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View Code? Open in Web Editor NEWGas models, combustion and gas turbine solver.
License: MIT License
Gas models, combustion and gas turbine solver.
License: MIT License
Whenever a Combustion()
is initiated, the fuel and oxidixer proposed for the combustion are checked within a list that is hard-coded at Combustion.__init__
. The list is very limited and the species name do not coincide with the name of the gas in PerfectIdealgas
or SemiperfectIdealGas
.
The list of accepted fuels and oxidixers should be expanded and it should be enough to provide the basic chemical formula instead of the name at Nasa Glenn file. I.e:
__init()__
in Combustion
checks that the literal gas species name is among the allowed fuelsIt would be more efficient to search for the basic formula instead the complete literal, i.e. search for 'C4H8' instead of 'C4H8,1-butene'
Create a new notebook with examples of usage for the Combustion class
Declare initial pressure and temperature of the combustor and the initial temperature and density of the reactants. Create it as new class properties and create a function to write the values.
Spike value when you use cp(i) with i = 1000, (K)
\ \
from pyturb.gas_models import SemiperfectIdealGas
import numpy as np
import matplotlib.pyplot as plt
t = np.linspace(200,3000)
cp = []
for i in t:
cp0 = semiperfect_air.cp(i)
cp.append(cp0)
plt.xlabel('K', fontsize=15)
plt.ylabel('c_p', fontsize=15)
plt.plot(t, cp)
plt.grid(True)
plt.show()
\ \
VisibleDeprecationWarning: Creating an ndarray from ragged nested sequences at pyturb.gas_models.height_from_temperature_isa
Create and pass tests for:
Those tests cover the features developed at Combustion
since today.
Craete a function to calculate the stoichiometric adiabatic flame temperatura of a reactive mixture in Combustion().
combustion_thermodynamics.Combustion()
#() allows gas mixtures for both fuels and oxidizers. In case of the fuel mixtures, it is not already developed, but in the case of the oxidizers mixtures, the reactants do not consider O2 in the mixture.
Juypyter notebooks with example to illustrate basic features of pyTurb:
Some of the calculations here such as isa and isoentropic flows can be found also in scikit-aero:: //github.com/AeroPython/scikit-aero#usage
Maybe you can find some inspiration there or can contribute with something ๐
Use pytest and numpy.testing to create tests for pyTurb.
Reactants with other oxidizers than air cannot compute the Fuel Air Ratio (FAR), as it is not yet implemented. As Issue #17 implements oxidizer mixtures, FAR should be easily calculated.
Use np.power
to calculate cp in SemiperfectIdealGas class when temperature is provided as a temperature. Now the user must create a for-loop and provide one temperature (discrete value) at a time.
Although there is a vast amount of species in the Nasa Glenn thermodynamic properties, it can be useful to define a new gas and use it as a Perfect or Semiperfect Ideal gas.
This feature should replicate a PerfectIdealGas or SemiperfectIdealGas object but with customized data.
If a GasMixture
is created with PerfectIdealGas
gas model, then the cp, cv, gamma, h0... should not ask for a temperature.
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