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Your route to this page : Press Room & Events>> Dynamics >>17

 

 

 

 

 

 

 Caterpillar moves the earth with STAR-CD  

caterpillar»ç´Â °Å´ëÇÑ Earth-Moving Vehicles¸¦ Æ÷ÇÔÇÏ¿© °Ç¼³ ¹× 䱤»ê¾÷¿¡ ÇÊ¿äÇÑ Àåºñ¸¦ »ý»êÇÏ´Â ºÐ¾ß¸¦ ÁÖµµÇϴ ȸ»çÀÔ´Ï´Ù. ±â°è°¡ Á¡Á¡ ´õ Ä¿Áö°í º¹ÀâÇØÁ®°¥¼ö·Ï, ¼³°èÀÇ Á¤±³ÇÔÀÌ ½Å·Ú¼ºÀ» ¾ò´Âµ¥ À־ ÇÊ¿äÇÕ´Ï´Ù. ¿©±â¿¡ ¿ì¸®´Â À¯¾Ð½Ã½ºÅÛ ³»¿¡¼­ÀÇ Cavitation¿¡ ÀÇÇÑ ÇÇÇØ¸¦ ÇÇÇÒ ¼ö ÀÖ´Â Â÷·® °³¹ßÀ» ¾î¶»°Ô ¼öÇàÇÒ Áö¸¦ ¾Ë¾Æº¸°íÀÚ ÇÕ´Ï´Ù. 

 

 


À¯¾Ð ½Ã½ºÅÛÀÇ ¿ä¼Ò Áß Çϳª´Â Implement Pump·ÎºÎÅÍÀÇ À¯Ã¼ÀÇ Return Flow¸¦
¹Þ´Â ºÎºÐÀûÀ¸·Î Â÷ ÀÖ´Â ÅÊÅ©ÀÔ´Ï´Ù. À¯µ¿Àº ÅÊÅ©ÀÇ »óºÎ¿¡¼­ °í¼ÓÀ¸·Î ºÐÃâµÇ¾î °­ÇÑ Flow CirculationÀ» »ý¼ºÇÕ´Ï´Ù. °üÅëµÈ »ç°¢ÇüÀÇ BaffleÀº À¯µ¿À» °¡¶ó¾ÉÈ÷±â À§ÇÑ
¸ñÀûÀÌÁö¸¸, AerationÀÌ ¹ß»ýÇÒ ¼ö ÀÖ½À´Ï´Ù. AerationµÈ À¯Ã¼´Â Implement ¹× Fan Pump·Î °¡´Â Suction LineÀ» ÅëÇØ ¼ö¼ÛµÇ°í, Pump¿¡ CavitationÀ» ¹ß»ý½Ãų °¡´É¼ºÀÌ Áõ°¡µË´Ï´Ù.  CaterpillarÀÇ ¼³°è °úÁ¦´Â STAR-CD·Î ÅÊÅ© ³»ºÎÀÇ °­ÇÑ Fluid Circulation¸¦ ¾àÈ­½Ã۰í Aeration¸¦ °¨¼Ò½ÃŰ´Â ¹æ¹ýÀ» ãÀ½À¸·Î½á, ¹®Á¦¸¦ ÇØ°áÇϰíÁ® ÇÏ¿´½À´Ï´Ù.

STAR-CD´Â Á¤¼ºÀû, Á¤·®ÀûÀ¸·Î ÅÊÅ© ³»ºÎÀÇ Fluid CirculationÀ» ¿¹ÃøÇϰí Á¤»óÀûÀÎ Flow Rate¿¡¼­ÀÇ ¾Ð·Â ¹× ¼ÓµµºÐÆ÷¸¦ ±¸Çس»·Á°í ÇØ¿Ô½À´Ï´Ù. ¸ðµ¨Àº °üÅëµÈ Baffle(Porous Media·Î ¸ðµ¨¸µµÊ), Suction Line, Flow Rate ¹× À¯Ã¼ ¹°¼ºÀ» Æ÷ÇÔÇÑ ÅÊÅ©¿¡¼­ÀÇ À¯µ¿Á¶°ÇÀ» Ç¥ÇöÇÏ¿´½À´Ï´Ù. ±âÁØÀÌ µÇ´Â ¼³Á¤À» ¸ðµ¨¸µÇÏ´Â °Í¿¡ ºÎ°¡ÇÏ¿© 3°¡Áö »õ·Î¿î ¼³°è°¡ ½Ã¹Ä·¹À̼ǵǾú½À´Ï´Ù.

