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Çѱ¹¼öÀÚ¿øÇÐȸ / v.34, no.4, 2001³â, pp.327-333
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( Fall-Velocity Measurement Using Image Analysis Technique )
À±º´¸¸;À¯±Ç±Ô;³ë¿µ½Å; ¸íÁö´ëÇб³ SOC°øÇкÎ;The Univ. of Iowa Åä¸ñȯ°æ°øÇаú;¸íÁö´ëÇб³ SOC°øÇкÎ;
 
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PTV´Â ºñµð¿À Ä«¸Þ¶ó·Î ±â·ÏµÈ ¿µ»óÀÇ ºÐ¼®À» ÅëÇÏ¿© È帧¼Óµµ¸¦ ÃøÁ¤ÇÑ´Ù. ÀÌ·¯ÇÑ PTV ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© À¯»çÀÇ Ä§°­¼Óµµ¸¦ ÃøÁ¤ÇÏ¿´´Ù. ½ÇÇèÀ» ÅëÇØ ÃøÁ¤µÈ Á¤Áö À¯Ã¼³» À¯»çÀÇ Ä§°­¼Óµµ¸¦ ±âÁ¸¹®Çå¿¡ Á¦½ÃµÈ °ª°ú ºñ±³ ºÐ¼®ÇÑ °á°ú, ħ°­¼Óµµ ÃøÁ¤¿¡ PTV¸¦ ÀÌ¿ëÇÒ ¼ö ÀÖÀ½ÀÌ ÀÔÁõµÇ¾ú´Ù. µû¶ó¼­ PTV¸¦ ÀÌ¿ëÇϸ鳭·ùÈ帧 ÁßÀÇ Ä§°­¼Óµµ ÃøÁ¤ÀÌ °¡´ÉÇØÁ® ³­·ùÈ帧 ÁßÀÇ Ä§°­¼Óµµ Ư¼º ±Ô¸í¿¡ ±â¿©ÇÒ ¼ö ÀÖÀ» °ÍÀÌ´Ù.
Particle tracking velocimetry (PTV) is introduced and applied to the fall-velocity measurement. The fall velocities of sediment particles were measured using PTV in the still water and compared with the values presented in the existing literature. Comparison shows that PTV measures the fall velocities accurately. This result enables the measurement of fall velocity in the turbulent flows, which was not possible with conventional methods.
 
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.34, no.4, 2001³â, pp.327-333
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111920731492)
¾ð¾î : Çѱ¹¾î
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