Known bugs in v2.0.0

This page contains an overview of known bugs in KineticGas 2.0.0, along with information regarding patch status and possible workarounds.

ImportError cyclic import

In some cases, for some installations, importing pykingas causes an ImportError to be raised. This appears to occur most commonly when pykingas has been installed on the system level with Anaconda.

Workaround

• The bug has never been observed when installing to a properly set up virtual environment.

If you are running a system level interpreter, uninstall pykingas, set up a virtual environment, and reinstall pykingas to that virtual environment.

Status

• Newer versions have a more robust import system

Ideal gas thermal_diffusion_ratio

Models initialised with is_idealgas=True will produce incorrect thermal diffusion ratios ($k_{T,i}$). This bug does not effect other properties.

Status

• Fixed in later versions

Multicomponent (> 2) thermal properties

For multicomponent (more than two species) mixtures, properties relying on the the coefficients $\ell_i^{(0)}$ and $\ell_i^{(1)}$ (see: Eq. (6), (13), (15) and (24) in Revised Enskog Theory for Mie Fluids) are incorrect. This bug effects the methods

• thermal_conductivity / thermal_coductivity_tp
• thermal_diffusion_coeff / thermal_diffusion_coeff_tp
• thermal_diffusion_factor / thermal_diffusion_factor_tp
• thermal_diffusion_ratio / thermal_diffusion_ratio_tp
• soret_coefficient / soret_coefficient_tp

Status

• Fixed in later versions