# Definition of a scenario

## Definition

A scenario of solving process is an Flux PEEC entity that defines the steps of a parametrized solving process.

A scenario of solving process defines:

• what are the parametrized quantities?
• what are the values required for each parameter?
Note: * Any Flux PEEC solving process is considered as a parametrized solving process. If the parameter gets only one value, it is about a parametrized mono-value solving process.

## Operation

The current scenario (SCENARIO_1 by default) is defined since the project is open (compulsory definition).

It can be modified as long as the project is not solved.

To modify a scenario after the solving process, the results should be deleted. (To keep the results, save the project under another name).

## Definition

A scenario of the solving process is defined by:

• a name (and a comment)·
• the piloted parameter: the frequency
• a type·
• specific characteristics belonging to a type

## Name

The name to identify the scenario of the solving process is set by the user during the creation of this one.

A comment (optional) can be added to the name.

## Type of scenario

There are two types of scenario:

• the scenario of mono value type
• the scenario of multi values type

## Scenario of mono value type

In case of the scenario of mono value type, Flux PEEC launches a mono parametrized solving process with the value of the frequency entered by the user.

## Scenario of multi values type

In case of the scenario of multi values type, Flux PEEC launches a multi parametrized solving process with the frequency values entered by the user by contiguous intervals.

An interval of frequencies is a set of values between a lower limit finf and an upper limit fsup. Moreover, these values can be identified by mathematical laws.

In Flux PEEC two successive intervals must be contiguous, in the sense that the lower limit of the second interval must coincide with the upper limit of the first interval.

There are different ways to describe a range of frequencies, as presented in the table below.

Variation mode Description
Step value Constant step Δf between endpoints finf, fsup
Number of steps (lin)

Number of steps for linear variation

between endpoints finf, fsup

Number of steps (log)

Number of steps for logarithmic variation

between endpoints finf, fsup

List of values

User-defined list of values

between endpoints finf, fsup