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双钨极TIG电弧-熔池传热与流动数值模拟
*
王新鑫, 樊丁, 黄健康, 黄勇
NUMERICAL SIMULATION OF HEAT TRANSFER AND FLUID FLOW IN DOUBLE ELECTRODES TIG ARC-WELD POOL
WANG Xinxin, FAN Ding, HUANG Jiankang, HUANG Yong
表1
边界条件
Table 1
Boundary conditions
Area
v / (m·s
-
1
)
T / K
??
Φ
/ V
A / (Wb·m
-
1
)
A
v
z
=
v
(
x
,
y
)
T=T(x, y)
?
Φ
?
n
=
0
?
A
?
n
=
0
B
?
(
ρ
v
)
?
n
=
0
?
T
?
n
=
0
?
Φ
?
n
=
0
A=0
C
-
Eq.(18)
?
Φ
?
n
=
0
A=0
D
-
Eq.(18)
0
?
A
?
n
=
0
E
-
1800
-
σ
e
?
Φ
?
z
=
I
π
r
c
2
?
A
?
n
=
0