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Re: Images for FluxBB: extendedMerlin at 4 seconds
Posted: Fri Nov 07, 2025 5:32 pm
by tahanson43206
These are results of the extendedMerlin run through 4 seconds.
Plot of thrust
- thrust_over_time.png (35.78 KiB) Viewed 62 times
Engine pressure
- 20251106EngineAt4-Pressure.png (26.47 KiB) Viewed 62 times
Engine Temperature
- 20251106EngineAt4-Temperature.png (56.11 KiB) Viewed 62 times
Engine Velocity
- 20251106EngineAt4-Velocity.png (98.3 KiB) Viewed 62 times
Intake pressure
- 20251106IntakeAt4SecondsPressure.png (11.18 KiB) Viewed 61 times
Intake Temperature
- 20251106IntakeAt4SecondsTemperature.png (10.2 KiB) Viewed 61 times
Intake Velocity
- 20251106IntakeAt4SecondsVelocity.png (11.86 KiB) Viewed 61 times
Re: Images for FluxBB: Status at 3.75 seconds
Posted: Thu Nov 06, 2025 5:22 pm
by tahanson43206
Re: Images for FluxBB: Full thrust series
Posted: Thu Nov 06, 2025 4:24 pm
by tahanson43206
This image shows thrust over the entire run from .64 through 3.75 seconds.
The plot seems to show gas escaping from the system due to heating at start up.
We are still waiting to see where the thrust will level off as new hydrogen arrives.
- thrust_over_time.png (35.38 KiB) Viewed 55 times
Re: Images for FluxBB: Plot thrust 3-25 to 3-50 Seconds
Posted: Wed Nov 05, 2025 3:39 pm
by tahanson43206
Plot of thrust from 3.25 seconds to 3.5 seconds...
Looking for leveling off but it is not yet
- thrust_over_time.png (33.06 KiB) Viewed 54 times
Re: Images for FluxBB: GW Johnson Landing Moon etc
Posted: Wed Nov 05, 2025 12:32 am
by tahanson43206
These images were prepared by GW Johnson:
- rough field starship.png (93.13 KiB) Viewed 52 times
Rough Field Starship
- roads to hold loads.png (32.86 KiB) Viewed 52 times
Roads to hold loads
- blue ghost lander.jpg (117.65 KiB) Viewed 52 times
Blue Ghost Lander
Re: Images for FluxBB: Trendline for thrust extendedMerlin
Posted: Tue Nov 04, 2025 4:56 pm
by tahanson43206
This plot shows thrust from the extendedMerlin model over 3.25 seconds of simulated run time:
- thrust_over_time.png (44.51 KiB) Viewed 52 times
Re: Images for FluxBB: Output of 3 second extendedMerlin
Posted: Mon Nov 03, 2025 4:27 pm
by tahanson43206
The six images at the links below show the status of the engine and the intake after 3 seconds of operation.
The model is extendedMerlin (using SpaceX original Merlin engine as the design anchor).
Flow rate is 2 kg/s after 2 seconds
Gas is hydrogen at 300 Kelvin
Power input is 40 MW but heat transfer is poor
Heat is on at the beginning of the run.
Intake showing pressure:
- 20251026IntakePressureAt3Seconds.png (10.93 KiB) Viewed 54 times
Intake showing Temperature:
- 20251026IntakeTemperatureAt3Seconds.png (10.63 KiB) Viewed 54 times
Intake showing Velocity:
- 20251026IntakeVelocityAt3Seconds.png (11.93 KiB) Viewed 54 times
Engine showing pressure:
- 20251026EnginePressureAt3seconds.png (20.69 KiB) Viewed 54 times
Engine showing Temperature:
- 20251026EngineTemperatureAt3Seconds.png (45.31 KiB) Viewed 54 times
Engine showing Velocity:
- 20251026EngineVelocityAt3Seconds.png (71.16 KiB) Viewed 54 times
(th)
Re: Images for FluxBB
Posted: Mon Oct 27, 2025 12:25 am
by kbd512
Test
- LC-Lot-9827-1.jpg (230.44 KiB) Viewed 185 times
Re: Images for FluxBB: Output of Run 1 to 1.25 seconds
Posted: Tue Oct 21, 2025 2:49 pm
by tahanson43206
These images show the status of the extendedModel after a short run of 9 hours from 1 second to 1.25 seconds
Engine Pressure
- 20251020EnginePressure.png (16.99 KiB) Viewed 2198 times
Engine Temperature
- 20251020EngineTemperature.png (40.35 KiB) Viewed 2198 times
Engine Velocity
- 20251020EnginePressure.png (16.99 KiB) Viewed 2198 times
Intake Pressure
- 20251020EnginePressure.png (16.99 KiB) Viewed 2198 times
Intake Temperture:
- 20251020EngineTemperature.png (40.35 KiB) Viewed 2198 times
Intake Velocity
- 20251020EngineVelocity.png (47.7 KiB) Viewed 2198 times
Re: Images for FluxBB: Equations Image
Posted: Sat Oct 18, 2025 4:39 pm
by tahanson43206
This image was contributed by GW Johnson
- equations.jpg (88.03 KiB) Viewed 2317 times