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Simulation of flight performance of N-1 rocket motor propellant #35

Closed shohei closed 3 years ago

shohei commented 3 years ago

Ref: https://github.com/nakujaproject/intern/blob/main/felix/Nakuja%20internship%20Progress%20report%20format.pdf

felixgateru commented 3 years ago

@0x6f736f646f Please find attached a link to a motor .eng file please add it to open Rocket and present simulation data. https://github.com/nakujaproject/felixResearch/blob/main/Motor%20data/Motor150321-01/motor-36mm.eng

shohei commented 3 years ago

@1998-felix I have a question. How did you calculate the .eng data?

felixgateru commented 3 years ago

@shohei I used openMotor to generate the thrust curves as well as the mass of propellant. I then calculated the mass of PPR pipe of length 90 mm as well as the weight of the nozzle. By inputting these parameters into openMotor I was able o generate a .eng file

shohei commented 3 years ago

@1998-felix Thank you for the clarification!

SammyOina commented 3 years ago

Updated proposed N1-Motor

Grain diameter 40mm performance KNDX KNSU
Designation G47 F46
Impulse 85.83 70.26
Propellant mass (Kg) 0.18 0.14
Average Pressure (MPa) 1.38 1.36
Peak Pressure (MPa) 1.52 1.49
Grain Length (mm) 90 70
Core (mm) 13 13
Nozzle (mm) 9 9
Burn Time (s) 1.77 1.47
Rasp File Eng File Eng File
Thrust Curve
SammyOina commented 3 years ago

Updated proposed N1-Motor

Grain diameter 40mm

performance KNDX KNSU Designation G47 F46 Impulse 85.83 70.26 Propellant mass (Kg) 0.18 0.14 Average Pressure (MPa) 1.38 1.36 Peak Pressure (MPa) 1.52 1.49 Grain Length (mm) 90 70 Core (mm) 13 13 Nozzle (mm) 9 9 Burn Time (s) 1.77 1.47 Rasp File Eng File Eng File Thrust Curve

@0x6f736f646f Please find the Rasp file and simulate on openrocket for apogee simulation

rodneyosodo commented 3 years ago

@0x6f736f646f Please find attached a link to a motor .eng file please add it to open Rocket and present simulation data. https://github.com/nakujaproject/felixResearch/blob/main/Motor%20data/Motor150321-01/motor-36mm.eng

Already tested it in openRocket.

rodneyosodo commented 3 years ago

Updated proposed N1-Motor

Grain diameter 40mm performance KNDX KNSU Designation G47 F46 Impulse 85.83 70.26 Propellant mass (Kg) 0.18 0.14 Average Pressure (MPa) 1.38 1.36 Peak Pressure (MPa) 1.52 1.49 Grain Length (mm) 90 70 Core (mm) 13 13 Nozzle (mm) 9 9 Burn Time (s) 1.77 1.47 Rasp File Eng File Eng File Thrust Curve

@0x6f736f646f Please find the Rasp file and simulate on openrocket for apogee simulation

It has refused. Please use the format in the test folder. .eng should give the specs then .csv to give the thrust curve