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Çѱ¹¼öÀÚ¿øÇÐȸ / v.26, no.4, 1993³â, pp.97-105
°ü·Î¸¦ ÅëÇÏ¿© ¼ö¼ÛµÇ´Â ¿øÅëÇü ĸ½¶ÀÇ °Åµ¿¿¡ ´ëÇÏ¿© ĸ½¶¹ÐµµÀÇ ±ÕÀϼºÀÌ ¹ÌÄ¡´Â ¿µÇâ
( The Effects of the Capsule Density Uniformity on the Behavior of Cylindrical Capsules Transported through a Pipeline )
À̰æÈÆ; Àü³²´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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º» ³í¹®Àº ĸ½¶¹ÐµµÀÇ ±ÕÀϼºÀÇ ¿µÇâÀ» °í·ÁÇÏ¿© °ü·Î³»¿¡¼­ÀÇ ¿øÅëÇü ĸ½¶ È帧ÀÇ Æ¯¼ºÀ» ÀÌÇØÇϱâ À§ÇÏ¿© ¼öÇàµÈ ¿¬±¸°á°ú¸¦ ±â¼úÇÑ´Ù. ĸ½¶ÀÇ Á᫐ Ãà¹æÇâÀ¸·ÎÀÇ ¹Ðµµº¯È­ ¿µÇâÀ» ½ÇÇèÀûÀ¸·Î³ª ºÐ¼®ÀûÀÎ ¹æ¹ýÀ¸·Î ¿¬±¸ÇÏ¿´´Ù. ½ÇÇèÀº Á÷°æ 190mm, ±æÀÌ 17mÀÎ °ü¿¡¼­ ¼öÇàµÇ¾úÀ¸¸ç, ¼Óµµ, ĸ½¶ÀÇ ±â¿ï±â, ĸ½¶¹Ù´Ú°ú °ü°úÀÇ °£°ÝÀÌ ¿©·¯ °¡Áö ½ÇÇè Á¶°ÇÇÏ¿¡¼­ ÃøÁ¤µÇ¾ú´Ù. ½ÇÇèµ¥ÀÌŸ¸¦ ÇØ¼®Çϱâ À§ÇÏ¿© ¹«Â÷¿ø º¯¼ö·Î ÁÖ¾îÁö´Â ¾ÈÁ¤¼ºÁö¼ö(Stability Index)°¡ À¯µµµÇ¾ú´Ù. °ü·Î¿¡¼­ÀÇ Ä¸½¶ÀÇ °Åµ¿Àº ¾ÈÁ¤¼º Áö¼ö¿¡ Å©°Ô ¿µÇâÀ» ¹Þ´Â´Ù. ½ÇÇè°á°ú´Â ¾ÈÁ¤¼º Áö¼ö°¡ ĸ½¶°Åµ¿°ú ĸ½¶¹ÐµµÀÇ ±ÕÀϼº°úÀÇ »ó°ü°ü°è¸¦ Àß ¼³¸íÇÏ¿©ÁÖ´Â À¯È¿ÇÑ ±âÁØÀÓÀ» Áõ¸íÇÏ¿´´Ù.
This paper presents the results of a study conducted to improve the understanding of the characteristics of cylindrical capsule flow in a pipeline by taking into account of the effect of capsule density uniformity. The effect of capsule density variation in the axial direction was studied both experimentally and anaytically. The experiments were conducted in a 190mm diameter straight pipe 17m long. The velocity, gap and tilt of capsules were measured under various conditions, In order to interpret the data on various capsule density conditions, the stability index given in the dimensionless number was introduced. The motion of capsules in pipelines is strongly affected by the stability of the capsules characterized by the stability index. The experiments conducted prover that the stability index is a valid criterion for explaining and correlating data on the capsule motion and the capsule density uniformity.
 
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.26, no.4, 1993³â, pp.97-105
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199311920094693)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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