织物传热传湿过程中热阻与湿阻的耦合研究

在人体通过衣服向外界的热湿传递过程中，织物的显热和潜热传递会彼此影响，一方面，织物中水汽的变化会引起织物物性参数的改变，因而会改变织物的传热传湿过程，另一方面，织物中水汽的凝结（或蒸发）会释放（或吸收）热量，这又将改变织物中的温度分布，影响到显热传递，上述变化是一个耦合的过程，织物的热阻和湿阻会因为彼此的改变而改变。本文对这种耦合现象进行了数学模型分析，并对一些影响因素进行了分析和讨论。     

法国Carrier喷嘴绝热加湿过程的研究

本文首先在原有的法国Carrier喷淋室布置下对该喷淋室的热工性能进行了校验,在此基础上对原资料进行了补充;第二,在改变了喷淋室构件布置的情况下再次对该喷淋室的热工性能进行研究,得出了不同布置方式下的加湿效率的计算曲线和计算公式,同时对各种布置方式进行了比较,丰富和发展了Carrier喷水室的理论,并且为设计使用单位提供了更多的选择。     

高温湿空气热物理性质计算方程

由于高温状态下温空气不能作为理想气体处理。为此,文章依据二元组分混合气体性质,根据实际气体压缩因子和维利状态方程,建立了由空气温度、压力和相对湿度表达的高温湿空气热物理性质的计算方程,并为方便工程计算,将这些方程整理成为相应的修正系数乘以纯干空气的热物理系数。     

织物单元结构传热的数值模拟研究

通过建立模拟织物单元结构二维传热的数值模型来研究在热量从人体皮肤通过织物传递的情况下，织物内部的温度场分布特点，比较了两种不同结构的织物的传热，并对织物横向的导热对织物内温度场的影响进行了一定的分析，模拟计算的结果表明织物结构是影响导热过程中织物温度分布的主要因素。     

Numerical Simulation and Experimental Studies of Air Treatment Process with Water Spray of One Row Counter Flow

The present work is focused on heat and mass transfer in a direct evaporative air cooler of one row counter flow spray. Models of the two-phase flow in such a air treatment system have been developed. The fields of temperature and relative humidity in spray chamber, as well as the trajectories of sprayed drops have been obtained by numerical method. Experiments aiming at quantifying the system performance and its influence factors have been conducted. It indicates that the increase of air velocity and water/air ratio while thedecrease of nozzle density are favorable. The performance of the system of parallel flow spray and counter flow spray have been compared by means of humidifying efficiency. Comparison between numerical simulation and experimental results demonstrate good agreement for outlet air temperature with a maximum error of 8% observed for air relative humidity.     

置换通风在纺织厂应用的探讨

从置换通风的基本理论和纺织厂空气调节的具体情况出发，借助CFD手段，研究了采用置换通风时纺织厂各车间的送风量的确定，能源消耗，气流组织，温度分布以及空气品质等问题，结果表明，大多数车间在应用置换通风系统后有较为明显的节能效果，且在空气品质方面也具有一定的优势。     

Numerical Simulation and Experimental Studies of Air Treatment Process with Water Spray of One Row Parallel Flow

The main purpose of the present work is to make a further insight into the procedure of heat and mass transfer between water droplets sprayed and air stream in a direct evaporative air cooler used in air-conditioning system in textile mills. The thermodynamic models of the two-phase flow in such a air treatment system have been developed for one row parallel flow spray. The fields of temperature and relative humidity in spray chamber, as well as the trajectories of sprayed drops have been obtained by calculation. A series of experiment aiming at quantifying the system performance and its influence factors have been conducted. It indicates that the increases of air velocity and water/air ratio while the decrease of nozzle density are favorable. Finally, the comparison between numerical simulation and experimental results have been carried out. Good agreements have been found for outlet air temperature while a maximum error of 10% has been observed for air relative humidity.     

Numerical Method for Heat and Mass Transfer in Air Washer-2.Spray Drop Trajectories of Horizontal Parallel Flow

Air Washer are employed in large air-conditioning sys-tems for dust removal and for evaporative cooling withappropriate design which can result in energy saving.Topredict the heat and mass transfer in water spray-air-flow system,a two-dimensional numerical model simu-lating the conservation of mass,momentum and energyof air and water are developed.Further,drop trajecto-ries in the case of horizontal parallel flow in air washerhave been simulated.The results of the simulations areused to investigate the effect of the initial droplet size,the spray angle and the airflow velocity on the drop ve-locity field and drop trajectories.     

一种基于局部与全局表征交叉耦合的脑卒中病灶分割网络模型

由于脑卒中严重程度不同,病灶位置、形状和面积有较大差异,导致目前基于深度学习的分割方法仍还不够理想.针对脑卒中病灶特征,提出了一种新的U型分割网络,该网络的编码器是一个结合Transformer和卷积网络的双分支混合架构,该结构特点是在构建图像层次化特征过程中将基于Transformer的全局特征和基于卷积网络的局部特征进行交叉学习,促进编码器在训练和推理过程中将两种风格的特征相互增强.此外,为了增强小目标、弱边缘的特征表达,构建了合并模块将编码器得到的两种风格的层次化特征进行融合,并将融合后特征输送到一个级联的上采样器中预测病灶区域,以及设计了一个结合Dice函数和Focal函数的损失函数用以缓解小病灶区域造成的前景与背景数据之间的数据不平衡问题.所提出的方法在一个开源脑卒中数据集进行了验证,与其他相关方法相比,所提出的方法在分割精度、效率等方面均表现出较好的性能.     

服装传热传湿的分析与研究

从分析服装的传热传湿的机理出发，在总结前人实验及理论研究成果的基础上，对服装传热传湿性能及数学模拟进行了一定的探讨和分析，并指出了前人研究中值得改进和加强之处。