Indexed by:期刊论文
Journal:计算机应用研究
Included Journals:PKU
Volume:36
Issue:10
Page Number:3004-3007
ISSN No.:1001-3695
Key Words:反问题;热边界条件;吉洪诺夫正则化;最小二乘;计算流体力学
Abstract:针对目前反向计算模型还无法实现对建筑室内边界对流换热量进行反向计算这一制约性差距,采用温度贡献率方法,将边界对流换热量与室内测点温度之间表示成因果关系的温度贡献因子矩阵,基于计算流体力学,将最小二乘与Tikhonov正则化方法相结合,建立依据室内数个测点的离散温度求解边界对流换热量的反问题数学模型.应用三维通风空腔和某建筑内一间办公室进行实验验证,模型求解值与实测值的均方根差均小于80%,结果表明反向计算模型可以准确对室内边界对流换热量进行求解.
Date of Publication:2018-07-09
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