test_graphite_properties Namespace Reference

Functions
	_python_physics (monkeypatch)
	test_specific_heat_matches_janaf (T, cp_janaf)
	_slab (cp_of=None)
	test_a_heated_slab_stores_the_heat_it_was_given ()
	test_a_constant_cp_function_is_the_constant_model ()
	_burn (mutate)
	test_the_insert_heats_slower_with_its_real_specific_heat ()
	test_the_model_changes_nothing_without_an_insert ()

Variables
	ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
	CFG = os.path.join(ROOT, "configs", "ethalox_6500N.yaml")
float	PSI = 6894.757293168361
float	MW_C = 12.0107e-3
	RHO
	K

Detailed Description

The graphite insert's specific heat follows temperature (graphite_insert.specific_heat_model).

The configs carried graphite's room-temperature specific heat, 710 J/(kg K), at every temperature;
it is ~2000 J/(kg K) at the throat's running temperature, so the surface heated ~2.5x too fast and
the surface chemistry ran early. Expected values here are independent of the code:
  * NIST-JANAF graphite Cp: 8.517 J/(mol K) at 298.15 K, 21.610 J/(mol K) at 1000 K;
  * a slab with an adiabatic back stores exactly the heat put into its face, int rho H(T) dy = q t.

Function Documentation

_burn()

test_graphite_properties._burn ( mutate )

protected

Definition at line 71 of file test_graphite_properties.py.

Referenced by test_the_insert_heats_slower_with_its_real_specific_heat(), and test_the_model_changes_nothing_without_an_insert().

_python_physics()

test_graphite_properties._python_physics ( monkeypatch )

protected

Definition at line 32 of file test_graphite_properties.py.

_slab()

test_graphite_properties._slab ( cp_of = None )

protected

Definition at line 41 of file test_graphite_properties.py.

Referenced by test_a_constant_cp_function_is_the_constant_model(), and test_a_heated_slab_stores_the_heat_it_was_given().

test_a_constant_cp_function_is_the_constant_model()

test_graphite_properties.test_a_constant_cp_function_is_the_constant_model

(

)

Definition at line 63 of file test_graphite_properties.py.

References _slab().

test_a_heated_slab_stores_the_heat_it_was_given()

test_graphite_properties.test_a_heated_slab_stores_the_heat_it_was_given

(

)

Definition at line 45 of file test_graphite_properties.py.

References _slab().

test_specific_heat_matches_janaf()

test_graphite_properties.test_specific_heat_matches_janaf	(		T,
			cp_janaf )

Definition at line 37 of file test_graphite_properties.py.

test_the_insert_heats_slower_with_its_real_specific_heat()

test_graphite_properties.test_the_insert_heats_slower_with_its_real_specific_heat

(

)

Definition at line 79 of file test_graphite_properties.py.

References _burn().

test_the_model_changes_nothing_without_an_insert()

test_graphite_properties.test_the_model_changes_nothing_without_an_insert

(

)

Definition at line 91 of file test_graphite_properties.py.

References _burn().

Variable Documentation

CFG

test_graphite_properties.CFG = os.path.join(ROOT, "configs", "ethalox_6500N.yaml")

Definition at line 25 of file test_graphite_properties.py.

K

test_graphite_properties.K

Definition at line 28 of file test_graphite_properties.py.

MW_C

float test_graphite_properties.MW_C = 12.0107e-3

Definition at line 27 of file test_graphite_properties.py.

PSI

float test_graphite_properties.PSI = 6894.757293168361

Definition at line 26 of file test_graphite_properties.py.

RHO

test_graphite_properties.RHO

Definition at line 28 of file test_graphite_properties.py.

ROOT

test_graphite_properties.ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

Definition at line 24 of file test_graphite_properties.py.