【摘要】 <正>引言 随着生活水平的提高,人们对穿着的要求也越来越高,热湿舒适性是服装服用性能的一个重要方面,考虑人一服装一环境,这样一个系统,服装在人体和外界环境中起到一个中介作用,在这个系统中,人体由于新陈代谢要散发热量并排出汗液和别的排泄物.这些热量、汗水及挥发的汗气要通过服装的中介作用而传向外界,而外界环境的温度、湿度、气流、辐射、光照等则要经服装的阻隔或吸收而作用(或)影响于人体.人可以通过服装的加减、选择、改变着装方式调节人体周围微气候区的气候,人体本身也可以视气候环境作出有限度的自适应调节.在这里,服装、人体、环境三者构成了一个相互联系协调的体系,更多还原

【Abstract】 The study progress of heat and moisture transfer within fabric is reviewed. For the time area, a mixed algorithm with precise time integration and finite difference for solution of a transient thermal and humidity field in porous fabric is presented. For space area, the finite element is applied. To avoid the unreasonable phenomena such as jump or vibratility in initial time step for solution thermal and moisture equations by finite element, the lumped mass heat capacity matrix and moisture capacity matrix is applied. The sorption or desorption rate of water by the fibers is considered as collection or source and a scheme of the predigested precise time integration is advanced.更多还原