( , ).
1. .
-.
ϳ.
C, .
C, .
kg/m3, .
J/(kg×), .
W/(m×), .
m2/s, , .
, , - m, , , .
2. .
, m, .
, W, .
, W/(m2), .
, .
, m/s, .
,s, , .
3. .
, m, ,
, .
,m/s, , .
:
1. ht ~ rp, ;
2. vt ~ VL, , ;
3. ht ~ H, .
4. .
, , , Z t.
, , , , , .
ierfc MathCad- , (. ).
䳿 [5]:
. (6.1)
[5]:
. (6.2)
, - .
6.1 - 䳿 T(z,t) | 6.2 - 䳿 T(z) |
6.3 - 䳿 V(z) | 6.4 - 䳿 V(z,t) |
䳺 䳿 [5]:
. (6.3)
(t > ti):
, , , .
䳿 [5]:
. (6.4)
6.5. - 䳺 䳿 Tg(z,t) | 6.6 - 䳿 (z,t) |
[7]:
. (6.5)
6.7 - 䳿 T(z) | 6.8 - - V(z,t) |
- [7]:
. (6.6)
- [7]:
. (6.7)
[5]:
. (6.8)
[5]:
. (6.9)
6.9 - V(z) | 1.10 - 䳿 - T(t) |
6.11 - 䳿 - T(t) | 6.12 - V(t) |
6.13 - V(t)
|
|
2 ( 2.mcd):