# Solution

![](https://3867130239-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LPHXQ1CBjfLUuUW94tN%2F-LPHXSV32c4bM8DFZc3w%2F-LPHXUEU_7AKRrkBCsJd%2FSolution.png?generation=1540056807866844\&alt=media)

Run recipes using OpenFOAM. -

## Inputs

* **case \[Required]**

  A Butterfly case.
* **recipe \[Required]**

  A Butterfly recipe.
* **decomposeParDict \[Optional]**

  decomposeParDict for parallel run. By default solution

  runs in serial.
* **solutionParams \[Optional]**

  Butterfly solutionParams. These parameters can be edited

  while the analysis is running. Ensure to use valid values. Butterfly

  does not check the input values for accuracy.
* **interval \[Default]**

  Time interval for updating solution in Grasshopper in seconds.
* **write \[Required]**

  Script input \_write.
* **run \[Optional]**

  Script input \_run.

## Outputs

* **readMe!**

  Reports, errors, warnings, etc.
* **solution**

  Script output solution.
* **isRunning**

  Script output status.
* **timestep**

  Script variable solution
* **residualFields**

  Script variable solution
* **residualValues**

  Script variable solution
* **logFiles**

  Script output logFile.

[Check Hydra Example Files for Solution](https://hydrashare.github.io/hydra/index.html?keywords=Butterfly_Solution)