RT Journal Article
ID 7b14d9f814cddaf8
A1 Yang, Guang
A1 Zhang, Liangjun
A1 Wu, Jingyi
A1 Huang, Yiye
A1 Cai, Aifeng
T1 ANALYSIS OF TRANSIENT TEMPERATURE FIELD CHARACTERISTICS INSIDE A LARGE-SCALE THERMAL CYCLING TEST CAVITY FOR SPACECRAFT
JF Heat Transfer Research
JO HTR
YR 2018
FD 2018-02-21
VO 49
IS 3
SP 255
OP 273
K1 thermal cycling test
K1 temperature uniformity
K1 turbulent mixed convection
K1 buoyancy
K1 rectangular cavity
AB The transient temperature field characteristics inside the test cavity of a large-scale thermal cycling test system for space-craft were investigated by numerical simulation as well as experiments conducted in a full-scale system. The temperature profile in a cooling or heating process was found to be strongly affected by the buoyancy force. The temperature profile was vertically stratified if buoyancy assisted the inlet flow while it was unstable if the buoyancy opposed the inlet flow. The influences of inlet flow rate (4 × 103 ≤ Re ≤ 1 × 105), cooling or heating rate (± 3 K/min ≤ Δ ≤ ± 20 K/min), and thermal
conductivity of the solid walls (0 ≤ ks ≤ ∞) on the temperature uniformity, heating/cooling efficiency, and energy losses were also investigated in detail, providing useful parameters for the design and operation of large-scale thermal cycling test systems at high temperature differences.
PB Begell House
LK https://www.dl.begellhouse.com/journals/46784ef93dddff27,4ba7f41800ddf720,7b14d9f814cddaf8.html