def test_CSTR_load():
dict1 = {'Tank': {0: [-0.2, 1.0, 0.0]}}
conc = []
conc1 = []
flow = []
flow1 = []
with Simulation("./inps/tank_constantinflow_notreatment.inp") as sim:
CS = Node_Quality(sim, dict1)
Tank = Nodes(sim)["Tank"]
Valve = Links(sim)["Valve"]
for index, step in enumerate(sim):
CS.CSTR_solver(index)
c = Tank.pollut_quality
conc.append(c['P1'])
c1 = Valve.pollut_quality
conc1.append(c1['P1'])
flow.append(sim._model.getNodeResult("Tank", 0))
flow1.append(sim._model.getLinkResult("Valve", 0))
load = [a * b for a, b in zip(conc, flow)]
cum_load = np.cumsum(load)
load1 = [a * b for a, b in zip(conc1, flow1)]
cum_load1 = np.cumsum(load1)
error = (cum_load1[-1] / cum_load[-1]) / cum_load1[-1]
print(error)
assert error <= 0.03
def test_CSTR_steadystate():
dict1 = {'Tank': {0: [-0.2, 1.0, 0.0]}}
conc = []
with Simulation("./inps/tank_constantinflow_notreatment.inp") as sim:
CS = Node_Quality(sim, dict1)
Tank = Nodes(sim)["Tank"]
for index, step in enumerate(sim):
CS.CSTR_solver(index)
c = Tank.pollut_quality
conc.append(c['P1'])
C_steadystate = 10.0 / (1 + (0.2 / (5 / 127)))
print(C_steadystate)
error = (C_steadystate - conc[-1]) / C_steadystate
print(error)
assert error <= 0.03
