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Çѱ¹¼öÀÚ¿øÇÐȸ / v.33, no.1, 2000³â, pp.111-121
¼öÄ¡¸ðÇü¿¡ ÀÇÇÑ ¸¸°î¼ö·ÎÀÇ È帧 ¹× ÇÏ»ó Æ¯¼º ºÐ¼®
( An Analysis of the Flow and Bed Topography Characteristics of Curved Channels with Numerical Model )
Á¤Àç¿í;ÇÑÁ¤¼®;À±¼¼ÀÇ; ±¹¸³¹æÀ翬±¸¼Ò;°æ±â´ëÇб³ ´ëÇпø;°æ±â´ëÇб³ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ¿¬¼Ó¹æÁ¤½Ä, ¿îµ¿·®¹æÁ¤½Ä, 2Â÷È帧ÀÇ ¿¬Á÷ºÐÆ÷½Ä, Ⱦ¹æÇâ ÇÏ»ó°æ»ç½Ä µîÀ» ÀÌ¿ëÇÏ¿© ´ÜÀϸ¸°î¼ö·Î »Ó¸¸ ¾Æ´Ï¶ó ¿¬¼Ó¸¸°î¼ö·Î¿¡¼­ È帧Ư¼º°ú Çϻ󺯵¿À» ºÐ¼®ÇÒ ¼ö ÀÖ´Â ¼öÄ¡¸ðÇüÀ» °è»êÇÏ¿´´Ù. ´ÜÀϸ¸°î¼ö·Î¿¡¼­´Â È帧Ư¼ºÄ¡¿Í Çϻ󺯵¿À» ½ÇÇèÄ¡¿Í ºñ±³ÇÏ¿´À¸¸ç, ¿¬¼Ó¸¸°î¼ö·Î¿¡¼­´Â ÃÖ´ëÀ¯¼ÓÀÇ À̵¿°æ·Î¸¦ Vadnal ¼öÄ¡¸ðÇüÀÇ °è»êÄ¡, ChangÀÇ ½ÇÇèÄ¡¿Í ºñ±³ÇÏ¿© ¸¸Á·ÇÒ ¸¸ÇÑ °á°ú¸¦ ¾ò¾ú´Ù. Á߽ɰ¢ $180^{circ}$ ÀÎ À¯·Î¸¸°îºÎ¿¡¼­ °íÁ¤»ó ¹× À̵¿»óÀÇ Á¶°ÇÀ¸·Î ½ÇÇèÀ» ½Ç½ÃÇÏ¿´À¸¸ç, ÇÏ»óÀç·á·Î´Â ¸ð·¡¿Í ¾ÈÆ®¶ó½ÎÀÌÆ®¸¦ ¼±ÅÃÇÏ¿´´Ù. ¸ð·¡¿Í ¾ÈÆ®¶ó½ÎÀÌÆ®ÀÇ °æ¿ì¿¡µµ ½ÇÇèÄ¡¿Í °è»êÄ¡°¡ ºñ±³Àû ÀÏÄ¡Çϰí À־ ÇÏ»óÀç·á°¡ º¯È­µÇ´Â À¯·Î¸¸°îºÎ¿¡¼­µµ ¼öÄ¡¸ðÇüÀÇ Àû¿ë¼ºÀ» È®ÀÎÇÏ¿´´Ù. ÀÌ ¿¬±¸´Â À¯·Î¸¸°îºÎÀÇ ¼³°è, ½Ã°ø, À¯Áö ¹× °ü¸® µî¿¡ ÇÊ¿äÇÑ È帧Ư¼º°ú Çϻ󺯵¿¿¡ °üÇÑ ±âÃÊÀڷḦ Á¦°øÇÒ °ÍÀ¸·Î »ý°¢µÈ´Ù.
A numerical model which can analyze the flow and bed topography characteristics of a single bend and continuous one was suggested using the equations of mass, momentum, the vertical distribution of secondary flow, and the transverse bed slope. The calculated flow and bed topography characteristic values were compared with the experimental data in a single bend, and the predicted path of maximum streamwise velocity in continuous bends also compared with the Vadnal and Chang's data. The comparisons gave good results. A curved channel with 180 degrees was used. Sand and anthracite were selected as bed materials in the movable bed experiments. The model application of this model to the sand bed and the anthracite one accorded well with the observed values in the experiments. This model was proved to be useful for predicting the flow and bed topography with the change of bed materials. The results of this research could be used to construct and control curved channels as a fundamental information.mation.
 
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À¯·Î¸¸°îºÎ;ÇÏ»óÀç·á;ÃÖ´ë¼¼±¼½É;¼öÄ¡¸ðÇü;¿¬¼Ó¸¸°î¼ö·Î;curved channel;bed material;maximum scour depth;numerical model;continuous band;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.33, no.1, 2000³â, pp.111-121
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920063542)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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