HDGL Exit Port Analysis · Two-Port vs One-Port

Two-Port — hot/cold separate
One-Port — shared mixing exit

■ Two-Port (separate hot/cold exits)

Net thrust (per shell)—
Collision velocity—
Mixing locationDownstream (open)
Pipe alignmentTangent-matched

■ One-Port (shared mixing exit)

Net thrust (per shell)—
Collision velocity—
Mixing locationConfined (inside toroid)
Pressure buildupYes — reaction zone
Violence (relative velocity) is identical in both designs — the toroid geometry determines it, not the exit configuration.   Two-port wins on thrust efficiency by exactly 2× — the two tangent vectors add constructively in Z.   One-port wins if mixing/reaction is the goal — hot and cold are forced together inside the confined toroid volume before exiting, building pressure at the reaction zone.   Both designs require tangent-aligned pipes (≈70° above toroid XY plane) — current radial pipes capture 0% of the actual flow momentum.