Creating a Prototype: Formula & Knowledge for Determining Scale

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Discussion Overview

The discussion revolves around the creation of a prototype for a water pump, focusing on the formulas and knowledge required to determine the appropriate scale for the model. The scope includes practical applications in engineering and design, as well as considerations for fluid dynamics and modeling software.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant inquires about the necessary formulas and knowledge for determining the scale of a prototype water pump.
  • Another participant asks for clarification on whether the project is for school and the intended model type.
  • The original poster mentions that the project is undergraduate-level and intended for real-life industry use, questioning the relevance of dimensional analysis.
  • One participant suggests that dimensional analysis may not be applicable and recommends using CAD software for modeling, providing links to resources and tools.
  • A side question is raised about whether fluid flow will scale proportionally with the size of the model.
  • Another participant asserts that for a pump prototype, the scale must be appropriate to ensure it functions as intended, potentially requiring a full-scale model depending on the fluids involved.
  • Information is shared about Autodesk's student software program, allowing students to access a version of the software with certain restrictions.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the relevance of dimensional analysis for the project, and there are differing opinions on the best approach to modeling and scaling the prototype.

Contextual Notes

There are limitations regarding the assumptions about fluid dynamics and scaling, as well as the dependence on specific modeling software and its applicability to the project.

Who May Find This Useful

This discussion may be useful for undergraduate students or individuals involved in prototype development, particularly in engineering or design fields related to fluid dynamics and modeling software.

javierngkh
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Hi,

I am in the midst of creating a prototype. It is a true model. May I know what are the formulas and knowledge i require to determining the exact scale of my prototype? My model needs to include a working water pump, as well as able to withstand loading.
 
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Welcome to PF!

Is this a project for school? if so what grade level? What kind of model are you planning to develop?
 
Thanks! The level is undergraduate but the product is to be used with real life industry players. It is a water pump. Do I use dimensional analysis?

I am not an engineering student btw.
 
As a side question, will the fluid flow scale proportionally with the size of the model?
 
yeah in the case of a pump prototype you need to be at a scale it does what you intend it to on the full scale model. which might very well mean full scale depending on the fluids.

oh and autodesk has a student software program so students can use a student version of the software as long as they are registered students and keep the output marked as produced by student version.
 

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