Converging section of a Venturi nozzle that accelerates fluid flow by reducing cross-sectional area
The converging section is the upstream component of a Venturi nozzle where the cross-sectional area gradually decreases along the flow direction. This geometric configuration converts fluid pressure into kinetic energy according to Bernoulli's principle, creating accelerated flow with reduced static pressure. In industrial applications, it serves as the primary flow acceleration stage before the throat section, enabling precise flow measurement, mixing, or pressure regulation.
该组件会出现在以下整机或工业产品中。
诱因 → 失效模式 → 工程缓解
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The optimal convergence angle typically ranges between 15-30 degrees. Smaller angles minimize flow separation and pressure losses, while larger angles reduce component length. The specific angle depends on application requirements for pressure recovery and flow stability.
Surface finish critically impacts flow characteristics. Smooth finishes (Ra ≤ 0.8 μm) reduce friction losses, minimize turbulence, and improve measurement accuracy. Rough surfaces can cause flow separation, increased pressure drop, and reduced efficiency in flow measurement applications.
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