👉 A fluid, in the context of physics and engineering, is a substance that takes the shape of its container while maintaining a constant volume. Fluids can be either liquids or gases, and they exhibit unique properties such as viscosity (resistance to flow), surface tension (cohesion between fluid molecules at the surface), and compressibility (ability to change volume under pressure). These properties make fluids essential in various natural phenomena, industrial processes, and everyday applications, ranging from the flow of water in rivers to the movement of air in the atmosphere. Understanding fluid dynamics is crucial for fields like meteorology, oceanography, chemical engineering, and mechanical engineering.
