摘要
水分扩散系数(D)和表面交换系数(S)是描述刨花板中水分迁移的重要参数、要更精确地模拟刨花板的水分迁移过程.精确分离D和S是关键。文中采用非线性单纯形法在单一吸附曲线的条件下。求出了最佳的D和S组对。通过用平方和的负均值法(NMSS)对此法与现行通用的两种方法的计算结果进行比较.结果此法大大提高了计算精度。
The diffusion coefficient D and surface emission coemcient s are key parameters to describe themoisture transfer process in particleboard. For a more accurate simulation of the moisture sorptionprocess in particleboard. the separation of the D and S is essential. A non-linear simplex technique wasdeveloped to obtain the optimum pair of the D and S in particleboard from a single sorption curve. Theresults show that this method is much more accurate than currently existing ones after comparing withthe experimental data by negative mean sum of squares method.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
1999年第4期38-41,共4页
Journal of Northeast Forestry University
基金
国家自然科学基金!39570575
关键词
刨花板
水分
扩散系数
表面交换系数
articleboard
Moisture
Diffusion coefficient
Surface emission coefficient