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³í¹®¸í dzµ¿½ÇÇè½Ã ÃßÀû°¡½º¸¦ ÀÌ¿ëÇÑ Á¤·®ÁÖÀÔ¹ý°ú CFD¸¦ ÀÌ¿ëÇÑ È¯±â·® ºñ±³ / Comparison by Air Flow Rate of Constant Injection Method with Tracer Gas of Wind Tunnel Experiment and CFD Method / 6-B ȯ±â/¹æÀç ¥±
ÀúÀÚ¸í ±è´ë¿õ½Äº°ÀúÀÚ ; È«±¸Ç¥½Äº°ÀúÀÚ ; ±è±¤È£½Äº°ÀúÀÚ ; ±èÅ¿¬½Äº°ÀúÀÚ ; ±èº´¼±½Äº°ÀúÀÚ ; ³ëÁö¿õ½Äº°ÀúÀÚ
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¼ö·Ï»çÇ× ´ëÇѼ³ºñ°øÇÐȸ ÇϰèÇмú¹ßǥȸ ³í¹®Áý (2005-06)
ÆäÀÌÁö ½ÃÀÛÆäÀÌÁö(789) ÃÑÆäÀÌÁö(6)
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ÁÖÁ¦¾î Wind Tunnel Test ; dzµ¿½ÇÇè ; Air Flow Rate ; ȯ±â·® ; CFD ; Àü»êÀ¯Ã¼¿ªÇÐ ; Constant Injection Method ; Á¤·®ÁÖÀÔ¹ý ; Tracer gas method ; ÃßÀû°¡½º¹ý
¿ä¾à1 »ê¾÷ÀÇ ¹ßÀü°ú ´õºÒ¾î ´ë±â¿À¿°ÀÌ ½É°¢ÇØÁö°í ÀÌ¿¡ µû¶ó ½Ç³» °ø±â ¿À¿°ÀÇ ¹®Á¦°¡ ½É°¢ÇÏ°Ô ´ëµÎµÇ°í ÀÖ°í ±× Á߿伺Àº ´õ¿í Áõ°¡Çϰí ÀÖ´Ù. ½Ç³»°ø±âÁúÀÇ Àû±ØÀûÀÎ °ü¸®¸¦ À§ÇÑ Á¦¾î¹æ¾ÈÀ¸·Î ȯ±â°¡ ÀÌ¿ëµÈ´Ù. ½Ç³»¿¡¼­ ¹ß»ýÇÏ´Â ¿À¿°¹°ÁúÀÇ È®»ê ¹× ºÐÆ÷ °Åµ¿À» ÆÄ¾ÇÇÏ°í ½Ç³» °ø±âÀ¯µ¿ÀÇ ÀûÁ¤¼ºÀ» ÆÄ¾ÇÇϱâ À§Çؼ­ ÃßÀû°¡½º¸¦ ÀÌ¿ëÇÑ È¯±â½ÇÇèÀÌ ¼öÇàµÈ´Ù. ÃßÀû°¡½º¸¦ ÀÌ¿ëÇÑ È¯±â½ÇÇèÀº ±× ÀÀ¿ë¹üÀ§°¡ ¸Å¿ì ³Ð°í, Ãֱ٠ȯ±âÀÇ ¼º´ÉÀ» Á¤·®ÀûÀ¸·Î ³ªÅ¸³»±â À§ÇØ ¸¹Àº ¿¬±¸°¡ ÁøÇàµÇ°í ÀÖ°í À̸¦ ÃøÁ¤Çϱâ À§ÇÑ ÃßÀû°¡½º ½ÇÇè¹æ¹ýµéÀÌ ¸¹ÀÌ °³¹ßµÇ°í ÀÖ´Ù.
º» ¿¬±¸¿¡¼­´Â Àç·¡½ÃÀåÀÇ È¯±â¼º´ÉÀ» ³ôÀ̱â À§ÇÑ ¾ÆÄÉÀÌµå ¿¬±¸¿¡¼­ ÀÌ¿ëÇÑ ¸ðµ¨À» 1/20·Î Ãà¼Ò Á¦ÀÛÇÏ¿© ÃßÀû°¡½º¸¦ ÁÖÀÔÇϰí ÀÌÀÇ È®»ê°ú À̵¿ °úÁ¤À» °üÂûÇÏ´Â ¹æ¹ý°ú CFD(Computational Fluid Dynamics) ½Ã¹Ä·¹À̼ÇÀÎ Star-CD¸¦ ÀÌ¿ëÇÏ¿© ȯ±â¸¦ ÇØ¼®ÇÏ¿© µÎ ¹æ¹ýÀ» ºñ±³ÇÏ¿´´Ù.
