Sepsis Capillary Leak: Interstitial Edema Field (2D)

This is the 2D field companion to the 3D single-capillary Starling–Landis simulator. Instead of one cylinder with a spatially-uniform leak, it solves the identical filtration law at four parallel capillaries embedded in a 2D tissue cross-section, then lets the leaked fluid and albumin diffuse and drift downward under a gravity term, exactly the way real capillary-leak edema pools unevenly in dependent tissue. The result is a genuinely distinct, spatially-resolved view of the same physiology — visible directly as a pooling heatmap and a depth profile the 3D scene's uniform model cannot produce.