HDGL Hourglass · Dual-Port · Helix-Tangent Pipes · Tight Interwoven Toroid
Hot funnel (+z)
Cold funnel (−z)
Hot toroid (n=12)
Cold toroid (n=12)
Hot exit (tangent-aligned)
Cold exit (tangent-aligned)
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Speed
Trails
Density
Toroid: 12 turns · r_minor = channel_width/2 · R_major = 30% of funnel spine · Pipes: helix-tangent-aligned (58–75° above toroid plane)