ÃßÀû°¡½º¸¦ ÀÌ¿ëÇÏ´Â ¹æ¹ý Áß¿¡´Â ³óµµ°¨¼è¹ý, ÀÏÁ¤³óµµ¹ý, Á¤·®ÁÖÀÔ¹ýÀÌ ÀÖ°í ¿©±â¼­ ÀÏÁ¤·®ÀÇ ÃßÀû°¡½º¸¦ ½Ç³»¿¡ ¹æÃâÇϸ鼭 ÃøÁ¤ÇÏ´Â Á¤·®ÁÖÀÔ¹ýÀ» »ç¿ëÇÏ¿´´Ù.
dzµ¿½ÇÇè¿¡¼­´Â 100mm °£°ÝÀ¸·Î 11°³ÀÇ Æ©ºê¸¦ ÀÏ·Ä·Î ¹èÄ¡ÇÏ¿© 4,8¹øÂ° Æ©ºê¿¡ ÃßÀû°¡½ºÀÎ SF6°¡½º¸¦ ¹ß»ý½ÃŰ°í ³ª¸ÓÁö Æ©ºê¿¡¼­ ¸ÖƼ°¡½º¸ð´ÏÅÍ·Î ÃøÁ¤ÇÏ¿´°í, dzµ¿½ÇÇè°ú µ¿ÀÏÇÑ Á¶°ÇÀ¸·Î CFD ½Ã¹Ä·¹À̼ÇÀ» ½Ç½ÃÇÏ¿´´Ù.
µÎ °¡Áö ¹æ¹ý¿¡ ÀÇÇÑ ÇØ¼®°á°ú¿¡¼­ CFD ½Ã¹Ä·¹À̼ǿ¡ ÀÇÇÑ °á°ú°¡ dzµ¿½ÇÇè¿¡ ÀÇÇÑ °á°ú¿¡ ºñÇØ ´Ù¼Ò Å« °ªÀ» ³ªÅ¸³»°í ÀÖÀ¸³ª ÃøÁ¤À§Ä¡¿¡ µû¸¥ ¼º»óÀº ÀÏÄ¡Çϰí ÀÖ´Ù. ½ÇÇè °á°ú°ª°ú ½Ã¹Ä·¹À̼ǿ¡ ÀÇÇÑ °á°ú°ªÀº ¾à 11% Á¤µµ Â÷À̰¡ ³­´Ù. µû¶ó¼­ CFD¿¡ ÀÇÇÑ ÇØ¼®°á°ú´Â ÃæºÐÇÑ ½Å·Ú¼ºÀ» È®º¸Çϰí ÀÖ´Ù.
¾ÕÀ¸·ÎÀÇ ¿¬±¸´Â ½ÇÇè¿¡¼­ ȯ±â±¸ÀÇ À§Ä¡, dz¼ÓÀÇ º¯È­µî ´Ù¾çÇÑ º¯¼ö¸¦ ´ëÀÔÇÏ¿© ½Ã¹Ä·¹ÀÌ¼Ç °á°ú¿Í ºñ±³ÇÏ¿© ´õ ¸¹Àº ½Å·Ú¼ºÀ» È®º¸ÇÒ ¼ö ÀÖµµ·Ï ÇØ¾ß ÇÒ °ÍÀÌ´Ù.
¿ä¾à2 This paper demonstrates the use of a tracer gas of wind tunnel experiment and CFD simulations to make a comparative study of air flow rate. In wind tunnel experiments , tracer gas was monitored in constant injection method and the concentration of the gas measured with multi-gas monitor. CFD simulations were conducted in identical conditions of wind tunnel experiment. The results obtained from the wind tunnel experiments were also compared with the two approaches. The results of the wind tunnel experiment were almost same with output results of the CFD model.
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