Aorta3d Example

[mehrdadvasheghanifarahani]

Dear OpenLB community,

In the example aorta3d, I see that 0.02246 has been considered as the value of the characteristics length. See below:

UnitConverter<T,DESCRIPTOR> converter(
(T) 0.02246/N, // physDeltaX: spacing between two lattice cells in __m__
(T) 0.02246/(M*N), // physDeltaT: time step in __s__
(T) 0.02246, // charPhysLength: reference length of simulation geometry
(T) 0.45, // charPhysVelocity: maximal/highest expected velocity during simulation in __m / s__
(T) 0.003/1055., // physViscosity: physical kinematic viscosity in __m^2 / s__
(T) 1055 // physDensity: physical density in __kg / m^3__
);

Could you please let me know why this specific value has been assigned? In fact, where does it come from? I think this should be something related to the stl file imported to the simulation engine.

Kind Regards,
Mehrdad

[mathias]

This is the diameter of the inflow crosssection in SI units. Thats what was measured by CT scan.

[mehrdadvasheghanifarahani]

Hi Mathias,

Thanks very much for clarifying this.

Kind Regards,
Mehrdad

[Author]

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