flow360.GenericReferenceCondition

class GenericReferenceCondition

Bases: MultiConstructorBaseModel

Operating condition defines the physical (non-geometrical) reference values for the problem.

Example

• Define GenericReferenceCondition with from_mach():

  >>> fl.GenericReferenceCondition.from_mach(
  ...     mach=0.2,
  ...     thermal_state=ThermalState(),
  ... )
  

• Define GenericReferenceCondition with velocity_magnitude:

  >>> fl.GenericReferenceCondition(velocity_magnitude=40 * fl.u.m / fl.u.s)
  

---

type_name: Literal['GenericReferenceCondition'] = 'GenericReferenceCondition'

velocity_magnitude: VelocityType.Positive | None = None

Freestream velocity magnitude. Used as reference velocity magnitude when reference_velocity_magnitude is not specified. Cannot change once specified.

thermal_state: ThermalState = ThermalState(type_name='ThermalState', private_attribute_constructor='default', private_attribute_input_cache=ThermalStateCache(altitude=None, temperature_offset=None), temperature=unyt_quantity(288.15, 'K'), density=unyt_quantity(1.225, 'kg/m**3'), material=Air(type='air', name='air', dynamic_viscosity=Sutherland(reference_viscosity=unyt_quantity(1.716e-05, 'Pa*s'), reference_temperature=unyt_quantity(273.15, 'K'), effective_temperature=unyt_quantity(110.4, 'K'))))

Reference and freestream thermal state. Defaults to US standard atmosphere at sea level.

classmethod from_mach(mach, thermal_state=ThermalState(type_name='ThermalState', private_attribute_constructor='default', private_attribute_input_cache=ThermalStateCache(altitude=None, temperature_offset=None), temperature=unyt_quantity(288.15, 'K'), density=unyt_quantity(1.225, 'kg/m**3'), material=Air(type='air', name='air', dynamic_viscosity=Sutherland(reference_viscosity=unyt_quantity(1.716e-05, 'Pa*s'), reference_temperature=unyt_quantity(273.15, 'K'), effective_temperature=unyt_quantity(110.4, 'K')))))

Constructs a reference condition from Mach number and thermal state.

Parameters:

• mach (Annotated[float, Gt(gt=0)])

• thermal_state (ThermalState)

property mach: Annotated[float, Gt(gt=0)]

Computes Mach number.