@article{oai:toyama.repo.nii.ac.jp:00004533, author = {山口, 信吉 and 若林, 嘉一郎}, journal = {富山大学工学部紀要}, month = {Feb}, note = {We introduced a function of moisture content defined by φ = ∫ Ddw and then expressed the diffusion equation by using the function φ instead of moisture content w. It was found that the finite difference method of the diffusion equation used φ did not have any contradicting content as mentioned previous paper. The calculation method of the function φ was described in detail for radial diffusion in a sphere during drying. It was also shown that the dimensionless term ΔtD(W)/Δr^2 which correspnded to a transition probability had to be in the range of 0--1/6., φ=∫Ddwで定義される関数φを導入し,含水率wの代わりにその関数φを用いて拡散方程式を表現した。この関数φを用いた拡散方程式の階差法には,前報で述べたような矛盾はないことがわかった。乾燥過程における球内半径方向拡散の場合のφの計算法が詳細に述べられた。また,遷移確率に相当する無次元項ΔtD(W)/Δr^2 は,0~1/6の範囲にあるべきであることが示された。, Article, 富山大学工学部紀要,47, Page 157-166}, pages = {157--166}, title = {乾燥過程における固体内水分拡散方程式の数値解(第3報) : 関数φ=∫Ddwの導入}, volume = {47}, year = {1996} }