Conditional Averages and Probability Density Functions in the Passive Scalar Field

Naoya Takahashi, Tsutomu Kambe, Tohru Nakano +2

Two conditional averages for the increment Delta(x,x+r) = T(x)-T(x+r) of the scalar field are estimated for DNS data: H(Delta)=<nabla^2 Delta(x,x+r)|Delta(x,x+r)> and G(Delta)=<|na…