test_cold_gas_thruster.TestColdGasThrusterPhysics Class Reference

Public Member Functions
	test_thrust_positive (self)
	test_mass_flow_positive (self)
	test_exit_mach_supersonic (self)
	test_exit_temperature_below_inlet (self)
	test_isp_in_expected_range (self)
	test_thrust_identity (self)
	test_mass_flow_isp_thrust_identity (self)

Detailed Description

Verify the isentropic analysis gives physically reasonable results.

Definition at line 29 of file test_cold_gas_thruster.py.

Member Function Documentation

test_exit_mach_supersonic()

test_cold_gas_thruster.TestColdGasThrusterPhysics.test_exit_mach_supersonic

(

self

)

Expansion ratio > 1 should give M > 1.

Definition at line 40 of file test_cold_gas_thruster.py.

References test_cold_gas_thruster._make_config().

test_exit_temperature_below_inlet()

test_cold_gas_thruster.TestColdGasThrusterPhysics.test_exit_temperature_below_inlet

(

self

)

Isentropic expansion must cool the gas.

Definition at line 45 of file test_cold_gas_thruster.py.

References test_cold_gas_thruster._make_config().

test_isp_in_expected_range()

test_cold_gas_thruster.TestColdGasThrusterPhysics.test_isp_in_expected_range

(

self

)

CO₂ cold gas Isp should be roughly 40–80 s.

Definition at line 51 of file test_cold_gas_thruster.py.

References test_cold_gas_thruster._make_config().

test_mass_flow_isp_thrust_identity()

test_cold_gas_thruster.TestColdGasThrusterPhysics.test_mass_flow_isp_thrust_identity

(

self

)

F should equal ṁ · Isp · g₀.

Definition at line 67 of file test_cold_gas_thruster.py.

References test_cold_gas_thruster._make_config().

test_mass_flow_positive()

test_cold_gas_thruster.TestColdGasThrusterPhysics.test_mass_flow_positive

(

self

)

Definition at line 36 of file test_cold_gas_thruster.py.

References test_cold_gas_thruster._make_config().

test_thrust_identity()

test_cold_gas_thruster.TestColdGasThrusterPhysics.test_thrust_identity

(

self

)

F should equal ṁ·v + (Pe-Pa)·Ae.

Definition at line 58 of file test_cold_gas_thruster.py.

References test_cold_gas_thruster._make_config().

test_thrust_positive()

test_cold_gas_thruster.TestColdGasThrusterPhysics.test_thrust_positive

(

self

)

Definition at line 32 of file test_cold_gas_thruster.py.

References test_cold_gas_thruster._make_config().

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The documentation for this class was generated from the following file:

• EngineDesign/tests/test_cold_gas_thruster.py