explain the reason of large sound at the instance of factor of the specimence
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Fluid dynamics is the study of the flow of liquids and gases, usually in and around solid surfaces. For example, fluid dynamics can be used to analyze the flow of air over an airplane wing or over the surface of an automobile. It also can be used in the design of ships to increase the speed with which they travel through water.
Scientists use both experiments and mathematical models and calculations to understand fluid dynamics. A wind tunnel is an enclosed space in which air can be made to flow over a surface, such as the model of an airplane. Smoke is added to the air stream so that the flow of air can be observed and photographed.
The data collected from wind tunnel studies and other experiments are often very complex. Scientists today use models of fluid behavior and powerful computers to analyze and interpret those data.
The field of fluid dynamics is often subdivided into aerodynamics and hydrodynamics. Aerodynamics is the study of the way air flows around airplanes and automobiles with the aim of increasing the efficiency of motion. Hydrodynamics deals with the flow of water in various situations such as in pipes, around ships, and underground. Apart from the more familiar cases, the principles of fluid dynamics can be used to understand an almost unimaginable variety of phenomena such as the flow of blood in blood vessels, the flight of geese in V-formation, and the behavior of underwater plants and animals.
Factors that influence flow
Flow patterns in a fluid (gas or liquid) depend on three factors: the characteristics of the fluid, the speed of flow, and the shape of the solid surface. Three characteristics of the fluid are of special importance: viscosity, density, and compressibility. Viscosity is the amount of internal friction or resistance to flow. Water, for instance, is less viscous than honey, which explains why water flows more easily than does honey.
All gases are compressible, whereas liquids are practically incompressible; that is, they cannot be squeezed into smaller volumes. Flow patterns in compressible fluids are more complicated and difficult to study than those in incompressible ones. Fortunately for automobile designers, at speeds less than about 220 miles (350 kilometers) per hour, air can be treated as incompressible for all practical purposes. Also, for incompressible fluids, the effects of temperature changes can be neglected.
Scientists use both experiments and mathematical models and calculations to understand fluid dynamics. A wind tunnel is an enclosed space in which air can be made to flow over a surface, such as the model of an airplane. Smoke is added to the air stream so that the flow of air can be observed and photographed.
The data collected from wind tunnel studies and other experiments are often very complex. Scientists today use models of fluid behavior and powerful computers to analyze and interpret those data.
The field of fluid dynamics is often subdivided into aerodynamics and hydrodynamics. Aerodynamics is the study of the way air flows around airplanes and automobiles with the aim of increasing the efficiency of motion. Hydrodynamics deals with the flow of water in various situations such as in pipes, around ships, and underground. Apart from the more familiar cases, the principles of fluid dynamics can be used to understand an almost unimaginable variety of phenomena such as the flow of blood in blood vessels, the flight of geese in V-formation, and the behavior of underwater plants and animals.
Factors that influence flow
Flow patterns in a fluid (gas or liquid) depend on three factors: the characteristics of the fluid, the speed of flow, and the shape of the solid surface. Three characteristics of the fluid are of special importance: viscosity, density, and compressibility. Viscosity is the amount of internal friction or resistance to flow. Water, for instance, is less viscous than honey, which explains why water flows more easily than does honey.
All gases are compressible, whereas liquids are practically incompressible; that is, they cannot be squeezed into smaller volumes. Flow patterns in compressible fluids are more complicated and difficult to study than those in incompressible ones. Fortunately for automobile designers, at speeds less than about 220 miles (350 kilometers) per hour, air can be treated as incompressible for all practical purposes. Also, for incompressible fluids, the effects of temperature changes can be neglected.
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