NewMars On phpBB3 • Images for FluxBB

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Re: Images for FluxBB: extendedMerlin 20251127

Posted: Fri Nov 28, 2025 3:16 am

by tahanson43206

This post contains a set of 7 images from a run of extendedMerlin to 7 seconds...

: Thrust Over Time; thrust_over_time.png (32.98 KiB) Viewed 58 times

: Engine Pressure; 20251127EnginePressureAt7seconds.png (31.08 KiB) Viewed 58 times

: Engine Temperature; 20251127EngineTemperatureAt7seconds.png (121.67 KiB) Viewed 58 times

: Engine Velocity; 20251127EngineVelocityAt7seconds.png (91.53 KiB) Viewed 58 times

: Intake Pressure; 20251127IntakePressureAt7seconds.png (11.3 KiB) Viewed 58 times

: Intake Temperature; 20251127IntakeTemperatureAt7seconds.png (11.01 KiB) Viewed 58 times

: Intake Velociity; 20251127IntakeVelocityAt7seconds.png (11.67 KiB) Viewed 58 times

Re: Images for FluxBB: Thrust at 6 seconds

Posted: Thu Nov 27, 2025 3:09 pm

by tahanson43206

This image shows a plot of thrust for the extendedMerlin model, from .6 (point 6) seconds through 6 seconds)

: Thrust from .6 seconds through 6 seconds; thrust_over_time.png (32.54 KiB) Viewed 61 times

Re: Images for FluxBB: Thermal Transfer Efficiency

Posted: Tue Nov 18, 2025 4:03 pm

by tahanson43206

These plots show properties of pipe as they related to the efficiency of thermal energy transfer via convection

: gnuplot showing 2 divided by radius; thermal_efficiency_plot.png (36.48 KiB) Viewed 68 times

: Calc plot showing 2 divided by radius; thermal_efficiency_calc_version.png (22.94 KiB) Viewed 68 times

: Calc plot showing radius, circumference, area; All_six_columns_Pipe_Properties.png (59.7 KiB) Viewed 68 times

: GW Johnson Version C to A ratio; C to A ratio.png (30.36 KiB) Viewed 66 times

: GW Johnson Version C to A ratio; C to A ratio.png (30.36 KiB) Viewed 66 times

Re: Images for FluxBB

Posted: Sat Nov 15, 2025 8:39 pm

by tahanson43206

This may be the last post for this topic. Microsoft may close the Virtual Machine where this forum is running.
(th)

Re: Images for FluxBB: 3.62 cm throat Nozzle design

Posted: Tue Nov 11, 2025 1:44 am

by tahanson43206

This image by GW Johnson shows details of a nozzle designed for use with hydrogen:

: 3 62 solar rocket nozzle.png (54.32 KiB) Viewed 76 times

Re: Images for FluxBB: Heat tube study

Posted: Mon Nov 10, 2025 9:38 pm

by tahanson43206

This image reflects GW Johnson study of heat tube physics:

20251110 heater tube redo.png

Re: Images for FluxBB: Heat tube study

Posted: Mon Nov 10, 2025 9:38 pm

by tahanson43206

This image reflects GW Johnson study of heat tube physics:

: 20251110 heater tube redo.png (36.16 KiB) Viewed 77 times

Re: Images for FluxBB: Rocket Nozzle GW Johnson

Posted: Sun Nov 09, 2025 11:43 pm

by tahanson43206

This image provides principles of Rocket design:

: simple nozzle design.png (30.18 KiB) Viewed 80 times

Re: Images for FluxBB: End on View of Possible Heater

Posted: Sun Nov 09, 2025 8:25 pm

by tahanson43206

This drawing shows a possible arrangement of heating tubes for the Optical Plane engine

: 20251109FlatIntakeModel.png (50.17 KiB) Viewed 83 times

Re: Images for FluxBB: extendedMerlin at 4.25

Posted: Sat Nov 08, 2025 4:51 pm

by tahanson43206

These images are output from a run of extendedMerlin to 4.25 seconds. We can see that thrust is steady at just over 1 ton-force

Plot:

: thrust_over_time.png (35.9 KiB) Viewed 84 times

Engine Pressure:

: 20251108EngineAt4.25Pressure.png (26.51 KiB) Viewed 84 times

Engine Temperature:

: 20251108EngineAt4.25Temperature.png (56.28 KiB) Viewed 84 times

Engine Velocity:

: 20251108EngineAt4.25Velocity.png (98.18 KiB) Viewed 84 times

Intake Pressure:

: 20251108IntakeAt4.25Pressure.png (11.14 KiB) Viewed 84 times

Intake Temperature;

: 20251108IntakeAt4.25Temperature.png (10.38 KiB) Viewed 84 times

Intake Velocity:

: 20251108IntakeAt4.25Velocity.png (12.01 KiB) Viewed 84 times