ACS is a general purpose circuit simulator.
http://www.geda.seul.org/tools/acs/
An example of simulation of a flexible assembly operations using the PASION simulation system. Links to other manufacturing and queuing model examples.
http://www.raczynski.com/pn/manuf.htm
Pipe flow analysis, incompressible, nonlinear analysis, piping and pump design, computer assisted engineering, simulation software.
http://www.dwtechnology.com/about_vpn.asp
Discrete event simulation engine that runs over a standard Java virtual machine.
http://www.cs.cornell.edu/barr/repository/jist/
Simulation and production managerment software for the oil and gas industry. Multiphase flow, optimization, gas lift design, process, steady state.
http://www.BakerJardine.com
simulation software
http://www.bausch-gall.de/
BTS customises business simulations to improve business acumen among managers.
http://www.bts.com
Automatic modeling software for design of Mechatronics and Dynamic Systems. Mechanical, Electrical, Hydraulic, Thermal and Control Systems can be modeled together. Model generating tool that interfaces with MATLAB / SIMULINK, ACSL and others to perform computer simulations.
http://www.bondgraph.com