乱流拡散係数とオイラー的乱れ特性量の関係に関する基礎的研究
1985 年 1985 巻 357 号 p. 89-95
詳細
1985 年 1985 巻 357 号 p. 89-95
The relation between Lagrangian time scale and Eulerian turbulent characteristics is considered theoretically using the simple model of space-time correlation coefficient of turbulent velocity. Introducing the non-dimensional variables, the non-dimensional parameter α composed of Eulerian turbulent characteristics is derived. Then we discuss the relation between Lagrangian time scale and the non-dimensional parameter α. Numerical simulations of turbulent diffusion are made in order to prove the theoretical results.
