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Çѱ¹¼öÀÚ¿øÇÐȸ / v.33, no.1, 2000³â, pp.39-50
µ¿¼ö¿ªÇиðÇüÀÇ ¸Å°³º¯¼ö »êÁ¤
( Evaluation of Parameters in Hydrodynamic Model )
À±ÅÂÈÆ;ÀÌÁ¾¿í;Á¦°¥¼±µ¿; ÇѾç´ëÇб³ Åä¸ñ°øÇаú;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿øÈ¯°æ¿¬±¸ºÎ;(ÁÖ)±ÝÈ£¿£Áö´Ï¾î¸µ ¼öÀÚ¿øºÎ;
 
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ÀϹÝÀûÀ¸·Î µ¿¼ö¿ªÇÐ ¸ðÇüÀº ¸¶ÂûÀÎÀÚ(Á¶µµ°è¼ö ¶Ç´Â Chezy°è¼ö)¿Í ¿ÍÁ¡¼º°è¼ö¸¦ ÇÊ¿ä·Î ÇÏ°í ¼öÄ¡°è»ê¿¡¼­ ÀÌµé °è¼öÀÇ °©Àº Åë»ó °¡Á¤ ¶Ç´Â ¹Ýº¹°è»êÀ» ÅëÇÏ¿© °áÁ¤µÈ´Ù. ¼öÄ¡¸ðÇü¿¡¼­ ¿ÍÁ¡¼º°è¼ö´Â ¹°¸®ÀûÀÎ È®»ê»Ó¸¸ ¾Æ´Ï¶ó ¼öÄ¡Á¡¼ºÀÇ È¿°úµµ °¡Áö°í À־ ¼öÄ¡°è»êÀÇ ¾ÈÁ¤¼º¿¡ ¿µÇâÀ» ¹ÌÄ¡¹Ç·Î ÀÌµé °è¼öÀÇ ÀϰüµÈ °áÁ¤¹æ¹ýÀÌ ÇÊ¿äÇÏ´Ù. ¼öÀ§ ¹× À¯·®ÀÚ·á, 1Â÷¿ø ¸ðÇüÀÎ HEC-2¿Í NETWORK, 2Â÷¿ø ¸ðÇüÀÎ SMS¸¦ ÀÌ¿ëÇÏ¿© ÇѰ­ÇÏ·ù ±¸°£¿¡ ´ëÇÑ Á¶µµ°è¼öÀÇ »êÁ¤°á°ú¿Í ¿ÍÁ¡¼º °è¼öÀÇ »êÁ¤½ÄÀÌ Á¦½ÃµÇ¾úÀ¸¸ç ½ÇÃø¼öÀ§¿Í ºñ±³¸¦ ÅëÇØ °ËÁõµÇ¾ú´Ù.
Generally speaking, a hydrodynamic model needs a friction coefficient (Manning coefficient or Chezy coefficient) and eddy viscosity. For numerical solution the coefficients are usually determined by recursive calculations. The eddy viscosity in numerical model plays physical diffusion in flow and also acts as numerical viscosity. Hence its value has influence on the stability of numerical solution and for these reasons a consistent evaluation procedure is needed. By using records of stage and discharge in the downstream reach of the Han river, I-D models (HEC-2 and NETWORK) and 2-D model (SMS), estimated values of Manning coefficient and an empirical equation for eddy viscosity are presented. The computed results are verified through the recorded flow elevation data.n data.
 
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ÀԷ¸Ű³º¯¼ö;Á¶µµ°è¼ö;¿ÍÁ¡¼º°è¼ö;¼öÀ§;µ¿¼ö¿ªÇÐ ¸ðÇü;input parameter;roughness coefficieent;eddy viscosity;water surface elevation;hydrodynamic model;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.33, no.1, 2000³â, pp.39-50
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920063490)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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