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[A+ �젅�룷�듃] 踰좊Ⅴ�늻�씠 諛⑹젙�떇(Bernoulli`s equation)
I. �꽌濡� 1
II. 蹂몃줎 1
1. 踰좊Ⅴ�늻�씠 諛⑹젙�떇�씠���? 1
2. �삤�씪�윭�쓽 �슫�룞諛⑹젙�떇 2
3. 踰좊Ⅴ�늻�씠 諛⑹젙�떇 2
4. 踰좊Ⅴ�늻�씠 諛⑹젙�떇�쓽 �쓽誘� 2
III. 寃곕줎 4
* 李멸퀬 �옄猷� 4
I. �꽌濡�
踰좊Ⅴ�늻�씠 諛⑹젙�떇��� 怨좎냽�룄濡쒖뿉�꽌 �옄�룞李④�� 遺뺣쑉�뒗 �쁽�긽, 怨⑦봽怨듭씠 �슱�뎮遺덊뎮�븳 �씠�쑀, 鍮꾪뻾湲� �궇媛� �쐞�뒗 �뫁洹몃젃怨� �븘�옒履쎌�� �룊�룊�븳 紐⑥뼇 �벑�뿉 �솢�슜�맂�떎. �씠 �옄猷뚮뒗 踰좊Ⅴ�늻�씠 諛⑹젙�떇(Bernoulli`s equation)�뿉 ����븯�뿬 遺꾩꽍, �젙由ы븳 A+ �젅�룷�듃�엯�땲�떎.
II. 蹂몃줎
1. 踰좊Ⅴ�늻�씠 諛⑹젙�떇�씠���?
�씠 �떇��� 1738�뀈 �떎�땲�뿕 踰좊Ⅴ�늻�씠�쓽 ����꽌 �쑀泥댁뿭�븰(Hydrodynamica)�뿉�꽌 諛쒗몴�븯����떎. 踰좊Ⅴ�늻�씠 諛⑹젙�떇��� �젙�븬 + �룞�븬 = �쟾�븬�젰�쑝濡� �슂�빟�맂�떎. �쓲瑜대뒗 �쑀泥댁뿉 ����븯�뿬, �쑀�꽑�긽�쓽 紐⑤뱺 �삎�깭�쓽 �뿉�꼫吏��쓽 �빀��� �빆�긽 �씪�젙�븯�떎. 踰좊Ⅴ�늻�씠 諛⑹젙�떇�씠 �꽦由쏀븯�뒗 議곌굔��� �쑀泥대뒗 鍮꾩븬異뺤꽦�씪 寃�, �븬�젰�씠 蹂��븯�뒗 寃쎌슦�뿉�룄 諛��룄�뒗 蹂��븯吏� �븡�쓣 寃�, �쑀�꽑�씠 寃쎄퀎痢듭쓣 �넻怨쇳븯�뿬�꽌�뒗 �븞�릺�뒗 寃껋씠�떎.
�삉�븳 �젏�꽦�젰�씠 議댁옱�븯�뒗 寃쎌슦 踰좊Ⅴ�늻�씠 諛⑹젙�떇�쓣 �쟻�슜�븷 �닔 �뾾�떎. 踰좊Ⅴ�늻�씠 諛⑹젙�떇��� �삤�씪�윭�쓽 �슫�룞諛⑹젙�떇�쓣 �쟻遺꾪븯�뿬 �뼸�뒗�떎.
2. �삤�씪�윭�쓽 �슫�룞諛⑹젙�떇
�삤�씪�윭�쓽 �슫�룞�뿉 ����븳 媛��젙��� �쑀泥댁엯�옄�뒗 �쑀�꽑�뿉 �뵲�씪 ���吏곸씠怨�, �쑀泥대뒗 留덉같�씠 �뾾�떎 (利�, �젏�꽦�젰 = 0). 洹몃━怨� �젙�긽�쑀�룞�쓣 �븳�떎.
3. 踰좊Ⅴ�늻�씠 諛⑹젙�떇
4. 踰좊Ⅴ�늻�씠 諛⑹젙�떇�쓽 �쓽誘�
踰좊Ⅴ�늻�씠 諛⑹젙�떇�쓽 媛� �빆��� �떒�쐞媛� [ m ]�씠�떎. �씠�뒗 [N m/ N ] = [J/ N ]濡� 媛� �빆��� �떒�쐞以묐웾�떦�쓽 �쑀泥닿�� 媛�吏��뒗 �뿉�꼫吏�瑜� �굹����궡怨� �엳�떎. �쑀�꽑�쓣 �뵲�씪 �슫�룞�븯�뒗 �쑀泥댁엯�옄媛� 媛�吏��뒗 �뿉�꼫吏��쓽 珥앺빀��� �쑀�꽑�긽�쓽 �엫�쓽�쓽 �젏�뿉�꽌 �빆�긽 �씪�젙 遺덈���븯�떎.
利�, �븬�젰E + �냽�룄E +�쐞移쁄 = �씪�젙�쓽 �삎�깭濡� 援ъ꽦�릺�뼱 �엳�떎. �뿉�꼫吏� 蹂댁〈踰뺤튃�씤 �룷�뀗�뀥E (�쐞移쁄 + �깂�꽦E) + �냽�룄E = �씪�젙怨� 媛숈�� �삎�깭濡� �릺�뼱�엳�떎. �뵲�씪�꽌, 踰좊Ⅴ�늻�씠 諛⑹젙�떇���(�깮�왂)
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