                     

* With baffles encircled by a porous circular tube to more uniformly distribute the high flow jets from baffle holes
* The whole left and right sides of the baffle plates perforated to increase the area open to the fluid
* Extra holes added on each left and right baffles to provide more open flow area

STAR-CD´Â ´Ù¸¥ °æ¿ì¿¡¼­ ´Ù¸¥ À¯µ¿ Á¶°Ç°ú ¸¶Âù°¡Áö·Î Flow CirculationÀÇ ¸í¹éÇÑ Â÷À̸¦ ¿¹ÃøÇÒ ¼ö ÀÖ¾ú½À´Ï´Ù. Flow CircluationÀÇ ¼¼±â´Â
ÅÊÅ©¿¡¼­ÀÇ AerationÀÇ È¤µ¶ÇÔÀ» ¸»ÇØÁÝ´Ï´Ù. ±×¸®°í STAR-CD·ÎºÎÅÍÀÇ º¤ÅÍ PlotÀÇ ºñ±³´Â ù¹øÂ° ¼³°è º¯È­°¡ °¡Àå ³·Àº CirculationÀ» °¡Áö¸ç
ÀÌ´Â Aeration ¹®Á¦¿¡¼­ °¡Àå ÃÖ¼±ÀÇ ÇØ´äÀ̶ó´Â °ÍÀ» º¸¿©ÁÝ´Ï´Ù. ´õ¿ì±â ¿øÇü Æ©ºêÀÇ ´Ù°ø¼ºÀº ÅÊÅ© ³»ÀÇ ¾Ð·Â °­Çϸ¦ °áÁ¤Çϴµ¥ Å« ¿ªÇÒÀ» ÇÑ´Ù´Â
»ç½Ç ¶ÇÇÑ ¹àÇô³»¾ú½À´Ï´Ù; ´Ù°ø¼ºÀÌ Áõ°¡ÇÒ¼ö·Ï ¾Ð·Â °­ÇÏ´Â °¨¼ÒÇÕ´Ï´Ù. ÀÌ·¯ÇÑ ¼³°èÀÇ °üÁ¡Àº ¶ÇÇÑ ÃÖÀûÈ­µÉ ¼ö ÀÖ½À´Ï´Ù. ÀÌ·¯ÇÑ ¾Õ¼± ¼³°è¿¡¼­, High Flow Jet´Â Èð¾îÁö°í À¯µ¿Àº ÅÊÅ© ¾ÈÀ¸·Î ÀÏÁ¤ÇÏ°Ô ³ª¾Æ°¬½À´Ï´Ù.

¿ä¾àÇϸé, Caterpillar»ç´Â STAR-CD¸¦ »ç¿ëÇÑ CFD ÇØ¼®ÀÌ À¯µ¿ÀÇ »ó¼¼ÇÑ ÀÌÇØ¿¡ µµ¿òÀÌ µÇ°í ¿øÇüÀ» ¸¸µé°í ½ÃÇèÇϱâ ÀÌÀüÀÇ ¼³°è ÃÖÀûÈ­¿¡ µµ¿òÀÌ µÈ´Ù´Â °ÍÀ» ¾Ë¾Ò½À´Ï´Ù. ¶ÇÇÑ ¼³°è º¯°æ°ú ½ÇÁ¦ÀÇ Çϵå¿þ¾î Á¦ÀÛ¿¡ µå´Â ½Ã°£°ú ºñ¿ëÀÌ ÁÙ¾îµé°Ô µÇ¾ú½À´Ï´Ù.

 

 

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