def time_col_turbulent(EnergyDis, ConcAl, ConcClay, coag, material,
                       DiamTarget, DIM_FRACTAL):
    """Calculate single collision time for turbulent flow mediated collisions.

    Calculated as a function of floc size.
    """
    return((1/6) * (6/np.pi)**(1/9) * EnergyDis**(-1/3) * DiamTarget**(2/3)
           * frac_vol_floc_initial(ConcAl, ConcClay, coag, material)**(-8/9)
           * (DiamTarget / material.Diameter)**((8*(DIM_FRACTAL-3)) / 9)
           )
Calculate single collision time for turbulent flow mediated collisions.

    Calculated as a function of floc size.