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Inlet Velocity in Nozzle refers to the speed at which fluid enters a nozzle, calculated based on the volumetric flow rate and the cross-sectional area at the inlet. It is a critical parameter in fluid dynamics and nozzle design.
The calculator uses the formula:
Where:
Explanation: This formula derives from the continuity equation, where the volumetric flow rate equals the cross-sectional area multiplied by the velocity.
Details: Accurate inlet velocity calculation is essential for designing efficient fluid systems, predicting flow behavior, ensuring proper nozzle performance, and avoiding issues like cavitation or excessive pressure drops.
Tips: Enter volumetric flow rate in m³/s and inlet diameter in meters. Both values must be positive numbers. The calculator will compute the inlet velocity in meters per second.
Q1: Why is the formula structured this way?
A: The formula comes from rearranging the continuity equation Q = A × V, where A = πD²/4 for a circular cross-section.
Q2: What are typical inlet velocity values?
A: Inlet velocities vary widely depending on application, but typically range from 0.5-10 m/s for many industrial fluid systems.
Q3: How does inlet diameter affect velocity?
A: Velocity is inversely proportional to the square of the diameter. Halving the diameter quadruples the velocity for the same flow rate.
Q4: Are there limitations to this calculation?
A: This assumes steady, incompressible flow and a perfectly circular cross-section. Real-world factors like turbulence and viscosity may affect actual velocities.
Q5: Can this be used for compressible fluids?
A: For compressible fluids at high velocities, additional factors like density changes and Mach number must be considered.