https://github.com/felipebogaertsm/machwave

Python package that helps engineers design rockets and rocket engines precisely and efficiently
https://github.com/felipebogaertsm/machwave

internal-ballistics nozzle simulation

Last synced: 2 months ago
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Python package that helps engineers design rockets and rocket engines precisely and efficiently

• Host: GitHub
• URL: https://github.com/felipebogaertsm/machwave
• Owner: felipebogaertsm
• License: gpl-3.0
• Created: 2020-09-17T17:49:53.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2024-10-02T17:03:53.000Z (4 months ago)
• Last Synced: 2024-12-02T11:53:17.910Z (2 months ago)
• Topics: internal-ballistics, nozzle, simulation
• Language: Python
• Homepage:
• Size: 36.8 MB
• Stars: 11
• Watchers: 1
• Forks: 1
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: license.txt

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README

        
# Machwave

## Written by: Felipe Bogaerts de Mattos

## Created on August, 2020

Machwave is a Python package that helps engineers design rockets, rocket motors and rocket engines with efficiency and precision.

# Models and simulations

The following assertions were taken into consideration:

- Propellant consisting of 2D BATES grain segments

- Cylindrical combustion chamber

- Thrust chamber composed of a simple flat end cap, conical nozzle and tubular casing

- Isentropic flow through nozzle

- Non-submerged nozzle

- Structure with screws as fasteners of both end cap and nozzle

Correction factors applied:

- Divergent CD nozzle angle

- Two phase flow

- Kinetic losses

- Boundary layer losses

## Propellants

Propellant data was obtained from ProPEP3. This software has been used in several applications/projects and it is capable of delivering reliable information on the chemical characteristics of a specific propellant composition. Burn rate data is obtained from experiments conducted by Richard Nakka and Magnus Gudnason.

### Supported propellants

- KNDX (Nakka burn rate data)

- KNSB-NAKKA (Nakka burn rate data) and KNSB (Magnus Gudnason burn rate data)

- KNSU (Nakka burn rate data)

- KNER (Magnus Gudnason burn rate data)

# References

## a015140

Correction factors.

## Hans Seidel's Chamber Pressure article

Chamber Pressure equation.