Steady-state simulation vs. dynamic simulation: what is the difference between simulation and emulation?
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I think dynamic simulation has an additional time axis compared to steady-state simulation, but once it operates stably, it returns to a steady-state condition. Compared to steady-state models, dynamic models require the input of parameters for all devices. Simulation and emulation: Simulation is often used in stages such as design, when the actual model does not yet exist ； Simulation involves creating models of existing entities such as factories, using computer simulations.
Basically, it agrees with the original poster’s view, but regarding the fact that “dynamic models require the input of parameters for all devices compared to steady-state models.” “I don’t quite agree; all device parameters are necessary:lol
The units described by the steady-state model are independent of time, and they address only mass balance, energy balance, and phase balance. The amount of material entering and leaving the unit must be equal. Dynamic simulation introduces a time variable; in addition to addressing the three types of equilibrium issues that steady-state models have to deal with, it also takes into account the changes over time in pressure, temperature, liquid level, and the concentration of various phases. Therefore, steady-state simulation is described by algebraic equations of the three equilibria. Dynamic simulation is described by differential equations of the changes over time in system pressure, temperature, liquid level, and concentration of each phase.