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OpenFOAM cold-plate CFD simulation (8 chips, Pro envelope) #5

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opened 2026-05-24 03:12:49 -03:00 by navigator · 1 comment
navigator commented 2026-05-24 03:12:49 -03:00
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Per PLAN.md Section 2.7 + 11.2 — execute the CFD sweep documented in board/cfd/cold-plate-spec.md.

Status: Spec DRAFTED in initial commit.

Next steps:

  1. Scaffold case-template/ with blockMeshDict, snappyHexMeshDict, BCs per spec sections 6-7
  2. Author 9 STL files (cold-plate, microchannels per zone, die patches)
  3. Implement run-sweep.sh orchestrator
  4. Run 15-case matrix on 32-core host (~90h total)
  5. Author board/cfd/results-v1.md with tables + plots
  6. Cross-validate vs Dittus-Boelter / Shah-London (±20%)
  7. Cross-validate vs Jia et al. 2026 + Wei et al. 2023 (±30%)

Acceptance: T_j,max < 85 °C at all 8 SoCs for T_inlet <= 35 °C at recommended Q_op; uniformity <= 5 K.

Per PLAN.md Section 2.7 + 11.2 — execute the CFD sweep documented in board/cfd/cold-plate-spec.md. **Status:** Spec DRAFTED in initial commit. Next steps: 1. Scaffold case-template/ with blockMeshDict, snappyHexMeshDict, BCs per spec sections 6-7 2. Author 9 STL files (cold-plate, microchannels per zone, die patches) 3. Implement run-sweep.sh orchestrator 4. Run 15-case matrix on 32-core host (~90h total) 5. Author board/cfd/results-v1.md with tables + plots 6. Cross-validate vs Dittus-Boelter / Shah-London (±20%) 7. Cross-validate vs Jia et al. 2026 + Wei et al. 2023 (±30%) **Acceptance:** T_j,max < 85 °C at all 8 SoCs for T_inlet <= 35 °C at recommended Q_op; uniformity <= 5 K.
navigator commented 2026-05-24 15:14:21 -03:00
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Architecture Decision Record

  
agent:blocked-ci

CI failed on the PR

  
agent:blocked-human

Operator escalated; awaiting Marcos input

  
agent:blocked-resolver

Resolver crashed, returned empty, or timed out

  
agent:done

PR merged; issue auto-closed

  
agent:in-progress

Resolver claimed and running

  
agent:no-touch

Human-reserved; swarm Opener/Dispatcher skip

  
agent:pinged

Operator already escalated; suppress repeat pings

  
agent:pr-open

Resolver opened a PR; awaiting review/merge

  
agent:queued

Issue ready for swarm Resolver to claim

  
agent:wip

PR work-in-progress; Approver skips

  
area:board

PCB / mechanical / cooling

  
area:funding

PACID / grants / RFQs

  
area:infra

Dev env, CI, containers

  
area:phy

Physical layer / SerDes

  
area:poplink

PopLink protocol

  
area:rtl

Chisel/RTL work

  
area:software

Driver / runtime / frameworks

  
area:supply-chain

Foundry, OSAT, PCB, components

  
area:verification

Test, formal, coverage

  
ci-failed

auto-merge.sh detected CI failure

  
ci-timeout

auto-merge.sh hit CI timeout

  
docs

Documentation

  
do-not-merge

Hard hold; PR Approver skips

  
human-approved

Marcos approved via Telegram; release governance hold

  
needs-human-approval

Touches governance path; awaits Marcos label human-approved

  
needs-rebase

PR is not mergeable; rebase needed

  
needs-triage

Issue from untrusted author; Marcos triage needed

  
phase:1

Phase 1 (Section 6 of PLAN.md)

  
ready-for-review

Resolver done; PR Approver triages

  
review:findings

PR semantic review flagged blocking findings

  
review:pass

PR semantic review passed; safe for pr-approver

  
risk:tripwire

Section 0.5 tripwire fired

  
swarm:quarantined

Escalation tripwire fired; resolver tried off-limits paths

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