(1) Simulation of ventilation in road tunnels through internet (2) Complete consulting about road tunnels such as planning, investigations, constructions, testing etc. (3) Sales and leasing of software package about ventilation (4) Simulation of ventilation for everywhere other than road tunnels (5) Other research regarding fluid dynamics (6) Development, design, manufacturing and sale of any apparatus regarding fluid mechanics. Why is it so expensive to have simulations done by experts? When asked to do a simulation of any tunnel, experts have to start developing the simulation system for it and also to make various adjustments taking conditions of the tunnel into account, by themselves. That is why the ventilation simulation costs you a lot. I have been wondering if the results of simulations have reliability and stability to rely on. Simulations to this day are mainly based on theories. They are rarely proven by actual practices. Moreover, due to limited developing period for the simulation system adaptable to the specified tunnel, their stability has not been verified sufficiently. I have been wondering if simulation systems themselves have low adaptability. Simulations to this day need adjustments by programming depending on the shape of tunnels and their ways of ventilation. Sometimes, programming becomes hard to complete when it is adapted to complicated tunnels since the treatment procedures are too complicating. It is too hard for us to handle the simulation systems. Simulations to this day rarely have sufficient human interface because of short period in developing and frequent changes in their software structure. That is why only experts can handle them efficiently. * Inexpensive simulations where people can make use of them commonly We have simulation systems you can use through the internet. You only need your computer, not the simulation systems of your own. * Simulations with high reliability and stability based on research for long Simulation systems with incredible reliability and stability are ready for you since they are fruit of the long research by Prof. Mizuno. * Simulations with wide adaptability for various shapes and ventilation systems of tunnels We can handle not only various ventilation system like longitudinal, transversal and their combined but also complicating tunnels with branches and junctions. We cover both ordinary state and emergency state. * Excellent human interface for you to handle our simulations Very friendly human interface is ready for you to do the simulations, thanks to the browsers of the internet. * Consulting If you want, you can consult with Prof. Mizuno to make more use of results from your simulation. *Ventilation simulation services for road tunnels *Consulting results of the simulation Planning Investigations, scheduling Estimating Reporting *Sale of software packages of simulation for road tunnels *Simulation & consulting for other types of tunnel *Various researches such as numerical analysis of fluidics