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Çѱ¹¼öÀÚ¿øÇÐȸ / v.31, no.5, 1998³â, pp.529-538
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2Â÷¿ø ¼öÄ¡¸ðÇü¿¡ ÀÇÇÑ ÇÕ·ùÈ帧 ÇØ¼®
( Junction Flow Analyses by Twp-Dimensional Numerical Model ) |
| À±ÅÂÈÆ;Á¤ÀÇÅÃ;¹ÚÁ¾¼®; ÇѾç´ëÇб³ Åä¸ñ°øÇаú;Çѱ¹¼öÀÚ¿ø°ø»ç ¼³°è°èȹó;±ÝÈ£¿£Áö´Ï¾î¸µ(ÁÖ) ¼öÀÚ¿øºÎ;
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| °³¼ö·Î ÇÕ·ùºÎÀÇ È帧¾ç»óÀÌ 2Â÷¿ø ¼ö½ÉÀûºÐ ¼öÇÐÀû ¸ðÇü¿¡ ÀÇÇÏ¿© ÇØ¼®µÈ´Ù. ÇÕ·ùºÎ È帧¿¡ Áö¹èÀûÀÎ ¸Å°³º¯¼ö´Â Áö·ù¿Í ÇÕ·ùÈÄ À¯·®ÀÇ ºñ¿Í ÇÕ·ù°¢À¸·Î ³ªÅ¸³µ´Ù. À̵é ÀÎÀÚÀÇ Ç×À¸·Î ÇØ¼®µÇ´Â ´ë»óÀº ÇÕ·ùºÎ¿¡¼ È帧¾ç»ó°ú ¼ö½ÉÀÇ º¯È, º»·ù¿¡¼ ÇÕ·ùºÎ »ó·ùÈ帧ÀÌ ¿µÇâÀ» ¹Þ±â ½ÃÀÛÇÏ´Â À¯·®ºñ ¹× ¼øÈ¯¿µ¿ªÀÇ ±âÇÏÆ¯¼ºÀÌ´Ù. ¶ÇÇÑ ÇÕ·ùÇÏ·ù¿¡¼ È帧¼öÃà°ú Áö·ùÀÇ ±ÁÀ½°¢ÀÌ Á¶»çµÇ¾ú´Ù. ¼öÄ¡ÇØ¼®°á°ú´Â ±âÁ¸ ½ÇÇèÀÚ·á¿Í ºñ±³Àû Àß ¸Â´Â°ÍÀ¸·Î ³ªÅ¸³µ´Ù. Çٽɿë¾î : ÇÕ·ù, ¼øÈ¯¿µ¿ª, È帧¼öÃà, À¯·®ºñ, ÇÕ·ù°¢ |
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| The flow configurations at open channel junctions are analyzed by 2-D depth averaged mathematical model. The governing factors of the flow at the junction are found to be discharge ratio between tributary flow and the post confluence combined flow, and confluence angle. Analyzed by these two factors are flow patterns and flow depth variation at the confluence, discharge ratio above which the flow upstresm from the junction is affected by the tributary flow and the geometries of a recirculation region. Further, the flow contraction in the downstream region and the deflection of the tributary flow in the main channel were investigated. The numerical results are compared with the existing experimental data fairly well. Keywords : junction, recirculation region, flow contraction, discharge ratio, confluence angle |
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| ÇÕ·ù;¼øÈ¯¿µ¿ª;È帧¼öÃà;À¯·®ºñ;ÇÕ·ù°¢;junction;recirculation region;flow contraction;discharge ratio;confluence angle; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.31, no.5, 1998³â, pp.529-538
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811920101203)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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