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Çѱ¹¼öÀÚ¿øÇÐȸ / v.33, no.6, 2000³â, pp.815-825
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Einstein ºÎÀ¯»ç·® »êÁ¤½ÄÀÇ °³¼±
( Improvement of Einstein's Suspended Load Equation ) |
| À¯µ¿ÈÆ;½Å½ÂÈ£;ÀÓÇмö; ¾ÆÁÖ´ëÇб³ Åä¸ñ¼³°è°øÇаú;±¹Å俬±¸¿ø;¾ÆÁÖ´ëÇб³ °Ç¼³±³Åë°øÇаú;
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| Einstein(1942)ÀÇ ºÎÀ¯»ç·® »êÁ¤½Ä À¯µµ°úÁ¤¿¡ ÀÖ¾î ¸î °¡Áö ¹®Á¦Á¡µéÀ» °³¼±ÇÏ¿´´Ù. ¼ö·ùÁ¶°ÇÀ» ÆÇº°ÇÏ¿© ¿Ï³·ù Á¶°Ç¿¡¼ À¯¼ÓÀÇ ¿µÁ¡³ôÀ̸¦ »êÁ¤ÇÏ´Â ¹æ¹ýÀ» Á¦½ÃÇÏ°í ºÎÀ¯»ç·® »êÁ¤½ÄÀ» ÀϹÝÈÇÒ ¼ö ÀÖ´Â ¹«Â÷¿ø¼ö¸¦ µµÀÔÇÏ¿´´Ù. ¶ÇÇÑ, ±âÁØÁ¡ ³óµµ »êÁ¤ÀÇ Á¤È®¼ºÀ» °³¼±Çϱâ À§ÇÏ¿© ÃÖ±Ù¿¡ °³¹ßµÈ ¼Ò·ù»ç·® »êÁ¤½ÄÀ¸·ÎºÎÅÍ °ü·ÃÄ¡¸¦ ÃßÁ¤ÇÏ¿´À¸¸ç, ¼öÄ¡ÀûÀ¸·Î ¶Ç´Â µµÇ¥¸¦ ÀÌ¿ëÇÏ¿© ÇØ¸¦ ±¸ÇØ¾ß ÇÏ´Â ¼ö½ÉÀûºÐÄ¡ÀÇ ±Ù»ç½ÄÀ» °³¹ßÇÏ¿´´Ù. EinsteinÀÇ ±âÁ¸ ºÎÀ¯»ç·® »êÁ¤½Ä°ú °³¼±µÈ ºÎÀ¯»ç·® »êÁ¤½ÄÀÇ Á¤È®µµ¸¦ °ËÅäÇÏ¿© Brownlie(1981)°¡ ¼öÁýÇÑ ÀÚ·á¿¡ ´ëÇÑ »êÁ¤°á°ú¸¦ Á¦½ÃÇÏ¿´´Ù. |
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| In the present work Einstein's(l942) suspended load equation IS refined in vanous aspects. After checking the flow characteristics a new method is presented for the estimation of zero velocity point at the condition of smooth turbulent flow, and non-dimensional number of suspended load is introduced for the clear representation of suspended load equation. And a recent equation of bed load is employed in order to calculate accurately the sediment concentration at a reference point. Several approximation equations are also developed to compute directly or explicitly two integrals introduced in the equations. The refined equation has been tested against the measurement data collected by Brownlie(l981) in comparison with Einstein's original equation.uation. |
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| ºÎÀ¯»ç;¿µÁ¡³ôÀÌ;ºÎÀ¯»ç·® ¹«Â÷¿ø¼ö;¿Ï³·ùÁ¶°Ç;¼Ò·ù»ç·®;ÀӰ踶Âû·Â;ºÎÀ¯»ç ³óµµ;¾çÇØÀû ±Ù»çÀûºÐ½Ä;suspended load;zero velocity point;smooth turbulent flow;non-dimensional number of suspended load;bed load;sediment concentration; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.33, no.6, 2000³â, pp.815-825
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200011920730500)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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