Water stream projection distance calculation for different nozzle shapes

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Discussion Overview

The discussion revolves around calculating the projection distance of water streams from different nozzle shapes, particularly when directed horizontally or at a 45-degree angle. Participants explore the effects of gravity and nozzle angle on the distance traveled by the water stream, with a focus on practical applications for a device being tested.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Homework-related

Main Points Raised

  • The original poster (OP) seeks guidance on the formulas for calculating the distance water can be projected from nozzles at various angles, specifically noting the challenge of finding relevant equations for horizontal or upward projections.
  • Some participants inquire about the specific equations the OP has encountered and what attempts have been made to apply them.
  • One participant suggests that the OP might find useful information in firefighting sources, proposing that empirical data may be more accessible than theoretical equations.
  • The OP mentions working on a spray coverage formula and seeks to connect it with the water jet formula, aiming to determine the distance before drift under theoretical conditions without wind.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the best approach to calculate the projection distance, and multiple viewpoints regarding the use of equations versus empirical data remain present.

Contextual Notes

The discussion highlights the OP's lack of background in the relevant fields, which may limit their understanding of the equations involved. There is also an acknowledgment of the theoretical nature of the calculations being discussed, particularly in the absence of wind.

Who May Find This Useful

This discussion may be useful for individuals interested in fluid dynamics, nozzle design, or practical applications of water projection in engineering contexts.

sabenabe
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Hello,
I have built a device and i want to test different types of nozzles. Problem is; the size of the nozzles i need are hard to find in company stock. So i need to make sure before i make any order.

I have no background or degree any related area so it is hard to understand the equations, how to use them in my case.
I have checked all the formulas about nozzle distance but in most examples the nozzle are directed to the ground.

If someone have spare time, please guide me about the formula for distance that nozzles can shoot water before drift when directed horizontally or upwards with a 45 degree angle like in the pic attached.

I am using a 120 PSI diaphragm pump, 6mm tubes and 0.4mm misting nozzle. What is the effect of the gravity and nozzle angle in this case?

Thank you.
 

Attachments

  • Nozzle shoot distance.png
    Nozzle shoot distance.png
    1.7 KB · Views: 350
Last edited by a moderator:
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Please tell us more details about the equations you've seen, and what you have tried so far.
 
I imagine the OP has looked for information in Firefighting sources? I would imagine that tables obtained from measurements would be more available than equations.
 
Chestermiller said:
Please tell us more details about the equations you've seen, and what you have tried so far.
Hello, i am working on the spray coverage formula and trying to find a connection with the water jet formula. I need to find the "L" before drift in different positionings of the nozzle. Atmospheric conditions but no wind. I guess it will be theoretical.
Thank you.

@sophiecentaur now i will check those too, Thank you.
 

Attachments

  • Spray coverage.png
    Spray coverage.png
    81.5 KB · Views: 439
  • Water Jet.png
    Water Jet.png
    40 KB · Views: 438

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