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STAR
Cal STAR — firmware, DAQ server, and engine design
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Variables | |
| REPO = Path(__file__).resolve().parents[1] | |
| dict | STALE_LOX = {"specific_heat": 2300.0, "bulk_modulus_pa": 1.5e9, "viscosity": 1.8e-4} |
A design whose fluid block disagrees with its propellant preset says so. An explicit ``fluids`` block wins over the preset on load, so a design saved before the ethalox preset was corrected against CoolProp keeps LOX cp 2300 (CoolProp Oxygen 90 K: 1699 J/(kg K)), bulk modulus 1.5e9 (rho a^2: 0.94e9 Pa) and viscosity 1.8e-4 (1.96e-4 Pa s) with no word. The LE4 (3) stand's engine carries that block: forward thrust barely moves, but its chug gate goes 1.445 -> 1.420, the LOX water hammer 3182 -> 2561 psi and the line quarter-wave 2697 -> 2170 Hz.
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protected |
Definition at line 20 of file test_preset_fluid_drift.py.
Referenced by test_a_config_without_a_preset_is_not_compared(), test_a_design_on_the_presets_fluids_is_quiet(), test_a_rounding_is_not_drift(), test_the_shipped_ethalox_designs_carry_the_corrected_lox(), and test_the_stale_lox_block_is_named_with_the_presets_values().
| test_preset_fluid_drift.test_a_config_without_a_preset_is_not_compared | ( | ) |
Definition at line 54 of file test_preset_fluid_drift.py.
References _cfg().
| test_preset_fluid_drift.test_a_design_on_the_presets_fluids_is_quiet | ( | ) |
Definition at line 39 of file test_preset_fluid_drift.py.
References _cfg().
| test_preset_fluid_drift.test_a_rounding_is_not_drift | ( | ) |
default.yaml's LOX boiling point is 90.19 against the methalox preset's 90.2.
Definition at line 45 of file test_preset_fluid_drift.py.
References _cfg().
| test_preset_fluid_drift.test_the_shipped_ethalox_designs_carry_the_corrected_lox | ( | name | ) |
Definition at line 64 of file test_preset_fluid_drift.py.
References _cfg().
| test_preset_fluid_drift.test_the_stale_lox_block_is_named_with_the_presets_values | ( | ) |
Definition at line 26 of file test_preset_fluid_drift.py.
References _cfg().
| test_preset_fluid_drift.REPO = Path(__file__).resolve().parents[1] |
Definition at line 16 of file test_preset_fluid_drift.py.
| dict test_preset_fluid_drift.STALE_LOX = {"specific_heat": 2300.0, "bulk_modulus_pa": 1.5e9, "viscosity": 1.8e-4} |
Definition at line 17 of file test_preset_fluid_drift.py.