Mechanism Study And Simulation Analysis On The Heat And Moisture Transfer Through Fabrics

Based on the general review of the research method and history of the heat and moisture transfer through clothing, a new theoretical model which could be used to derive the distribution of temperature, moisture and total press in fabrics is proposed in this thesis. The classical conservation theories of mass, energy and momentum are combined with the geometrical, physical features of fibers, yarns, and fabrics in order to get the mathematical descriptions of the transport phenomena in a volume unit including phase-change, absorption and desorption process etc..In this paper, the mathematical model is three-dimension discreted by means of the implicit difference method. The computer program to simulate the heat and moisture transfer through fabrics has been designed in MATLAB language.To certificate the model, multi-functional test equipment for human-made environments and other available experimental apparatus are employed to obtain the values of the model and the experimental data is demonstrated. It confirms the model and the way to deal with the boundary conditions.This new model has been used to simulate the heat and moisture transport through fabrics. The distributions of the temperature, moisture density, total pressure in fabrics can be gotten through the simulation.