Methane Engine

Input Parameters
Parameter	Value
p_c	10000000
p_e	80000
MR	2.8
AR_c	2
F	100000
cea_fu	CH4 (100%)
cea_ox	O2 (100%)
coolprop_fu	methane (100%)
coolprop_ox	oxygen (100%)
T_gas_fu_in	300
T_gas_ox_in	300
p_tank_ox	500000
p_tank_fu	500000
theta_conv	35
R_1f	0.5
R_2f	1
R_3f	0.5
length_fraction	1
L_star	1.1
copper_roughness_height	3e-06
fuel_channel_count	140
nozzle_channel_count	120
channel_blockage_ratio	0.1
fuel_hot_gas_surface_area_multiplier	1
ox_outbound_hot_gas_surface_area_multiplier	1.2
ox_return_hot_gas_surface_area_multiplier	1.2
fuel_throat_channel_height	0.002
fuel_channel_height_slope	0.006
ox_channel_height	0.006
ox_single_pass_channel_height	0.0025
copper_thickness	0.0006
copper	GRCop-42
eta_pump_fu	0.72
n_fu	50000
eta_pump_ox_stage1	0.76
eta_pump_ox_stage2	0.72
n_ox	25000
eta_turbine_fu	0.75
eta_turbine_ox	0.72
eta_pump_regen_fu	0.95
eta_regen_turbine_fu	0.98
eta_turbine_injector_fu	0.94
eta_fu_injector	0.88
eta_pump_regen_ox	0.98
eta_regen_turbine_ox	0.98
eta_turbine_injector_ox	0.88
eta_ox_injector	0.88
zeta_fu_recirc	0.005
zeta_ox_recirc	0.005
ox_regen_flow_fraction	0.4
zeta_fu_turbine_bypass	0.005
zeta_ox_turbine_bypass	0.005
T_regen_fu_in	111
p_regen_fu_in	15000000
T_regen_ox_in	93
p_regen_ox_in	15000000
T_tank_ox	109
T_tank_fu	135

Engine 3D

Fuel coolant pressure.

Oxidizer coolant pressure.

Radius-of-curvature computation is still experimental.

Maximum relative residual per fixed-point iteration.

Fuel-side pressure

Fuel-side temperature

Oxidizer-side pressure

Oxidizer-side temperature

Editable engine-cycle schematic