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Çѱ¹¼öÀÚ¿øÇÐȸ / v.25, no.3, 1992³â, pp.65-77
ºñÆ÷È­ È帧¿¡¼­ ¸ð¼¼°ü ÀÌ·ÂÇö»ó ¸ðÇüÀÇ °íÂû : State of The Art
( Capillary Hysteresis Model in Unsaturated Flow : State of The Art )
¹Úâ±Ù;¼±¿ìÁßÈ£; ¼­¿ï´ëÇб³ Åä¸ñ°øÇаú ¹Ú»ç°úÁ¤ ¼ö·á;¼­¿ï´ëÇб³ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸ÀÇ ¸ñÀûÀº ±âÁ¸¿¡ ¹ßÇ¥µÈ ÀÌ·ÂÇö»ó ¸ðÇüµéÀ» ºÐ·ùÇÏ¿© °¢ ¸ðÇüµéÀÇ Æ¯Â¡À» ºñ±³ÇÏ°í »õ·Î¿î ÀÌ·ÂÇö»ó ¸ðÇüÀÇ ÇüÅ¿¡ ´ëÇØ ³íÇϰíÀÚ ÇÑ´Ù. ±âÁ¸¿¡ ¹ßÇ¥µÈ ÀÌ·ÂÇö»ó ¸ðÇüÀº ³»»ð¸ðÇü, Ãàô¸ðÇü°ú ¿µ¿ª¸ðÇüÀ¸·Î ´ëº°µÇ¸ç, ±×Áß ¿µ¿ª¸ðÇü¸¸ÀÌ ÀÌ·ÐÀû ¹è°æÀ» °¡Áö°í ÀÖ´Ù. ¸ðÇüÀÇ º¸Á¤À» À§ÇØ ÇÑ °³ÀÇ ÁÖ°î¼±ÀÇ ÀÚ·á°¡ ÇÊ¿äÇÑ ±âÁ¸ÀÇ ¸ðÇüµéÀÇ Å¸´ç¼ºÀ» °ËÁõÇϱâ À§ÇÏ¾ß Rubicon Sandy Loam°ú Dune SandÀÇ ½ÇÃøÀÚ·á¿Í ºñ±³ÇÏ¿© º» °Ü·Ö, ÀÌµé ¸ðÇüµéÀº ½ÇÃøÀڷḦ Àß ¸ð»çÇÒ ¼ö ¾øÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. µû¶ó¼­ »õ·Î¿î ¸ðÇüÀÇ ÇüÅÂÀÇ °¡´É¼ºÀ» Á¾¼Ó¿©¿ª¸ðÇü¿¡¼­ ãÀ»¼ö ÀÖÀ¸¸ç, Á¾¼Ó¿µ¿ª¸ðÇüÁÖ¿¡¼­µµ ¼ø¼öÇÑ ¸Åü¿¡ ´ëÇØ °ø±ØÀ¸·Î °ø±âÀÇ ÁøÀÔ¿¡ ´ëÇÑ ÀÌ¿ôÇÏ´Â °ø±ØµéÀÇ ¹æÇØÈ¿°úÀÇ Á¤µµ¸¦ ¼³¸íÇÏ´Â °¡ÁßÄ¡¸¦ µµÀÔÇÑ ¸ðÇü(Model III-1, Mualem, 1984)À» ´Ü¼øÈ­½Ã۱â À§ÇØ ÀÌ ¸ðÇü¿¡ ÀûÀýÇÑ °¡Á¤À» ºÎ°¡ÇÑ ÇüÅÂÀÇ ¸ðÇüÀÌ »õ·Î¿î ÇüÅÂÀÇ ¸ðÇü¿¡ ´ëÇÑ ÇϳªÀÇ ´ë¾ÈÀÌ µÉ ¼ö ÀÖÀ½À» º» ¿¬±¸´Â Á¦½ÃÇϰí ÀÖ´Ù.
The purpose of this study is to analyse existing hysteresis models and to propose a new type of model. The existing hysteresis models are classified by three types: interpolation model, scaling model and domain model, of which the domain model is based on the theoretical approach. Models which need one branch of hysteresis loop for calibration are developed based on the independent domain concept, however, they are not successful to accurately simulate the real data and Rubicon Sandy Loam and Dune Sand. There is a possibility that a new model is based on the dependent domain model considering the pore blockage effect against air entry for homogeneous porous media(modelIII-1, Mualem, 1984). Concludingly, a new type of hysteresis model is proposed by simplifying ModelIII-1 using a proper assumption.
 
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.25, no.3, 1992³â, pp.65-77
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199211920094123)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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ȸ»ç¼Ò°³ ±¤°í¾È³» ÀÌ¿ë¾à°ü °³ÀÎÁ¤º¸Ãë±Þ¹æÄ§ Ã¥ÀÓÀÇ ÇѰè¿Í ¹ýÀû°íÁö À̸ÞÀÏÁÖ¼Ò ¹«´Ü¼öÁý °ÅºÎ °í°´¼¾ÅÍ
   

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