copv.copv_solve_both Namespace Reference

Functions
	load_Z_lookup_table (csv_path)
	Z_lookup (T_K, P_Pa, interp, default_Z=1.0)
	size_or_check_copv_for_polytropic_N2 (df, config, *, n=1.2, T0_K=300.0, Tp_K=300.0, use_real_gas=True, n2_Z_csv="n2_Z_lookup.csv", pressurant_R=None, branch_temperatures_K=None, copv_volume_m3=None, copv_P0_Pa=None, copv_m0_kg=None, tol=1e-4, max_iter=60)

Function Documentation

load_Z_lookup_table()

copv.copv_solve_both.load_Z_lookup_table

(

csv_path

)

Definition at line 8 of file copv_solve_both.py.

Referenced by size_or_check_copv_for_polytropic_N2().

size_or_check_copv_for_polytropic_N2()

copv.copv_solve_both.size_or_check_copv_for_polytropic_N2	(		df,
			config,
		*	,
			n = 1.2,
			T0_K = 300.0,
			Tp_K = 300.0,
			use_real_gas = True,
			n2_Z_csv = "n2_Z_lookup.csv",
			pressurant_R = None,
			branch_temperatures_K = None,
			copv_volume_m3 = None,
			copv_P0_Pa = None,
			copv_m0_kg = None,
			tol = 1e-4,
			max_iter = 60 )

Updated solver that uses known COPV volume (config.press_tank.press_volume)
and initial ullage computed from initial propellant mass, prop tank volume, and density.

Provide either copv_volume_m3 OR copv_P0_Pa (exactly one). With copv_volume_m3, also giving
copv_m0_kg (the charge actually loaded) CHECKS that charge -- its P0 at T0_K, its pressure
trace and its margin -- instead of sizing the P0 that just meets the requirement.

Definition at line 38 of file copv_solve_both.py.

References load_Z_lookup_table(), max, ok, and Z_lookup().

Z_lookup()

copv.copv_solve_both.Z_lookup	(		T_K,
			P_Pa,
			interp,
			default_Z = 1.0 )

Definition at line 19 of file copv_solve_both.py.

Referenced by size_or_check_copv_for_polytropic_N2().