This article presents the solution to the Macro competition task from the STAR-Global conference 2016.
| Attachments: | pid.pdf (89 KB) ProposedSolution.java (1 KB) |
The second Simcenter STAR-CCM+ Macro Competition took place at the 2016 STAR Global Conference in Prague. That year, the competition was part of the Java Lecture. During such a lecture, a set of macros and a simulation were used. At the end of the lecture, the macro competition started by posing a question related to the simulation to the participants.
This video shows the proposed solution implemented through a negative feedback loop. The attached PDF file shows that this is equivalent to a pure integral controller. The pdf also shows how to implement full PID controllers without resorting to derivative or integral calculations.
The java file I've attached is the Simcenter STAR-CCM+ macro as shown in the video (Do Note: use double precision in Simcenter STAR-CCM+ when testing it).
See also:
Macro Competition 2016. Part I: Problem statement.
How to store and access results from previous iteration or previous time step?
How to get time integral and time derivative
Implementing a Proportional-Integral (PI) controller in Simcenter STAR-CCM+
Music: http://www.bensound.com