纵掠管束湍流对流换热的数值实验及其关联式
北京电影学院分数线-端午节的来历50字
第
39
卷第
2
期
J
.
University
of
Shanghai
for
Science
and
Technology
上海理工大学学报
Vol.39 No. 2
2017
文章编号!
007-6735(2017)02-0110-04
DOI:
.
jusst.2017.02.002
i
纵掠管束湍流对流换热的数值实
验及其关联式
杨茉S
吕海涛<
赵有生
2!
陆廷康
3!<
br>戴正华
3
(1.上海理工大学能源与动力工程学院,上海200093# 2.上海斯耐
迪工程咨询有限公司,上海200233#
3.上海市浦东新区特种设备监督检验所,上海200136
)
摘要:对圆管内和级掠管束的湍流对流换热分别运用模型和雷诺应力模型(
RSM
)
进行了数
值模拟.数值模拟结果表明,采用现有的管内湍流换热实验关联式近似计算级掠管束对流换热的偏
差较大.通过数值模拟研究了不同节距、不同雷诺数时级掠管束的对流换热规律,给出了级掠
管束流动换热的努塞尔数与
Ee
的数值实验关联式.
A
Ee
关键词:
级掠管束;湍流;对流换热;数值模拟;关联式
中图分类号:124
文献标志码:
TK
Numerical Investigation and
Correlation Formula on the
Turbulent
Convection Heat Transfer in
Longitudinal Tube
Banks
YANGMo
,
LOHaitao1,ZHAOYousheng
,山
Tingkang3,DAIZhenghua
123
(1.
School of Energy and Power Engineering $$
University of Shanghai for Science and Technology
$$ Shanghai 20009
;
$$ China #
2.
Shanghai Snerdi Engineering Consulting Co
.
,
Ltd
. ,
Shanghai 200233,China #
3.
Shanghai
Pudong New Area Special
Equipmeni Supervision and Inspection
Institute,Shanghai
200136
,
China
Abstract
:
The
turbulent
convection
heat
transfers
in
a
circular
tube
and
in
longitudinal
tube
banks
were
simulated
with
the
k
-%
model
and
Reynolds
stress
model
(
RSM
)
respectively
.
The
simulation
results
show
that
there
are
valid
deviations
in
the
approximate
calculations
by
the
existing
experimental
correlation
formula
for
the
turbulent
convection
heat
transfer
in
banks
.
Further
simulations
were
carried
out
with
different
pitch
ratios
and
Reynolds
numbers
.
Based
on
the
numerical
simulation
results,a
new
correlation
formula
was
presented
.
Keywords
:
longitudinal
tube
banks
#
turbulent
flow
#
convective
heat
transfer
#
numerical
simulation
#
correlation
formula
纵掠管束强制对流换热在工业上有广泛的应
用,对其进行准确的计算具有重要价值.一些传热学
教科书,例如,杨世铭与陶文铨[1]编
著的《传热学》和
《换热器设计手册》[2],将纵掠管束强制对流换热计
lon
收稿
日期:
2016-04 - 24
基金项目:国家自然科学基金资助项目(
51476
103);
上海市教委科研创新项目(
14ZZ134
);上海市质量技术监督局公益
科研
项目(
2012-41,2012 - 12)
第一作者:杨茉(
I9
58-)
,男,教授
.
研究方向
:
传热数值技术
.E-ma
il:yangm@