1. R=R*/M ±âü »ó¼ö ±¸ÇÒ¶§ R*ÀÖÀݾƿä À̰͸»°íµµ º°Ç¥°¡ ºÙ¾îÀÖ´Â °ÍµéÀÌ ¸¹Àºµ¥ º°Ç¥°¡ ºÙ¾îÀִ°ÍÀº ¹«½¼ ¶æÀÌ¿¡¿ä?
2. »ç½Ç Àß ¸ð¸£°Ú¾î¼ ÀÏ´Ü ÀÌ ºÎºÐÀ» ´Ù Àû¾îº¸°Ú½À´Ï´Ù.
verticalvariation (Z) of pressure in atmosphere
Stationary cylinder
- Cross sectional area, A
- Density, (¹Ðµµ) (kg/m3)
Weight of cylinder downwards is balnced by net upward pressure force
Mass of cylinder = volume x density dZxAx(¹Ðµµ)
Forcer balance (¡è)
-(P+dP)A+P.A-dZ.A.¹Ðµµ.g = 0
simplify
dP/dZ = -(¹Ðµµ)g hydrostatic law
°Ë»öÀ» Çغ¸´Ï±î 2¹ø ºÎºÐÀº ³ª¿ÍÀÖ¾ú´Âµ¥¿ä (±Û¾´ÀÌ À¯½Ã¿´Ô) ½Ä¿¡ °üÇÑ ¼³¸íÀº ³ª¿ÍÀÖÁö¸¸Àº ÀÌÇØ°¡ Àß ¾ÈµÇ¼¿ä..
±×¸®°í ¿©±â¼ ¹ÌºÐºÎÇÇ°¡ ÇÏ´Â ¿ªÇÒÀÌ ¹«¾ùÀÌÁÒ?
3. scale height ÀÌ ´ë±â¾Ð¿¡¼ 1/e·Î ³ª´©¸é ¶È ¶³¾îÁö´Â ³ôÀÌ 8km ÀΰÍÀΰ¡¿ä?
±×·¯´Ï±î.. H=RT/g= 8
±×¸®°í scale height Àº hydrostatic law ¿Í ¹«½¼ °ü·ÃÀÌ ÀÖ´Â °ÍÀÌÁÒ?
4. ¶Ç ¿Å°Ü ÀûÀ»°Ô¿ä
Mean Free path (¶÷´Ù) - another measure of the effect of the vertical gas distibution
Q.N.(¶÷´Ù) = 1
- Q- cross section m2
- Number density, N molec m-3)
- surface, ¶÷´Ù=0.3 ¸¶ÀÌÅ©·Î¹ÌÅÍ
- 300 km, ¶÷´Ù = 100 km (satelite drag)
ÀÌ ÆÄÆ®´Â ÀÌÇظ¦ ¸øÇÏ°Ú¾î¿ä °¡·Î·Î ÀÚ¸¥¸é°ú ±×¿¡ ´ëÇÑ ¹Ðµµ¸¦ °¡Áö°í °¡½º ºÐÆ÷µµ(?)¸¦ ±¸ÇÏ´Â °Ç°¡¿ä?
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