ThermalState#

class ThermalState[source]#

Bases: MultiConstructorBaseModel

Represents the thermal state of a fluid with specific properties.

Example

>>> fl.ThermalState(
...     temperature=300 * fl.u.K,
...     density=1.225 * fl.u.kg / fl.u.m**3,
...     material=fl.Air()
... )

Attributes

temperature: AbsoluteTemperatureType#

The temperature of the fluid.

Default:

288.15 * K

density: DensityType.Positive#

The density of the fluid.

Default:

1.225 * kg/m**3

material: Air#

The material of the fluid.

Default:

Air()

Properties

altitude: LengthType, optional#

Return user specified altitude.

temperature_offset: DeltaTemperatureType, optional#

Return user specified temperature offset.

speed_of_sound: VelocityType.Positive#

Computes speed of sound.

pressure: PressureType.Positive#

Computes pressure.

dynamic_viscosity: ViscosityType.Positive#

Computes dynamic viscosity.

Additional Constructors

classmethod from_standard_atmosphere(altitude=0 * m, temperature_offset=0 * K)[source]#

Constructs a ThermalState instance from the standard atmosphere model.

Parameters:
  • altitude (LengthType, optional) – The altitude at which the thermal state is calculated. Defaults to 0 * u.m.

  • temperature_offset (DeltaTemperatureType, optional) – The temperature offset to be applied to the standard temperature at the given altitude. Defaults to 0 * u.K.

Returns:

A thermal state representing the atmospheric conditions at the specified altitude and temperature offset.

Return type:

ThermalState

Notes

  • This method uses the StandardAtmosphereModel to compute the standard atmospheric conditions based on the given altitude.

  • The temperature_offset allows for adjustments to the standard temperature, simulating non-standard atmospheric conditions.

Examples

Create a thermal state at an altitude of 10,000 meters:

>>> thermal_state = ThermalState.from_standard_atmosphere(altitude=10000 * u.m)
>>> thermal_state.temperature
<calculated_temperature>
>>> thermal_state.density
<calculated_density>

Apply a temperature offset of -5 Fahrenheit at 5,000 meters:

>>> thermal_state = ThermalState.from_standard_atmosphere(
...     altitude=5000 * u.m,
...     temperature_offset=-5 * u.delta_degF
... )
>>> thermal_state.temperature
<adjusted_temperature>
>>> thermal_state.density
<adjusted_density>
classmethod from_file(filename)#

Loads a Flow360BaseModel from .json, or .yaml file.

Parameters:

filename (str) – Full path to the .yaml or .json file to load the Flow360BaseModel from.

Returns:

An instance of the component class calling load.

Return type:

Flow360BaseModel

Example

>>> params = Flow360BaseModel.from_file(filename='folder/sim.json') 

Methods

help(methods=False)#

Prints message describing the fields and methods of a Flow360BaseModel.

Parameters:

methods (bool = False) – Whether to also print out information about object’s methods.

Return type:

None

Example

>>> params.help(methods=True) 
to_file(filename, **kwargs)#

Exports Flow360BaseModel instance to .json or .yaml file

Parameters:

filename (str) – Full path to the .json or .yaml or file to save the Flow360BaseModel to.

Return type:

None

Example

>>> params.to_file(filename='folder/flow360.json')