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Re: Images for FluxBB: extendedMerlin Heat Test One

Posted: Sat Oct 18, 2025 1:21 am
by tahanson43206
These images are from ParaView rendering of the status of extendedMerlin OpenFOAM model at 0.1 seconds into the first run with heaters turned on.

the heaters are activated to deliver 40 MW over a distance of 240 meters.

The model is designed to feed hydrogen at 300 Kelvin at a rate of 2 kg/s. the rate of flow ramps up slowly
20251017HeatForDotOneNozzleU.png
20251017HeatForDotOneNozzleU.png (49.66 KiB) Viewed 2311 times
20251017HeatForDotOneNozzleT.png
20251017HeatForDotOneNozzleT.png (22.87 KiB) Viewed 2311 times
20251017HeatForDotOneNozzlep.png
20251017HeatForDotOneNozzlep.png (23.61 KiB) Viewed 2311 times
20251017HeatForDotOneIntakeU.png
20251017HeatForDotOneIntakeU.png (11.68 KiB) Viewed 2311 times
20251017HeatForDotOneIntakeT.png
20251017HeatForDotOneIntakeT.png (15.03 KiB) Viewed 2311 times
20251017HeatForDotOneIntakep.png
20251017HeatForDotOneIntakep.png (8.66 KiB) Viewed 2311 times

Re: Images for FluxBB: GW Johnson Orbit Change at Moon

Posted: Wed Oct 15, 2025 4:44 pm
by tahanson43206
This image by GW Johnson shows basics of orbit change at the Moon
orbit plane changes.png
orbit plane changes.png (86.91 KiB) Viewed 3092 times

Re: Images for FluxBB: Nine hour run snapshots

Posted: Mon Oct 13, 2025 1:57 am
by tahanson43206
This run featured:

1) hydrogen filled model at 1 bar and 300 Kelvin at start
2) hydrogen input via ram to 2 kg/s at 2 seconds and run time of 3 seconds
3) outlet fixed at 1 bar so hydrogen above 1 bar escaped by below swirled in the engine compartment

The images here are taken about half way through the run... hydrogen is flowing through the nozzle
20251012MidRunVelocityDisplay.png
20251012MidRunVelocityDisplay.png (105.16 KiB) Viewed 5354 times
20251012MidRunTemperatureDisplay.png
20251012MidRunTemperatureDisplay.png (81.43 KiB) Viewed 5354 times
20251012MidRunPressureDisplay.png
20251012MidRunPressureDisplay.png (42.63 KiB) Viewed 5354 times

Re: Images for FluxBB: Hydrogen at Nozzle

Posted: Sun Oct 12, 2025 1:37 am
by tahanson43206
Velocity display of hydrogen passing through nozzle from heat pipe.
20251010HydrogenPlumeExitNozzle.png
20251010HydrogenPlumeExitNozzle.png (23.5 KiB) Viewed 5811 times

: Re: Images for FluxBB: Velocity

Posted: Fri Oct 10, 2025 1:28 am
by tahanson43206
Velocity
20251009RunTo2secondsOKVelocity.png
20251009RunTo2secondsOKVelocity.png (77.52 KiB) Viewed 8859 times

Re: Images for FluxBB: Temperature

Posted: Fri Oct 10, 2025 1:27 am
by tahanson43206
Temperature:
20251009RunTo2secondsOKTemperature.png
20251009RunTo2secondsOKTemperature.png (62.25 KiB) Viewed 8858 times

Re: Images for FluxBB: Run to 2 secoonds Pressure

Posted: Fri Oct 10, 2025 1:27 am
by tahanson43206
This image shows the engine compartment at 2 seconds with hydrogen ramping to 2 kg/s at 300 K, and outlet opening to pressure above 1 bar
20251009RunTo2secondsOKPressure.png
20251009RunTo2secondsOKPressure.png (39.44 KiB) Viewed 8856 times

Re: Images for FluxBB: pressure

Posted: Thu Oct 09, 2025 7:09 pm
by tahanson43206
This view is of pressure readings in the engine compartment at .38 seconds
20251008LongRunPressureDisplay.png
20251008LongRunPressureDisplay.png (26.28 KiB) Viewed 8878 times

Re: Images for FluxBB: Temperature

Posted: Thu Oct 09, 2025 7:07 pm
by tahanson43206
Engine compartment at .38 seconds showing Temperature
20251008LongRunTemperatureDisplay.png
20251008LongRunTemperatureDisplay.png (67.28 KiB) Viewed 10285 times

Re: Images for FluxBB: Velocity Long Run

Posted: Thu Oct 09, 2025 7:04 pm
by tahanson43206
This image is for Velocity. The view is of the engine compartment, showing hydrogen flowing from the heat pipe through the nozzle to the outlet in lower right.
20251008LongRunVelocityDisplay.png
20251008LongRunVelocityDisplay.png (73.85 KiB) Viewed 11112 times