Solid Propellant Internal Ballistics Simulation
EX Rocket Motor design software
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2/2/11 - Run BurnSim on Linux under WINE!
1/30/11 - Version 3.1.8 released!
3/14/10 - Version 3.1.6 released!
What is BurnSim?
BurnSim is a solid rocket steady-state ballistic simulation software package 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 affected. BurnSim will also optimize your nozzle design.
Motor designs in BurnSim can be saved and recalled for later use. In addition, test data can be imported and graphed alongside simulation data to compare sims to results. BurnSim allows you to make notes about your propellants and motor designs, all saved in one convenient location.
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. You can estimate your motor's performance and rocket's flight before you even cast a grain!
Dont hesitate to contact me at BurnSim@blastzone.org with any bug reports, suggestions or anything at all.
BurnSim estimates chamber pressure and performance assuming steady state operation. BurnSim (currently) does NOT take into account erosive burning effects which can significantly raise chamber pressures in motors with high L/D ratios. Test all motors in a safe environment, and always assume the motor can fail. Be prepared.
What does it cost?
A Personal license for BurnSim is only $39. This is for the download, CD's are available for $15 additional. The Personal license entitles one person's use of BurnSim version 3.0, up to 5 installations / reinstalls. For multiple users, volume discounts are available. Please contact us for details.
Please download BurnSim and try it out. Thank you for your support, license fees cover the costs of continued development and improvements to BurnSim.
License fees may be purchased with via Paypal, or with a credit card, or check / money order. Please go to the Secure Payment Page to purchase your license.
Where can I download BurnSim?
The download page is here
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