Piecewuse polinomial

- December 28, 2018 at 4:18 pm
  
  hugo CFD
  Subscriber
  
  To use the piecewise polynomial method how to define the coefficients?
- December 30, 2018 at 4:03 pm
  
  raul.raghav
  Subscriber
  
  Attached is a screenshot from the Ansys Fluent User Guide regarding the inputs for the Piecewise-polynomial function. Let us know if this helps.
- December 31, 2018 at 12:56 am
  
  hugo CFD
  Subscriber
  
  OK. But I need to define a new invertavlo, less than 300 K. In other words, I need to define a range from 275 K to 500K. How do I define the coefficients? how do I know which coefficient to use, to define an expression, such as 8.2-5?
- January 1, 2019 at 3:11 am
  
  raul.raghav
  Subscriber
  
  Can you explain what you're trying to define? Do you have an polynomial equation relating two variables that you want to define? Eqn 8.2-5 in the screenshot is only an example given to show the inputs for the Piecewise-polynomial function. You define your function based on a equation from the literature or some other source that would have access to.