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