装修材料VOC散发过程的数学模型以及数值模拟的一般方法

The mathematical model for the VOC emission from furnishing materials and it's general simulation method

根据干性装修材料VOC散发过程的传质机理,对于刚装修过的自然通风的房间,建立起一套通用的数学模型。对于此模型,运用差分格式将其离散化,在材料内部、边界、散发表面以及房间主流区分别建立节点方程,这样只要初始状态一定,运用迭代法就可计算出各个时刻各节点的浓度值。

According to the mass transfer mechanism of the VOC emission from dry fuinishing materials,construct a set of general mathematical models for the unforce ventilative rooms which were just decorated.Discretize them by difference scheme,and construct node equations respectively inside the materials,at the boundary,at the emission inerface and in the room air.Given the initial condition,we can calculate the concentration on every node and time by iterative method.