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本文采用纳入处理压力—速度耦合关系的新算法IDEAL的三维自编程序对外形尺寸(长×宽×高)为240mm×115 mm×90 mm、240 mm×115 mm×115 mm、240 mm×115 mm×140 mm、240 mm×115 mm×165 mm 4种高度共200种规格(每个高度50种规格)的空心砖进行了包括导热、对流及辐射换热复杂传热过程性能的数值模拟,旨在揭示在空心砖内部孔数及排列方式、长度和宽度相同的情况下,空心砖高度变化对其砌筑墙体当量导热系数的影响。结果表明:在研究的范围内,除个别砖型外,随着高度的增加,空心砖墙体的当量导热系数呈下降的趋势。当宽度方向的孔洞数给定时,随长度方向的孔洞数的增加,下降幅度先增加后减少,最大的降幅6.1%。
In this paper, a new self-programming program based on IDEAL, which is a new algorithm to deal with the pressure-speed coupling, is adopted. The dimensions (length × width × height) are 240mm × 115mm × 90mm, 240mm × 115mm × 115mm, 240mm × 115 mm × 140 mm, 240 mm × 115 mm × 165 mm Hollow bricks of 200 kinds of specifications (50 kinds of specifications for each height) of 4 kinds of heights were carried out. The numerical simulation of heat transfer, convection and radiation heat transfer complicated heat transfer process The effects of the height of hollow brick on the equivalent thermal conductivity of masonry walls were revealed under the condition of the same number of holes, arrangement, length and width of the hollow bricks. The results show that within the scope of the study, with the exception of individual brick types, the equivalent thermal conductivity of hollow brick walls tends to decrease with the height increase. When the width of the number of holes given, with the length of the hole number increases, the decline increased first and then decreased, the largest decline of 6.1%.