Fluid simulation is a computational fluid dynamics (CFD) method, which is used to predict fluid flow and corresponding physical phenomena, such as flow, pressure, velocity and temperature. Based on computer model and mathematical model, it simulates the movement and behavior of fluid by analyzing the relationship between physical quantities and time and space. Through fluid simulation, we can better understand and predict the behavior of fluid, thus providing decision support for industrial design, engineering and scientific research.

Fluid simulation has been widely used in many fields, including automobile industry, aerospace, construction engineering, military defense, medical care and environmental protection. For example, automobile manufacturers can use fluid simulation technology to study the aerodynamic performance of automobiles, reduce fuel consumption, reduce noise and improve driving experience. In addition, fluid simulation can also be used to design ventilation, air conditioning and thermal systems in buildings, which is helpful to prevent pollution and support the research and development of new energy sources.

Fluid simulation technology has many advantages, which improves the complexity, cost and efficiency of code development and operation. Fluid simulation technology can speed up the design cycle, reduce the cost and use of resources, and can be tested outside the laboratory or manufacturing plant. In addition, the limitations of physical testing, such as high temperature, high pressure and dangerous environment, can be overcome through simulation testing. To sum up, fluid simulation technology provides an effective tool for us to better understand complex fluid behavior and flow phenomena, and is an indispensable part of industrial design and scientific research.