Features
The technique of trial on the physical model of the system. The physical model is established with a geometric similar or physical class, which can describe the internal characteristics of the system, or describe the environmental conditions necessary for the test. If the wind tunnel is tested, the aircraft model that reduces the proportion is hung in a wind tunnel having a submicron or supersonic airflow, and various pneumatic coefficients of the aircraft are measured. Aircraft models and wind holes are physical models. As another example, the terrain of the waters, the dam is reduced into a physical model, and the water flow test is performed; the gesture angle sensor (gyroscope) is installed in the pitch, magnificent, and yaw three corner movement. The experiment of the flight control system is performed on the freedom flight simulation turn station. The main difference between physical simulation and mathematical simulation (see simulation) is:
Compare difference
1 Physical simulation is to create a physical model Implemented. Physical simulation system is a geometric similarity or physical category of real systems. Geometric Similarity refers to a similar relationship between different sizes systems of a physical process such as mechanical motion or electricity or electricity. The physical class is to refer to two different physical processes (such as mechanical motion and dynamic processes, etc.) have the same mathematical description, which can be simulated experimental models. Mathematical simulation is to describe various physical processes by establishing a dynamic process of simulating a computer's circuit of the computer or digital computing process of digital computers. Therefore, the physical simulation system is dedicated; the mathematical simulation system (ie, the simulation computer) is common.
2 Physical simulation requirements real time simulation, and mathematical simulation can be real-time or non-real. (including super commutation and sub-real)