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Çѱ¹¼öÀÚ¿øÇÐȸ / v.37, no.11, 2004³â, pp.889-896
ÇÏõ ¿À¿°¹°ÁúÀÇ ¸ðÀǸ¦ À§ÇÑ ÇÁ·¢Å» À̼ÛÈ®»ê¹æÁ¤½ÄÀÇ ÇØ¼®Àû À¯µµ
( The Analytical Derivation of the Fractal Advection-Diffusion Equation for Modeling Solute Transport in Rivers )
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ÇÁ·¢Å» À̼ÛÈ®»ê¹æÁ¤½ÄÀº Á¤¼ö Â÷¼öÀÇ ¹ÌºÐ¿¬»êÀÚ·Î ±¸¼ºµÈ °íÀüÀûÀÎ À̼ÛÈ®»ê¹æÁ¤½Ä°ú ºñ±³ÇÏ¿© ÇÁ·¢Å» Â÷¼öÀÇ ¹ÌºÐ¿¬»êÀÚ·Î ±¸¼ºµÈ º¸´Ù »óÀ§°³³äÀÇ ¹æÁ¤½ÄÀ¸·Î½á Á¤ÀǵȴÙ. Áö±Ý±îÁöÀÇ ÇÁ·¢Å» À̼ÛÈ®»ê¹æÁ¤½ÄÀº Ãß°èÇÐÀûÀÎ ±â¹ýÀ» µ¿¿øÇÏ¿© Ǫ¸®¿¡-¶óÇÃ¶ó½º °ø°£¿¡¼­ ÁÖ·Î ÇØ¼®µÇ¾úÀ¸³ª, º» ¿¬±¸¿¡¼­´Â ½ÇÁ¦ °ø°£¿¡¼­ À¯ÇÑÂ÷ºÐ°³³äÀ» µµÀÔÇÏ¿© º¸´Ù Á÷Á¢ÀûÀ¸·Î ÇÏõ¿¡¼­ÀÇ ¿À¿°¹° À̼ÛÈ®»ê¿¡ °üÇÑ Áö¹è¹æÁ¤½ÄÀ» À¯µµÇÏ¿´´Ù. ÀÌ·¯ÇÑ °³³äÀÇ À¯µµ¹æ¹ýÀº ÇÁ·¢Å» Â÷¼ö ¹× °ü·Ã È®»ê°è¼öÀÇ ¹°¸®ÀûÀÎ ÃßÁ¤¿¡ °üÇÑ ½Ç¸¶¸®¸¦ Á¦°øÇÒ ¼ö ÀÖ´Ù. °íÀüÀûÀÎ À̼ÛÈ®»ê¹æÁ¤½Ä°ú´Â ´Þ¸® ÇÁ·¢Å» À̼ÛÈ®»ê¹æÁ¤½ÄÀº ½ÇÁ¦ ÇÏõ¿¡¼­ °üÃøµÇ´Â ¿À¿°¹°ÀÇ ½Ã°£-³óµµ ºÐÆ÷°î¼±ÀÇ ¿Ö°îÇö»ó°ú ºÐÆ÷°î¼±ÀÇ ÀüÈĹæºÎ ³óµµ¸¦ º¸´Ù ½ÇÁ¦¿¡ °¡±õ°Ô ¸ðÀÇÇÒ ¼ö ÀÖÀ» °ÍÀ¸·Î ±â´ëµÇ¾îÁø´Ù.
The fractal advection-diffusion equation (ADE) is a generalization of the classical AdE in which the second-order derivative is replaced with a fractal order derivative. While the fractal ADE have been analyzed with a stochastic process In the Fourier and Laplace space so far, in this study a fractal ADE for describing solute transport in rivers is derived with a finite difference scheme in the real space. This derivation with a finite difference scheme gives the hint how the fractal derivative order and fractal diffusion coefficient can be estimated physically In contrast to the classical ADE, the fractal ADE is expected to be able to provide solutions that resemble the highly skewed and heavy-tailed time-concentration distribution curves of contaminant plumes observed in rivers.
 
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À̼ÛÈ®»ê¹æÁ¤½Ä;À¯ÇÑÂ÷ºÐ;ÇÁ·¢Å»;¼öÁú¸ðÇü;advection-diffusion equation;finite difference;fractal;water quality model;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.37, no.11, 2004³â, pp.889-896
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200412910510135)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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