|
|
|
ÄÁÅÙÃ÷ | contents |
|
|
½ºÅ͵ð | study |
|
|
|
|
|
|
ÀÚÀ¯Ä§°½Ã ħ°¼Óµµ °è»ê |
|
|
±Û¾´ÀÌ : ¿î¿µÀÚ °íÀ¯ID : ¿î¿µÀÚ
³¯Â¥ : 00-00-00 00:00
Á¶È¸ : 18517
|
|
|
ÀÚÀ¯Ä§°½Ã ħ°¼Óµµ °è»ê
1. Stokes ¹ýÄ¢
Àû¿ë (Nre < 0.1 : Ãþ·ù¿µ¿ª)
U [m/sec] = Dp^2 (¥ñs - ¥ñ) * g / (18 * ¥ì)
2. Allen ¹ýÄ¢
Àû¿ë (0.1 < Nre < 1000 : ÀüÀÌ¿µ¿ª)
U [m/sec] = 4/225 * [ (¥ñs - ¥ñ)^2 * g^2 / (¥ñ * ¥ì)]^1/3 * Dp
3. Newton ¹ýÄ¢
Àû¿ë (1,000 < Nre < 20,000 : ³·ù¿µ¿ª)
U [m/sec] = ¡î(3 * g * (¥ñs - ¥ñ) * Dp / ¥ñ))
4. ÀϹÝÇü ÃÖÁ¾Ä§° ¼Óµµ
U [m/sec] = ¡î[ (4 * Ds * (¥ñs - ¥ñ) * g) / (3 * Nre * ¥ñ)
¡Ø º¯¼ö¼³¸í
- ¥ñs : ħ°ÇÏ´Â ÀÔÀڹеµ [g/cm3]
- ¥ñ : À¯Ã¼¹Ðµµ [g/cm3]
- Dp : ħ°ÇÏ´Â ÀÔÀÚÁö¸§ [cm]
- ¥ì : À¯Ã¼Á¡µµ [g/cm-sec]
- Ds : ÀÔÀÚ¿Í °°Àº ºÎÇǸ¦ °®´Â ±¸ÀÇ Áö¸§
- g : Á߷»ó¼ö 980 m/sec
|
|
|
|