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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Heat Transfer Research
Импакт фактор: 1.199 5-летний Импакт фактор: 1.155 SJR: 0.267 SNIP: 0.503 CiteScore™: 1.4

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

Выпуски:
Том 51, 2020 Том 50, 2019 Том 49, 2018 Том 48, 2017 Том 47, 2016 Том 46, 2015 Том 45, 2014 Том 44, 2013 Том 43, 2012 Том 42, 2011 Том 41, 2010 Том 40, 2009 Том 39, 2008 Том 38, 2007 Том 37, 2006 Том 36, 2005 Том 35, 2004 Том 34, 2003 Том 33, 2002 Том 32, 2001 Том 31, 2000 Том 30, 1999 Том 29, 1998 Том 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2018019407
pages 255-273

ANALYSIS OF TRANSIENT TEMPERATURE FIELD CHARACTERISTICS INSIDE A LARGE-SCALE THERMAL CYCLING TEST CAVITY FOR SPACECRAFT

Guang Yang
Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, 200240, China
Liangjun Zhang
Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, 200240, China; Shanghai Key Laboratory of Spacecraft Mechanism, Aerospace System Engineering Shanghai, 201108 Shanghai, China
Jingyi Wu
Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, 200240, China
Yiye Huang
Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, 200240, China
Aifeng Cai
Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai, 200240, China

Краткое описание

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.


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