Fluid flow rate lab- with analysis

In summary, the problem statement is about measuring the flow rates of liquids with different viscosities through holes of varying sizes. The variables are the independent variables of different liquids and the diameter of the hole, and the dependent variable of flow rate. The equation used is flow rate = ΔV/Δt, and the main question is whether to graph density or viscosity against flow rate. There is an equation, the Andrade equation, that relates density and viscosity.
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Homework Statement



Problem statement: We are measuring the flow rates of liquids of different viscosities through holes of varying sizes. We ultimately want to observe the relationship between the viscosity and the flow rate, and also between the diameter and the flow rate.

Variables:
Independent- different liquids (different viscosities); diameter of hole
Dependent- flow rate

Homework Equations


Flow rate = ΔV/Δt

The Attempt at a Solution


We need for all of our variables to be of quantitative nature but at the moment, we cannot measure the viscosity of our liquids.

My main question is if I should try to graph the density of my liquids against the flow rate as opposed to the viscosity (since the density is something I can easily measure)? I am worried that this approach will lead to data upon which no conclusion can be drawn since the density of a liquid does not determine its viscosity.

Basically I am hoping that there is an equation I can use that uses the flow rate and density of a liquid to calculate its viscosity. Is there such an equation?
 
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  • #2
The answer is yes, there is an equation that relates density and viscosity. It is the Andrade equation, which states:η = Aρ^nwhere η is viscosity, ρ is density, A is a constant, and n is a power factor.
 

Related to Fluid flow rate lab- with analysis

1. What is the purpose of a fluid flow rate lab?

The purpose of a fluid flow rate lab is to measure the rate at which a fluid (such as water or air) flows through a system. This can be useful in understanding and analyzing the performance of various systems, such as pipes, pumps, and valves.

2. What equipment is needed for a fluid flow rate lab?

The equipment needed for a fluid flow rate lab typically includes a flow meter, a measuring container, a stopwatch or timer, and any necessary tubing or connections. Other equipment may also be used, depending on the specific experiment or analysis being conducted.

3. How is the flow rate of a fluid measured in a lab?

The flow rate of a fluid can be measured by using a flow meter, which measures the volume of fluid passing through a specific point in a given amount of time. The flow rate can also be calculated by measuring the time it takes for a certain volume of fluid to pass through a specific point, using a stopwatch or timer.

4. What factors can affect the flow rate of a fluid?

Several factors can affect the flow rate of a fluid, including the viscosity of the fluid, the diameter and length of the pipe or channel through which the fluid is flowing, and any obstructions or changes in direction in the flow path. Changes in temperature and pressure can also impact the flow rate.

5. How is data from a fluid flow rate lab analyzed?

Data from a fluid flow rate lab is typically analyzed by plotting the flow rate over time or against other variables, such as pressure or velocity. This allows for the identification of patterns and relationships, which can be used to draw conclusions and make predictions about the behavior of the fluid and the system being studied.

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