Simulation Runners
Overview
Simulation runners control the progression of the simulation.
SteadyRunner: Used for solving stationary problems using a fixed number of iterations.UnsteadyRunner: Used for time-dependent simulations with explicit time stepping.
Both runners can be assigned to the simulation instance and executed using the .run() method.
Coefficient Functions
Each runner registers simulation progress fields as coefficient functions:
Name |
Type |
Description |
|---|---|---|
Iteration [-] |
Scalar Field |
Current global iteration number in the steady-state solver. |
Name |
Type |
Description |
|---|---|---|
Time [s] |
Scalar Field |
Current physical simulation time. |
Iteration [-] |
Scalar Field |
Iteration number within the current time step. |
Example
import mufem
sim = mufem.Simulation.New("Transient Example", "data/geometry.mesh")
runner = mufem.UnsteadyRunner(total_time=1.0, time_step_size=0.1, total_inner_iterations=3)
sim.set_runner(runner)
sim.run()
field_exporter = sim.get_field_exporter()
field_exporter.add_field_output("Time")
# @todo: field_exporter.add_field_output("Time Step")
# @todo: field_exporter.add_field_output("Iteration")
field_exporter.save()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Welcome to μfem (0.2.94-dev) by Raiden Numerics LLC.
μfem - a finite element application framework
__
_ _ / _| ___ _ __ ___
| | | || |_ / _ \| '_ ` _ \
| |_| || _|| __/| | | | | |
| __/ |_| \___||_| |_| |_|
|_|
https://www.raiden-numerics.com/mufem
For questions and bug reports please reach out to mufem@raiden-numerics.com
or visit https://www.raiden-numerics.com/mufem/.
Usage at own risk. No warranty provided.
License: Community (Non-commercial)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Total processes: 1
Mesh: Elements(12) Vertices(9) Edges(26) Faces(30)
Starting...
Starting unsteady simulation.
1 - No residuals available -
2 - No residuals available -
3 - No residuals available -
Time: 0.1 of 1 with Δt=0.1
4 - No residuals available -
5 - No residuals available -
6 - No residuals available -
Time: 0.2 of 1 with Δt=0.1
7 - No residuals available -
8 - No residuals available -
9 - No residuals available -
Time: 0.3 of 1 with Δt=0.1
10 - No residuals available -
11 - No residuals available -
12 - No residuals available -
Time: 0.4 of 1 with Δt=0.1
13 - No residuals available -
14 - No residuals available -
15 - No residuals available -
Time: 0.5 of 1 with Δt=0.1
16 - No residuals available -
17 - No residuals available -
18 - No residuals available -
Time: 0.6 of 1 with Δt=0.1
19 - No residuals available -
20 - No residuals available -
21 - No residuals available -
Time: 0.7 of 1 with Δt=0.1
22 - No residuals available -
23 - No residuals available -
24 - No residuals available -
Time: 0.8 of 1 with Δt=0.1
25 - No residuals available -
26 - No residuals available -
27 - No residuals available -
Time: 0.9 of 1 with Δt=0.1
28 - No residuals available -
29 - No residuals available -
30 - No residuals available -
Time: 1.0 of 1 with Δt=0.10000000000000009
Simulation done. Thank you for using the software.