.
i . , () i 
:
[ 
dV]= 
dV
+div( 
)=
n-:
+div(Σ 
)] = 
= > 
.. .
=0- .
:
== 
= 
=> 
= 
= ρ
= 
- i
+div( )-div( 
)+ div( )= 
+div[ 
( 
+ div( )= 
+ div( )+div = - i .
:
+ div( 
)+divΣ =Σ
𝛴 = 
- 
=0; Σ 
:
+ div 
=0
+div( ρ)=0 -
+ div( )= 
- div
= 
=> = 
( ). :
ρ[ 
+ grad ]+ 
[ +div 
]=- div 
= 
-div
=[ 
]= 
=f(T,P,U, )- . i-.
- i-.
=ρ[ ( 
)∇ + ( 
) ∇ 
+ ( 
) ∇ 
+ 
∇U+]
=ρ[ 
∇ + 
∇T+ 
∇P+ 
∇U]=ρ[∇ + 
∇T+ 
∇P+ 
∇U], 
- , , , ; 
- , , - i 
= 
; 
= 
; 
= 
i , , , ..
ρ[ 
+ grad ]= -ρdiv[ ∇ + 
∇T+ 
∇P+ 
∇U] 
- i
+ 
+ 
+ 
= - [ 
+ 
+ 
] 
- i ( ).
() :
div(- grad )=0
- grad =const-
=- grad - i
=- 
grad - i
=𝛽△ = - grad =- 
=> 𝛽 = 
- . . i- .
.
+ 
: 
, xi0, ω0, z0- .
+ 
:
+ 
Fo = 
- ( );
Pe= 
- ( ) Pe= 
=Re Pr, Pr= 
- .
|
|
|
Po= 
- () . .
+=- 
III : Bi= 
.
β[xi(τ,0)-xi]= 
; β 
[xi(τ,0)-xi]= 
; Bi[xi(τ,0)-xi]= 
