ABSTRACT
The two-dimensional RNG flow mathematic model [2] include: continuity equation, momentum equation, k-equation, and ε-equation. The general form of this equations [2-4]:
∂ ∂
∂ ∂
+ ∂ ∂
=
∂ ∂
∂ ∂
⎛⎝ ⎞ ∂ ∂
∂ ⎛ ⎝
⎞ ⎠
t x y
x h
x y⎠ ∂ y
( )h ( )h ( )hvφ φ+ u φ
φ φ hφ φΓ + ⎜ Γ ⎟ + S yφ ( ,x ) (1)
where φ is common variables, Γφ is the diffusion coefficient and S yφ ( ,x ) is the source term, its meaning and calculation formula of the coefficient of reference literature [2]. The transverse circulation in curved channel has a great impact on flow transport in drains.
