Is it possible to model fluid viscous effects in Dytran?

Yes, Dytran allows for the inclusion of fluid viscosity and frictional drag/loss in the Euler solver. Viscous effects can be included in both gases and liquids. It is activated by setting the viscosity entry on the EOSNA, EOSTAIT, EOSEX, or EOSGAM options.

When viscosity is active, the Euler equations are replaced by the Navier-Stokes equations. However, it is important to note that heat transfer and heat generation by viscous dissipation are not considered. A no-slip condition is enforced at the boundaries, which is crucial for simulating viscous effects accurately. 

More details can be found in knowledge base article here: https://simcompanion.hexagon.com/customers/s/article/viscosity-in-dytran-kb8011578

Yes, Dytran allows for the inclusion of fluid viscosity and frictional drag/loss in the Euler solver. Viscous effects can be included in both gases and liquids. It is activated by setting the viscosity entry on the EOSNA, EOSTAIT, EOSEX, or EOSGAM options.

When viscosity is active, the Euler equations are replaced by the Navier-Stokes equations. However, it is important to note that heat transfer and heat generation by viscous dissipation are not considered. A no-slip condition is enforced at the boundaries, which is crucial for simulating viscous effects accurately. 

More details can be found in knowledge base article here: https://simcompanion.hexagon.com/customers/s/article/viscosity-in-dytran-kb8011578