Software

BurnSim is a solid rocket steady-state ballistic simulation software for the Windows platform. In a nutshell, input your motor, nozzle and propellant characteristics and BurnSim calculates the Kn through the burn and predicts estimated chamber pressure and motor performance. Once your motor design is in BurnSim, you can tweak the parameters such as nozzle diameter or grain core diameter and instantly see how the Kn, chamber pressure, and motor thrust is effected. BurnSim will also optimize your nozzle design.

Once you're happy with the your motor design, BurnSim can then export a .ENG file for use in RockSim, wRasp or other rocket flight simulators. You may also export the data to a text file (comma delimited) for use in virtually any system as well as print the simulation graph and data. You can estimate your motor's performance and rocket's flight before you even cast a grain!

Features

Supports the following grain configurations in any number and combination:

BATES grains with 0-2 restricted ends
End burning grains (defined as BATES grain with zero diameter core)
Moon or Offset Core
D Grains
C-Slot
Finocyl
Star
X-Core

Different propellant types can be specified for each grain

Instantly see a graph of Kn, chamber pressure, thrust, and see how it changes when you change motor attributes.

Graph Mass Flux over the burn, a value that can be used to monitor erosive burning

Import test data and graph it along side simulations

Save your motor designs and propellant characteristics, as well as notes and imported test data

Export predicted motor performance into .eng files for use in Rocksim or wRasp

Export predicted motor performance into .csv files (comma delimited text files) for use Excel or any other program.

Thrust estimations based on nozzle geometry

Optimize your nozzle design for maximum performance.

Propellants can be defined with characterization data that changes over varied pressure ranges

Supported Platforms

BurnSim runs on Windows XP or later.

BurnSim can be downloaded and installed right away. You can opt to receive a CD as well.

Click here to download BurnSim

Burnsim 3.0 License for Downloaded version $39.00

Burnsim 3.0 CD (includes download license) $54.00