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Çѱ¹¼öÀÚ¿øÇÐȸ / v.34, no.1, 2001³â, pp.57-65
°íÁ¤È®µµ ¼öÄ¡±â¹ýÀ» ÀÌ¿ëÇÑ ÇÏõ õÀÌ·ù ÇØ¼® II. : Àû¿ë
( Numerical Anslysis of Transcritical Flow in Open Channels Using High-Resolution scheme II. : Applications )
±è¿ø;ÇѰǿ¬; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿øÈ¯°æ¿¬±¸ºÎ;°æºÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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°³¼ö·Î¿¡¼­ ¹ß»ýÇϴ õÀÌ·ùÀÇ ÇØ¼®À» À§ÇØ °³¹ßÇÑ ¼öÄ¡¸ðÇüÀ» ¿©·¯ ÇüÅÂÀÇ ¼ö·Î¿¡ Àû¿ëÇÏ¿´´Ù. ±× µ¿¾È °³¹ßµÈ õÀÌ·ù ÇØ¼® ¸ðÇüÀº ÁÖ·Î ±ÕÀÏÇϵµ³ª °¡»óÇϵµ¸¦ ´ë»óÀ¸·Î °³¹ßµÇ¾î ´Ù¾çÇÑ ÇüÅÂÀÇ Çϵµ¿¡´Â Àû¿ëÇϱ⠰ï¶õÇÑ Á¡ÀÌ ÀÖ¾ú´Ù. º» ¿¬±¸¿¡¼­´Â 2Â÷ Á¤È®µµ À½ÇØÀû ENO ±â¹ýÀ» ÇÏ»ó ¹× ÇÏÆøÀÌ º¯È­ÇÏ´Â ´Ù¾çÇÑ ÇüÅÂÀÇ ºñ±ÕÀÏ Çϵµ¿¡¼­ ¹ß»ýÇϴ õÀÌ·ù¿¡ Àû¿ëÇÏ¿© ¸ðÇüÀÇ Á¤È®µµ¿Í ¾ÈÀü¼ºÀ» °ËÁõÇÏ¿´´Ù. ¶ÇÇÑ Á¤»ó·ù »óÅÂÀÇ ÃµÀÌ·ù »Ó¸¸ ¾Æ´Ï¶ó ºñÁ¤»ó·ù »óÅ¿¡¼­ ¹ß»ýÇϴ õÀÌ·ù¿¡µµ Àû¿ëÇÏ¿© ¸ðÇüÀ» °ËÁõÇÏ¿´´Ù. ¸ðÇüÀÇ Àû¿ë°á°ú ¼öÄ¡Áøµ¿ÀÇ ¹ß»ý¾øÀÌ Àü¹ÝÀûÀ¸·Î ¼öÀ§¿Í À¯¼Ó µî È帧À» Á¤È®ÇÏ°Ô °è»êÇÏ¿´À¸¸ç ƯÈ÷ µµ¼öÀÇ ¹ß»ýÀ§Ä¡, ºÒ¿¬¼Ó ±¸°£ÀÇ °è»ê µî¿¡¼­µµ ÁÁÀº °á°ú¸¦ ³ªÅ¸³»¾î °íÁ¤È®µµ ±â¹ýÀ¸·Î¼­ÀÇ Á¤È®µµ¿Í À½ÇعýÀ¸·Î¼­ÀÇ ¾ÈÁ¤¼ºÀ» °ËÁõÇÒ ¼ö ÀÖ¾ú´Ù.
A numerical model for analyzing transcritical flow in open channel is tested to various cases of channel shape. As the numerical models developed for transcritical flow until now mainly focused on the application to only prismatic or hypothetical channels, there are some restrictions to apply the nonprismatic channels. In this study, to verify the accuracy and stability of second-order implicit ENO scheme, the numerical model was applied to the channels which haute the varying channel bed and width. Also the numerical model was applied to unsteady flow as well as steady flow. The study shows that the numerical model provides good accuracy in the calculation of stage and velocity with no numerical oscillation, particularly in the calculation of hydraulic jump and discontinous flow Then the implicit ENO scheme demonstrated good accuracy as a high-resolution scheme and stability as an implicit scheme.
 
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ÇÏõ;õÀÌ·ù;ºñÁ¤»ó·ù;À½ÇØÇü ENO ±â¹ý;¸ðÇü°ËÁõ;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.34, no.1, 2001³â, pp.57-65
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111920730323)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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