Putting Colebrook Equation into TI-89

Calculators
Thread starter d.vaughn
Start date May 1, 2012
Tags

Ti-89

In summary, the Colebrook Equation is a mathematical formula used to calculate the friction factor in turbulent flow, commonly used in fluid mechanics and engineering. To enter it into a TI-89 calculator, you can select it from the Equation Writer or manually input it through the Catalog. The equation requires three inputs: the pipe roughness coefficient, Reynolds number, and pipe diameter. The TI-89 can solve for any of these variables, but it's important to double-check inputs and use appropriate units for accurate results.

May 1, 2012

d.vaughn

Does anyone know how to put the colebrook equation into the TI-89?
here is the equation:
1/sqrt(f) = -2log [(k/D)/3.7 + 2.51/(Re x sqrt(f))]

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Mar 7, 2014

nathanthegreat

What are you trying to solve for? Do you want a program to solve this for you?

1. What is the Colebrook Equation?

The Colebrook Equation is a mathematical formula used to calculate the friction factor in turbulent flow. It is commonly used in fluid mechanics and engineering to determine the pressure drop or head loss in a pipe or channel.

2. How do I enter the Colebrook Equation into my TI-89 calculator?

To enter the Colebrook Equation into your TI-89 calculator, press the "Apps" button, scroll down to "Equation Writer," and then select "Colebrook." Alternatively, you can manually input the equation using the "Catalog" button and searching for "Colebrook."

3. What are the required inputs for the Colebrook Equation?

The Colebrook Equation requires three inputs: the pipe roughness coefficient (ε), the Reynolds number (Re), and the pipe diameter (D). These values can be obtained from the pipe specifications or through experimental measurements.

4. Can the TI-89 solve the Colebrook Equation for any variable?

Yes, the TI-89 can solve the Colebrook Equation for any of the three variables: ε, Re, or D. You simply need to input the known values and leave the variable you want to solve for as the unknown.

5. Are there any limitations to using the Colebrook Equation on the TI-89?

The TI-89 is a powerful calculator and can handle complex equations like the Colebrook Equation. However, it is important to note that results may vary depending on the accuracy of the inputs and the calculator's precision. It is always recommended to double-check your calculations and use appropriate units for each input.