SimFlow - SimFlow is a powerful CFD software, focused on engineering and science.
LTspice - LTspice® is a high performance SPICE simulation software, schematic capture and waveform viewer with enhancements and models for easing the simulation of analog circuits.
COMSOL Multiphysics - COMSOL is the developer of COMSOL Multiphysics software, an interactive environment for modeling and simulating scientific and engineering problems.
Circuit Simulator - Animated electronic circuit simulator using ideal components to visualize voltage and current.
ANSYS Fluent - ANSYS engineering simulation and 3D design software delivers product modeling solutions with unmatched scalability and a comprehensive multiphysics foundation.
Solve Elec - Solve Elec is a free educational program to draw and analyze electrical circuits.