$C_{1\epsilon }=\max \left[0.43,\left(\frac{\eta }{\eta +5}\right)\right]$

$\eta =S\frac{k}{\epsilon }$

$C_{2\epsilon }=1.9$

$U^{*}=\sqrt{S_{ij}{S}_{ij}+{\tilde{\Omega }}_{ij}{\tilde{\Omega }}_{ij}}$

$\varphi =\frac{1}{3}{\cos }^{-1}\left(\sqrt{6}W\right)$

$S=\sqrt{2S_{ij}{S}_{ij}}$

$S_{ij}=\frac{1}{2}\left(\frac{\partial u_j}{\partial x_i}+\frac{\partial u_i}{\partial x_j}\right)$

${\nu }_t=C_{\mu }\frac{k^2}{\epsilon }$

$A_0=4.04$

$A_s=\sqrt{6}\cos \varphi$

${\sigma }_k=1.00$

$W=\frac{S_{ij}{S}_{jk}{S}_{ki}}{{\tilde{S}}^3}$

$\tilde{S}=\sqrt{S_{ij}{S}_{ij}}$

$C_{\mu }=\frac{1}{A_0+A_s\frac{k{U}^{*}}{\epsilon }}$

${\tilde{\Omega }}_{ij}={\Omega }_{ij}-2{\epsilon }_{ijk}{\omega }_k$

${\Omega }_{ij}={\overline{\Omega }}_{ij}-{\epsilon }_{ijk}{\omega }_k$

${\sigma }_{\epsilon }=1.20$