assign_resistance

Icepak.assign_resistance(objects, boundary_name=None, total_power='0W', fluid='air', laminar=False, loss_type='Device', linear_loss=['1m_per_sec', '1m_per_sec', '1m_per_sec'], quadratic_loss=[1, 1, 1], linear_loss_free_area_ratio=[1, 1, 1], quadratic_loss_free_area_ratio=[1, 1, 1], power_law_constant=1, power_law_exponent=1, loss_curves_x=[[0, 1], [0, 1]], loss_curves_y=[[0, 1], [0, 1]], loss_curves_z=[[0, 1], [0, 1]], loss_curve_flow_unit='m_per_sec', loss_curve_pressure_unit='n_per_meter_sq')

Assign resistance boundary condition.

Parameters:

objectslist or str

A list of objects to which the resistance condition will be assigned. It can be a single object (a string) or multiple objects specified as a list.

boundary_namestr, optional

The name of the boundary object that will be created. If not provided, a unique name is generated. The default is None.

total_powerstr, float, or dict or BoundaryDictionary, optional

The total power transferred to the fluid through the resistance volume. It is specified as a string with a value and unit, a float where the default unit “W” is used. Assign a transient condition using the result of a function with the create_*_transient_assignment pattern. Default is "0W".

fluidstr, optional

The material of the volume to which the resistance is being assigned. Default is "air".

laminarbool, optional

Whether the flow inside the volume must be treated as laminar or not. Default is False.

loss_typestr, optional

Type of pressure loss model to be used. It can have one of the following values: "Device", "Power Law", and "Loss Curve". Default is "Device".

linear_losslist of floats or list of strings, optional

Three values representing the linear loss coefficients in the X, Y, and Z directions. These coefficients can be expressed as floats, in which case the default unit "m_per_sec" will be used, or as strings. Relevant only if loss_type=="Device". Default is "1m_per_sec" for all three directions.

quadratic_losslist of floats or list of strings, optional

Three values representing the quadratic loss coefficients in the X, Y, and Z directions. Relevant only if loss_type=="Device". Default is 1 for all three directions.

linear_loss_free_area_ratiolist of floats or list of strings, optional

Three values representing the linear loss free area ratio in the X, Y, and Z directions. Relevant only if loss_type=="Device". Default is 1 for all three directions.

quadratic_loss_free_area_ratiolist of floats or list of strings, optional

Three values representing the quadratic loss coefficient for each direction (X, Y, Z) in the loss model. Relevant only if loss_type=="Device". Default is 1 for all three directions.

power_law_constantstr or float, optional

Specifies the coefficient in the power law equation for pressure loss. Default is 1.

power_law_exponentstr or float, optional

Specifies the exponent value in the power law equation for pressure loss calculation. Default is 1.

loss_curves_xlist of lists of float

List of two list defining the loss curve in the X direction. The first list contains the mass flow rate value of the curve while the second contains the pressure values. Units can be specified with the loss_curve_flow_unit and loss_curve_pressure_unit parameters. Default is [[0,1],[0,1]].

loss_curves_ylist of lists of float

List of two list defining the loss curve in the Y direction. The first list contains the mass flow rate value of the curve while the second contains the pressure values. Units can be specified with the loss_curve_flow_unit and loss_curve_pressure_unit parameters. Default is [[0,1],[0,1]].

loss_curves_zlist of lists of float

List of two list defining the loss curve in the Z direction. The first list contains the mass flow rate value of the curve while the second contains the pressure values. Units can be specified with the loss_curve_flow_unit and loss_curve_pressure_unit parameters. Default is [[0,1],[0,1]].

loss_curve_flow_unitstr, optional

Specifies the unit of flow rate in the loss curvev (for all directions). Default is "m_per_sec".

loss_curve_pressure_unitstr, optional

Specifies the unit of pressure drop in the loss curve (for all directions). Default is "n_per_meter_sq".

Returns:

pyaedt.modules.Boundary.BoundaryObject

Boundary object when successful or None when failed.

References

>>> oModule.AssignResistanceBoundary