Which Length Ratio is Correct in Fluid Mechanics?

Thread starter welovephysics
Start date May 28, 2016
Tags

Fluid Fluid mechanics Mechanics

AI Thread Summary

In fluid mechanics, the length ratio (Lr) can be defined as the ratio of the length of the prototype to the length of the model. However, some sources suggest that the inverse ratio, length of the model divided by the length of the prototype, is also valid for Lr. This has led to confusion regarding which definition is correct. Clarification is needed on whether both interpretations can coexist or if one is preferred in specific contexts. Understanding the correct application of length ratios is essential for accurate modeling in fluid mechanics.

May 28, 2016

welovephysics

Homework Statement

i know that the ratio of length of prototype divided by the length of model would yield Lr

But , some book gave that length of model divided by length of prototype also= Lr ?

Homework Equations

The Attempt at a Solution

Which is correct ?

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May 28, 2016

welovephysics

IMO , both also correct ? am i correct ? can someone clarify?

May 29, 2016

welovephysics

bump

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