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Cal STAR — firmware, DAQ server, and engine design
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test_convection Namespace Reference

Functions

None test_matches_a_hand_calculation_through_ht ()
None test_lands_in_the_band_the_old_default_stood_in ()
None test_denser_gas_convects_harder ()
None test_helium_and_nitrogen_differ ()
None test_refuses_nonsense ()

Variables

float PSI = 6894.757293168361

Detailed Description

The still-gas film, checked against the correlation it adapts.

Function Documentation

◆ test_denser_gas_convects_harder()

None test_convection.test_denser_gas_convects_harder ( )
Grashof goes as density squared, so the same tank at a higher pressure
has a stiffer film. Which is the point of deriving it from the gas.

Definition at line 45 of file test_convection.py.

◆ test_helium_and_nitrogen_differ()

None test_convection.test_helium_and_nitrogen_differ ( )
Same tank, same pressure, different gas: the number is the gas's.

Definition at line 54 of file test_convection.py.

◆ test_lands_in_the_band_the_old_default_stood_in()

None test_convection.test_lands_in_the_band_the_old_default_stood_in ( )
The shipped default for a 17.5 L tank was 12 W/K, scaled as V^(2/3).
A nitrogen ullage at 500 psi against a wall of that size should come out
the same order -- not a tenth, not ten times.

Definition at line 36 of file test_convection.py.

◆ test_matches_a_hand_calculation_through_ht()

None test_convection.test_matches_a_hand_calculation_through_ht ( )
The function is the correlation applied to CoolProp's numbers and the
vessel's area, nothing more. Redo it by hand.

Definition at line 16 of file test_convection.py.

◆ test_refuses_nonsense()

None test_convection.test_refuses_nonsense ( )

Definition at line 61 of file test_convection.py.

Variable Documentation

◆ PSI

float test_convection.PSI = 6894.757293168361

Definition at line 13 of file test_convection.py.