Physical Model
Physical Model: A scaled-down (or sometimes scaled-up or of the same size as the original system) physical representation made according to the theory of similarity, such as airplane models in wind tunnel tests, hydraulic system test models, architectural models, ship models, etc.
② Analog Model: In various fields of physics (mechanical, electrical, ...)ThermodynamicsVariables in systems such as thermodynamics and fluid mechanics sometimes follow the same laws. Based on this common law, models with completely different physical meanings can be created by analogy and analogy. For example, under certain conditions, the pressure response of an aerodynamic system composed of a throttle valve and a gas capacitor exhibits similar regularities to the output voltage characteristics of a circuit composed of resistors and capacitors. Therefore, the circuit, which is easier to experiment with, can be used to simulate the aerodynamic system.
