Which Matlab tools suit for substance manipulation and energy flow simulation?

Hello, I'm working on a new concept of environment. I'm dealing with energy flows which manipulating substance. What tools of simulation do i need to simulate substances and the energy flows that "act inside" them?

Thanks

[Jon]

Your description of your application is so general and high level that it is hard to give any suggestions. Please be more specific.

[Duc Hoang]

For example, i want to simulate the growth/ death of a tree or an animal. I want to know how the energy flows transform from chemical energy in their "diet" into biomass, kinetic energy (animal) and thermal energy which their "bodies" emit to environment; The transformation and combination of pure substances ( atoms/ moleculars) to make up their lives.

And other such things like this progress.

Sorry for the high level description, English is not my native language, and I'm an Electrical engineer. I don't have basic knowledges of energetics and advance knowledges of physics.

Thanks for your time.

Answer 1

[Jon]

The Mathworks Simulink program, is a very flexible, and powerful, block diagram oriented tool for simulating systems that can be modeled using ODE's (ordinary differential equations) also known as lumped element models. It can handle linear and non-linear systems of equations. From your brief description it sound like your systems may be ammenable to modeling using ODE's so I would recommend looking into that.

For systems that need to be modeled with partial differential equations, there is a MATLAB Partial Differential Equation Toolbox, but I do not have any experience using that. There are also many other commercial packages, COMSOL is widely advertised for doing Multiphyics (mixed domains, fluid, solid, electrical etc all combined into one system). There are also other specialty packages like ANSYS Fluent for doing computational fluid dynamics.