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Çѱ¹¼öÀÚ¿øÇÐȸ / v.43, no.1, 2010³â, pp.41-49
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°è´ÜÇü º¸ ÇÏ·ù È帧Ư¼º°ú Wave Type Flow¿¡ °üÇÑ ½ÇÇ迬±¸
( Experimental Study on Flow Characteristic and Wave Type Flow at Downstream of Stepped Weir ) |
| °Áر¸;¿©È«±¸;À̱ÝÂù;ÃÖ³²Á¤; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ÇÏõ, ÇØ¾ÈÇ׸¸¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ÇÏõ, ÇØ¾ÈÇ׸¸¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ÇÏõ, ÇØ¾ÈÇ׸¸¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ÇÏõ, ÇØ¾ÈÇ׸¸¿¬±¸½Ç;
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| º» ¿¬±¸ÀÇ °è´ÜÇü º¸´Â ÀÚ¿¬Çü Ⱦ´Ü ±¸Á¶¹°ÀÇ ÇÑ ÇüÅ·ΠÁ¦¾ÈµÇ°í ÀÖ´Ù. °è´ÜÇü º¸ ÇÏ·ù¿¡¼ÀÇ È帧Àº ±âÁ¸ º¸(Round Crest Weir)¿¡¼ ¹ß»ýÇÏ´Â µµ¼ö¿Í ´Þ¸® WTF(Wave Type Flow)¶ó´Â µ¶Æ¯ÇÑ È帧ÀÌ ¹ß»ýÇÑ´Ù. WTF´Â °è´ÜÇü º¸ ÇÏ·ù¿¡¼ ´ÜÂ÷·Î ÀÎÇØ ¹ß»ýµÇ´Â Àç¼øÈ¯¿µ¿ª(recirculation area)ÀÌ ÀÏÁ¤Á¶°Ç¿¡¼ ¹ß´ÞÇÏ¿© ¼ö¸éÀ» »ó½Â½ÃŰ´Â Çö»óÀÌ´Ù. WTF Á¶°Ç¿¡¼ÀÇ ÆÄ°í´Â ÇÏ·ù¼öÀ§(tailwater level) º¸´Ù ³ô¾ÆÁö°í WTF ±¸°£¿¡¼ÀÇ ÃÖ´ëÀ¯¼Ó¹ß»ýÀÌ ¼ö¸é¿¡ °¡±î¿î °÷¿¡¼ ¹ß»ýÇÑ´Ù. ÀÌ¿Í °°Àº °á°ú´Â WTF Çö»óÀÌ ¼³°è ½Ã Á¢Çպο¡ ¿µÇâÀ» ÁÙ ¼ö ÀÖ´Â Áß¿ä ÀÎÀÚÀÓÀ» ³ªÅ¸³»´Â °ÍÀÌ´Ù. º» ¿¬±¸´Â ¼ö¸®½ÇÇèÀ» ÅëÇØ WTFÀÌ ¹ß»ýµÇ´Â ¼ö¸®Á¶°Ç°ú WTFÀÇ ±Ô¸ð¸¦ ÆÄ¾ÇÇÏ¿´°í °è´ÜÇü ÇÏ·ùÈ帧Á¶°Ç¿¡ µû¸¥ À¯¼ÓºÐÆ÷¸¦ ºÐ¼®ÇÏ¿´´Ù. º» ¿¬±¸ÀÇ °á°ú´Â °è´ÜÇü º¸ ¼³°è ½Ã °í·ÁµÇÁö ¸øÇÑ ºÎºÐÀ¸·Î¼ Â÷ÈÄ¿¡ °è´ÜÇü ±¸Á¶¹° ¶Ç´Â °è´Ü½Ä º¯Çü ±¸Á¶¹° ¼³°è ½Ã ÁÖ¿ä ÀÚ·á·Î Ȱ¿ë µÉ °ÍÀÌ´Ù. |
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| Stepped weir of this study was suggested a type of natural type structures. Unique flow, such as Wave type flow, at downstream of mild slope stepped occurs. WTF(Wave type flow) is different with hydraulic jump occurred at Round crest weir. WTF is phenomenon to rise the water level by recirculation area occurred by step height at downstream of mild slope stepped. Wave height of WTF condition is higher than tailwater level and maximum velocity of WTF condition occurs in area of water surface. In this results, WTF presents to be important factor for design of join area of weir with levee. This study got and analyzed hydraulic condition occurred of WTF, scales of WTF and velocity profiles on flow patterns using experiments. WTF was not consider to stepped weir design and this results can be important data for design of stepped weir and structures. |
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| Ű¿öµå |
| °è´ÜÇü º¸;Àç¼øÈ¯¿µ¿ª;ÆÄ°í;Stepped weir;wave type flow;Recirculation area;Wave height; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.43, no.1, 2010³â, pp.41-49
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201005364710392)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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