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ÇÑ°è¼ö½É(»ç°¢Çü ´Ü¸é) - Critical depth (rectangular cross section)

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ÇÑ°è¼ö½ÉÀº ºñ¿¡³ÊÁö(specific energy)°¡ ÃÖ¼Ò°¡ µÇ´Â È帧À» ¸»ÇÑ´Ù.

ºñ¿¡³ÊÁö(He)´Â ´ÙÀ½°ú °°´Ù.

He = h + ¥á* V^(2) / (2*g)

h : ¼ö½É
¥á : ¿¡³ÊÁö º¸Á¤°è¼ö(º¸Åë 1.1)
V : Æò±ÕÀ¯¼Ó
g : Á߷°¡¼Óµµ

»ç°¢Çü ¼ö·Î ´Ü¸éÀÇ ÆøÀ» b, À¯·®À» Q ¶ó Çϸé, Q = A*V = h*b*V À̹ǷÎ, V = Q/(h*b) °¡ µÇ°í, »ó±â½ÄÀº ´ÙÀ½°ú °°´Ù.

He = h + ¥á* Q^(2) / (2*g*(h*b)^2)

He °¡ ÃÖ¼Ò°¡ µÇ±â À§ÇÑ ¼ö½É hc (critical depth)¸¦ ±¸Çϱâ À§ÇÏ¿© »ó±â½ÄÀ» h¿¡ ´ëÇÏ¿© ¹ÌºÐÇÏ°í ¹ÌºÐ°ªÀÌ 0ÀÌ µÇ´Â h ¸¦ ±¸ÇÑ´Ù.

1 - 2 * ¥á* Q^(2) / (2*g*b^2) * h^(-3) = 0

h^3 = ¥á* Q^(2) / (g*b^2)

h = (¥á* Q^(2) / (g*b^2))^(1/3) = hc

hc = (¥á* Q^(2) / (g*b^2))^(1/3)


*** Âü°í¹®Çå[References] ***

hc = (¥á* Q^(2) / (g*b^2))^(1/3)
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º¯¼ö¸í Variable º¯¼ö°ª Value º¯ ¼ö ¼³ ¸í Description of the variable


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