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Çѱ¹¼öÀÚ¿øÇÐȸ / v.31, no.4, 1998³â, pp.459-467
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ºñ±ÕÁú ´Ù°ø¼º ¸ÅÁúÀÇ È¿À²Àû ÇØ¼® ¹æ¹ý
( Effective Method for Analysis of Heterogeneous Porous Media ) |
| ¹Úâ±Ù; °üµ¿´ëÇб³ Åä¸ñ°øÇаú;
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| À¯»ç¸ÅÁú°³³ä¿¡ ÀÇÇÏ¿© ºñ±ÕÁú ´Ù°ø¼º ¸ÅÁúÀ» ¼³¸íÇÒ ¼ö ÀÖ´Â ±âÁ¸ÀÇ ¹æ¹ýÀº ¹Ì½Ã ¹Ð·¯ »ó»ç(Mis), °Å½Ã ¹Ð·¯ »ó»ç(MaS)¿Í ¿þ¸¯ »ó»ç(WS)·Î ³ª´ ¼ö ÀÖ°í, ±×µé°£ÀÇ °ü°è´Â MiS ¡ø MaS¡ø WS(¡ø: subset)ÀÓÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. º» ¿¬±¸¿¡¼ Á¦¾ÈÇÑ ¹æ¹ýÀº WS¿¡¼ ÃàÀûº¯¼ö $alpha$=w ·Î °¡Á¤Çϰí ÇÔ¼ö·®À» Æ÷ȵµ ´ë½Å À¯È¿Æ÷ȵµ·Î ÃàÀûÇÑ °ÍÀÌ´Ù. ÀÌ ¹æ¹ýÀº °Ë»çÇØ¼®ÀÇ °üÁ¡¿¡¼ ÀϹݼºÀÌ °á¿©µÇÁö ¾Ê°í, ÃàÀûº¯¼ö $alpha$¸¸À¸·Î ºñ±ÕÁú ¸ÅÁúÀ» ¼³¸íÇÒ ¼ö ÀÖ´Ù. Áï =1($alpha$ÀÇ Æò±Õ°ª)ÀÎ ¸ÅÁúÀº ºñ±ÕÁú ¸ÅÁú¿¡ »óÀÀÇÏ´Â µî°¡¸ÅÁúÀ» ÀǹÌÇϰí, $alpha$ÀÇ Ç¥ÁØÆíÂ÷´Â ´Ù°ø¼º ¸ÅÁúÀÇ ºñ±ÕÁú Á¤µµ¸¦ ¼³¸íÇÑ´Ù. $alpha$>1ÀÎ ¸ÅÁúÀÇ Æ¯¼ö°è¼ö´Â µî°¡¸ÅÁúÀÇ Åõ¼ö°è¼öº¸´Ù Å©¸ç ¶ÇÇÑ À¯È¿ÇÔ¼ö·®Àº $alpha$>1ÀÎ ¸ÅÁú¿¡¼ Å©°Ô ³ªÅ¸³´Ù. À̿Ͱ°Àº $alpha$ÀÇ ¼ºÁúÀ» ÀÌ¿ëÇÏ¿© °¡»óÀûÀÎ ¿©Á÷ 1Â÷¿ø ºñ±ÕÁú ´Ù°ø¼º ¸ÅÁúÀ» ³¼ö ¹ß»ý±â¹ýÀ¸·Î »ý¼ºÇÏ¿´´Ù. |
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| The existing methods to analyze the heterogeneous porous media based on the similar media concept are the microscopic Miller similitude(MiS), the macroscopic Miller similitude(MaS) and the Warrick similitude(WS). The inter-relationship is found such that MiS ¡ø MaS ¡ø (¡ø:subset). The proposed method is based ont eh assumption that the scale variables $alpha$=w and the moisture content is dimensionless by introducing the effective degree of saturation instead of the degree of saturation into WS. The method, without the loss of generality in view of the inspectional analysis, can explain the heterogeneity of the media by using the scale variable $alpha$ only. The media of $alpha$=1 (average of $alpha$) means the equivalent media corresponding to the heterogeneous media, while the standard deviation of $alpha$ may explain the degree of the heterogeneity of the media under consideration. The hydraulic conductivity of the media with $alpha$>1 is greater than that of the equivalent media, and the effective moisture content of the media with $alpha$>1 is also greater. Based on these properties of the scale variable $alpha$, the ideal vertical one-dimensional heterogeneous porous media is generated by using the technique of random number generation. |
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| À¯»ç¸ÅÁú;ºñ±ÕÁú ´Ù°ø¼º ¸ÅÁú;Ãàôº¯¼ö;µî°¡¸ÅÁú;³¼ö¹ß»ý±â¹ý;heterogeneous porous media;similar media concept;scale variable;equivalent media;random number generation; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.31, no.4, 1998³â, pp.459-467
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811920101143)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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