The Open Source CFD Toolbox
Queueing Theory Algorithms
Optimer: a SPICE base electrical/ electronic circuit optimization tool
BlueSky Open Air Traffic sim, (Windows/Linux/Mac, Python 2.x based)
Distributed Computing with JavaScript
Eclipse plugin for Stochastic Pi Machine
Zwicker's Loudness Calculation (ISO532B) Tools
VMLAB User Components for AVR peripherals and external components
A cycle-accurate interconnection network simulator.