Calculating Ejector - Q1, P1, V1, Q2, P2, V2

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SUMMARY

The discussion focuses on the relationship between the water flow (motive flow) and the air flow (suction flow) in a nozzle utilizing the Venturi effect. The key parameters involved are the flow rates (Q1 for water and Q2 for air), pressures (P1 for water and P2 for air), and velocities (V1 for water and V2 for air). The participants seek to derive a mathematical equation that relates these variables, emphasizing the complexities involved in the calculations. The inquiry highlights the need for a deeper understanding of fluid dynamics principles in practical applications.

PREREQUISITES
  • Fluid dynamics principles, specifically the Venturi effect
  • Basic equations of motion for fluids
  • Understanding of pressure and flow rate relationships
  • Mathematical modeling techniques for fluid systems
NEXT STEPS
  • Research the Bernoulli equation and its applications in fluid dynamics
  • Learn about the continuity equation in fluid mechanics
  • Explore the concept of pressure drop in nozzles and its implications
  • Investigate computational fluid dynamics (CFD) tools for simulating fluid flow
USEFUL FOR

Engineers, fluid dynamics researchers, and anyone involved in designing or analyzing systems that utilize the Venturi effect for mixing fluids.

richinguyen
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Hi everyone, could you please help me in this:
There's a nozzle which use venturi effect to suck air from the atm and mix it with water. Say the water flow is motive flow (flow 1), and the air flow is suction flow (flow 2). The inlet water flow through a nozzle to increase its velocity (and thus decrease pressure), then enter a mixing chamber, the low pressure of the water flow cause air from the atm to be sucked to the mixing chamber through a second inlet. Say the motive flow (water) has flow rate Q1, pressure P1, velocity V1, and the suction flow (air) has flow rate Q2, pressure P2, velocity V2. What is the relation equation between them?
Thank you very much!
 
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