Fluid Class#

class rocketpy.Fluid[source]#

Class that represents a fluid object and its attributes, such as density.

Variables:

name (str) – Name of the fluid.
density (int, float, callable, string, array, Function) – Input density of the fluid in kg/m³. Used internally to compute the density_function.
density_function (Function) – Density of the fluid as a function of temperature and pressure.

__init__(name, density)[source]#

Initializes a Fluid object.

Parameters:

name (str) – Name of the fluid.
density (int, float, callable, string, array, Function) –
Density of the fluid in kg/m³ as a function of temperature and pressure. If a int or float is given, it is considered a constant function. A callable, csv file or an list of points can be given to express the density values. The parameter is used as a Function source.

See more on rocketpy.Function source types.

property density_function#: Density of the fluid as a function of temperature and pressure.

get_time_variable_density(temperature, pressure)[source]#

Get the density of the fluid as a function of time.

Parameters:

Returns:

Density of the fluid in kg/m³ as function of time.

Return type:

Function

__repr__()[source]#

Representation method.

String method.