¸·Î À¯ÀÔÇÏ´Â ¿Â¹è¼ö ¼öÄ¡¸ðµ¨À» °³¹ßÇÏ¿´´Ù. Reynolds ÀÀ·ÂÇ× ¹× ³·ù ¿ ÇÁ·°½ºÇ×ÀÇ Ã³¸®¸¦ À§ÇÏ¿© k-$varepsilon$³·ù¸ðµ¨¿¡ ¿ÂµµÀÚ½ÂÀ¯µ¿Ç×°ú ÀÌÀÇ °¨¼âÀ² Àü´Þ¹æÁ¤½ÄÀ» Ãß°¡ÇÑ 4-¹æÁ¤½Ä ³·ù¸ðµ¨À» ÀÌ¿ëÇÏ¿´´Ù. Áö¹è¹æÁ¤½ÄÀ» ºÎºÐÀûÀÎ Æ÷¹°ÇüÅÂÀÇ ÀüȯÀ» ÅëÇÑ ¼öÄ¡ÇØ¼®ÀÌ ÀÌ¿ëµÇ¾ú´Ù. °è»ê°á°ú´Â Pande µîÀÇ ½ÇÇè°á°ú¿Í ºñ±³Àû Àß ÀÏÄ¡ÇÏ¿´°í, McGuirk µîÀÇ 2-¹æÁ¤½Ä ³·ù¸ðµ¨¿¡ ÀÇÇÑ ÇØ¼®°á°ú¿Í ºñ±³ºÐ¼®ÇÏ¿´´Ù. ¾Æ¿ï·¯ °í¸® ¿øÀÚ·Â 1È£±â¿¡ÀÇ Àû¿ëÀ» ÅëÇÏ¿© º» ¸ðµ¨ÀÇ ½Ç¿ë¼º ¹× Ÿ´ç¼º ÀÔÁõÇÏ¿´´Ù. |
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| In order to predict the dispersion of a thermal discharge with strong turbulent and buoyant effects, the development of a numerical model using turbulence model and its application are significantly increased. In this study, a 3-dimensional steady-state model for the surface discharge of heated water into quiescent water body is developed. For the model closure of turbulent terms the 4-equation turbulence model is used. For economic numerical simulation, the elliptic governing equations are transformed to the partially parabolic equations. In general, the simulated results by the present model agree well to the experimental results by Pande and Rajaratnam. The model characteristics are presented in comparison with the predicted results of the 2-equation turbulence model by McGuirk and Rodi. Applying the 4-equation turbulence model to the Korea nuclear unit 1 at Kori site, feasibility and efficiency of the present model are validated. |
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.23, no.4, 1990³â, pp.445-457
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199011920093342)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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