WIMAS-2 Weekly Meeting

Wednesday 11 Nov 2020, 10:00 → 11:00 Europe/Berlin

https://kth-se.zoom.us/j/7764082514

Thomas Jonsson

WIMAS-2 Weekly Meeting are technical meetings to plan and coordinate the development of the ETS-6 workflow.

 

Remote participation:

https://kth-se.zoom.us/j/7764082514

1 What's new in ETS-6?

Speaker: Thomas Jonsson

New in ETS-6 11 November 2020.pptx

Jorge: We cannot use Solver-4 with an internal boundary since then we have the wrong grid in the solver.

 

2 Actions from previous meetings

https://docs.google.com/spreadsheets/d/1Ps-cGQyKNsYTObCr5Kqu58bXBNQdH45Fjpz5QD0hLB0/edit?usp=sharing

Speaker: Thomas Jonsson

Andreas - Presentation on PENN

AP: There are many more parameters that are important for the pedestal than the ones used in PENN.Can you handle Ne or N puffing?

• AG: No, there’s not enough data in the database to train the network to predict the effects of seeding.

JF: How’s the separatrix reconstructed in Loreozos fit?

• (No clear answer)

JF: In T17-07 we uses PENN and the pulse you’ve been using. I’ll be comparing PENN with Lorenzo’s scaling law.

AP: Do you have data for AUG?

• Yes, but the AUG db has only 200 pulses, while JET has 2000 pulses.

 

Rui - Presentation on SOLPSz1

RC: There’s an issue with output_flag, see slack.

• TJ: Ok, I’ll update the TRANSPORT_SOLVER.

AP:

• We now have three different versions of SOLPSz.
• If you’re interesting  we’d like to continue to collaborate!

RC:

• SOLPSz1 has an “onion” structure, we could easily update the solpsz-core.
• Inputs to SOLPSz1 can come from either IDSs or code parameter, this is handled by the wrapper and is easy to change.

JF: When will we have interpretative (db) impurities?

• TJ: It’s not hard to implement; depends on the urgency.
• JF: Well, first I’ll test with static impurities.

JF: we need pedestal actor

• TJ: Yes, the plan is to add this in the transport combiner.
• DC: Please tanh function to turn off transport in the edge.

AP: Could be good to have an inertia parameter to damp transient changes in the edge. There’s a natural time scale of the order 10 ms.

• DC: This already exists. The time scale is determined by the parameter called “suger”
• TJ: Perhaps we should use more descriptive code parameter variables in SOLPSz1.

 

Abreviations:
AP: Alexei Polevoi
AG: Andreas Gillgren
JF: Jorge Ferreira
RC: Rui Coelho
TJ: Thomas Jonsson
DC: David Coster

3 Report from sprint 2nd sprint on core-edge coupling

Speakers: Andreas Gillgren (Chalmers), Rui Coelho (IPFN-IST)

PENN_sprint_wimas.pdf

SOLPSZ1_status.pptx

Andreas - Presentation on PENN

AP: There are many more parameters that are important for the pedestal than the ones used in PENN.Can you handle Ne or N puffing?

• AG: No, there’s not enough data in the database to train the network to predict the effects of seeding.

JF: How’s the separatrix reconstructed in Loreozos fit?

• (No clear answer)

JF: In T17-07 we uses PENN and the pulse you’ve been using. I’ll be comparing PENN with Lorenzo’s scaling law.

AP: Do you have data for AUG?

• Yes, but the AUG db has only 200 pulses, while JET has 2000 pulses.

 

Rui - Presentation on SOLPSz1

RC: There’s an issue with output_flag, see slack.

• TJ: Ok, I’ll update the TRANSPORT_SOLVER.

AP:

• We now have three different versions of SOLPSz.
• If you’re interesting  we’d like to continue to collaborate!

RC:

• SOLPSz1 has an “onion” structure, we could easily update the solpsz-core.
• Inputs to SOLPSz1 can come from either IDSs or code parameter, this is handled by the wrapper and is easy to change.

JF: When will we have interpretative (db) impurities?

• TJ: It’s not hard to implement; depends on the urgency.
• JF: Well, first I’ll test with static impurities.

JF: we need pedestal actor

• TJ: Yes, the plan is to add this in the transport combiner.
• DC: Please tanh function to turn off transport in the edge.

AP: Could be good to have an inertia parameter to damp transient changes in the edge. There’s a natural time scale of the order 10 ms.

• DC: This already exists. The time scale is determined by the parameter called “suger”
• TJ: Perhaps we should use more descriptive code parameter variables in SOLPSz1.

 

Abreviations:
AP: Alexei Polevoi
AG: Andreas Gillgren
JF: Jorge Ferreira
RC: Rui Coelho
TJ: Thomas Jonsson
DC: David Coster

4 Planning the upcoming ETS-6 Training

Speaker: Thomas Johnson (Fusion Plasma Physics (KTH/VR))

Planning the ETS-6 training.pptx

5 Any other business