第
39
卷第
5
期
2013
年
5
月
北京工业大学学报
JOURNAL
OF
BEIJING
UNIVERSITY
OF
TECHNOLOGY
Vo
l.
39
No.5
May
2013
燕尾型轴向槽道热管薄液膜热传递及实验验证
张任平，朱旺法
(东南大学能源与环境学院，南京
210096)
摘
要:基于薄液膜的传热传质理论建立了燕尾形槽道热管的蒸发段与冷凝段热传递的数学模型，利用
Laplace
Young
方程得到不同负荷下的轴向毛细半径分布.分析求解了蒸发段温降与冷凝段的温降随热负荷的变化，进而
得出了热管温降随热负荷的变化实验研究了热管在不同冷源温度下温降随热负荷的变化.结果表明:槽道中液
膜厚度沿轴向逐渐增厚;蒸发段和冷凝段温降随热负荷增大而增大;通过比较模型预测值和实验测量值，发现两者
吻合较好，进一步验证本文所建的模型的正确性.
关键词:薄液膜;槽道热管;热传递
中图分类号:
TK
124
文献标志码
:A
文章编号:
0254
-0037(2013)05
-0774
一
06
Theoretical Investigation and Experimental Validation
on
Thin Film Heat
Transfer of Heat Pipe With
Axially
Swallow
-tailed Microgrooves
ZHANG
Ren-ping
,
ZHU
Wang-fa
(
College
of
Energy and Environment , Southeast University , N
anji
吨
210096
，
China)
Abstract:
A
thermal
model
for
evaporator
and
condenser
section
of
heat
pipe
with axially
swallow-tailed
microgrooves was
developed
based
on
heat
and
mass
transfer
of
thin
liquid
film.
The
capillary
radius
under
different
heat
load
conditions
was
obtained
from
the
Laplace-
Y
oung
equation.
The
effect of
heat
load
on
the
temperature
drop
of
evaporator
and
condenser
section
was
discussed
and
the
total
temperature
drop
of
heat
pipe
was
obtained.
An
experimental
research
on
the
heat
pipe
was
presented
and
the
effect
of
heat
load
on
the
temperature
drop
was
analyzed
in
different
temperature
of
cold
sources.
The
results
showed
that
the
thickness
of
liquid
film
in
the
microgroove
increased
along
the
axial
direction;
the
temperature
drop
of
evaporator
and
condenser
section
increased
with a rise of
heat
load.
The
analytical
results
were
compared
with
experimental
results
and
found
to
be
in
good
agreement
,
and
the
accuracy
of
the
model
was
further
verified by
the
experimen
t.
Key
words:
thin
liquid
film;
grooved
heat
pipe;
heat
transfer
燕尾形轴向槽道热管具有强劲的毛细驱动力，
并有效削弱了蒸气对微槽内液体的剪切携带作用，
该类热管已被欧洲空间局
(European
Space
Agency
,
ESA)
列入到高性能槽道热管框架候选名录中，并在
实践中证明了其能可靠实现元泵、小温差、长距离的
收稿日期:
2012-01-06.
热量传输，在航天器热控系统和电子元器件的散热、
均温等领域有着广阔的应用前景.
当前，国内外学者对槽道热管进行了许多的实
验和理论研究.如
Khrustalev
等[
1.2J
发现微小型多
槽道铜水平板热管在一定的工作温度范围内，最大
基金项目:国家"十一五"科技支撑计划重点资助项目
(2008BA
J1
2B02
)
作者简介:张任平(1
979-)
，男，博士研究生，主要从事微尺度传热传质、能源利用及系统结构优化方面的研究，
E-mail:
rpzhang@
seu. edu. cn.
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