BackgroundField

class osaft.core.backgroundfields.BackgroundField(fluid, p_0, wave_type=WaveType.STANDING, position=None)[source]

Bases: object

BackgroundField class which is a base class for all background field classes

Parameters

fluid (InviscidFluid) – fluid for to be used for the background field
p_0 (float) – pressure amplitude in [Pa]
wave_type (WaveType, optional) – wave type: either standing or traveling / travelling
Default: WaveType.STANDING
position (None | float, optional) – position of the scatterer in the standing wave in [rad]
Default: None

Public Data Attributes:

`p_0`	Background pressure amplitude of the acoustic field [Pa]
`wave_type`	Wave type of the acoustic background field
`position`	Position of the particle in an acoustic standing wave field [rad]
`abs_pos`	Absolute position of the scatterer in the standing wave in [m]
`A`	Amplitude of the pressure wave [Pa]
`abs_A_squared`	\(A\,\text{conj}(A) = \|A\|^2\) [Pa^2]
`E_ac`	Mean acoustic energy density [J/m^3]
`I_ac`	Acoustic intensity / energy flux density [W/m^2]
`f`	wrapper for `osaft.core.fluids.InviscidFluid.f`
`omega`	wrapper for `osaft.core.fluids.InviscidFluid.omega`
`c_f`	wrapper for `osaft.core.fluids.InviscidFluid.c_f`
`rho_f`	wrapper for `osaft.core.fluids.InviscidFluid.rho_f`
`eta_f`	wrapper for `osaft.core.fluids.ViscousFluid.eta_f`
`zeta_f`	wrapper for `osaft.core.fluids.ViscousFluid.zeta_f`
`eta_p`	wrapper for `osaft.core.fluids.ViscoelasticFluid.eta_p`
`zeta_p`	wrapper for `osaft.core.fluids.ViscoelasticFluid.zeta_p`
`lambda_M`	wrapper for `osaft.core.fluids.ViscoelasticFluid.lambda_M`
`lambda_f`	wrapper for `osaft.core.fluids.InviscidFluid.lambda_f`
`k_f`	wrapper for `osaft.core.fluids.InviscidFluid.k_f`
`k_v`	wrapper for `osaft.core.fluids.ViscousFluid.k_v`
`kappa_f`	wrapper for `osaft.core.fluids.ViscousFluid.kappa_f`

Public Methods:

Incident amplitude at order n [Pa]

A_in(n)[source]

Incident amplitude at order n [Pa]

Parameters: n (int) – order
Return type: complex

property A: complex

Amplitude of the pressure wave [Pa]

Return type: complex

property E_ac: float

Mean acoustic energy density [J/m^3]

Return type: float

property I_ac: float

Acoustic intensity / energy flux density [W/m^2]

Return type: float

property abs_A_squared: float

\(A\,\text{conj}(A) = |A|^2\) [Pa^2]

Return type: float

property abs_pos: float

Absolute position of the scatterer in the standing wave in [m]

Return type: float

property c_f: float

wrapper for osaft.core.fluids.InviscidFluid.c_f

Return type: float

property eta_f: float

wrapper for osaft.core.fluids.ViscousFluid.eta_f

Return type: float

property eta_p: float

wrapper for osaft.core.fluids.ViscoelasticFluid.eta_p

Return type: float

property f: float

wrapper for osaft.core.fluids.InviscidFluid.f

Return type: float

property k_f: float

wrapper for osaft.core.fluids.InviscidFluid.k_f

Return type: float

property k_v: complex

wrapper for osaft.core.fluids.ViscousFluid.k_v

Return type: complex

property kappa_f: float

wrapper for osaft.core.fluids.ViscousFluid.kappa_f

Return type: float

property lambda_M: float

wrapper for osaft.core.fluids.ViscoelasticFluid.lambda_M

Return type: float

property lambda_f: float

wrapper for osaft.core.fluids.InviscidFluid.lambda_f

Return type: float

property omega: float

wrapper for osaft.core.fluids.InviscidFluid.omega

Return type: float

property p_0: float

Background pressure amplitude of the acoustic field [Pa]

Getter: returns the value for the pressure amplitude
Setter: automatically invokes osaft.core.variable.BaseVariable.notify()
Return type: float

property position: float

Position of the particle in an acoustic standing wave field [rad]

Getter: returns the wave type
Setter: automatically invokes osaft.core.variable.BaseVariable.notify()
Return type: float

property rho_f: float

wrapper for osaft.core.fluids.InviscidFluid.rho_f

Return type: float

property wave_type: WaveType

Wave type of the acoustic background field

Getter: returns the wave type
Setter: automatically invokes osaft.core.variable.BaseVariable.notify()
Return type: WaveType

property zeta_f: float

wrapper for osaft.core.fluids.ViscousFluid.zeta_f

Return type: float

property zeta_p: float

wrapper for osaft.core.fluids.ViscoelasticFluid.zeta_p

Return type: float