How to read this: Each Fluid → slider sets that jet’s horizontal drive and which screen edge supplies it: negative pulls from the right, positive from the left (× jet flow strength). If both sliders have the same sign, both jets push the same way — you get a dominant sideways sweep, not a head-on crash. Use opposite signs (e.g. A −1, B +1) for counter-flow — use Counter-flow (flip B) next to Reset if both ended up the same. Same height on A and B stacks both jets — separate them vertically for two streams. Viscosity high = calm sheets; low = eddies. Preset Wild turbulence is a strong starting point. The sim uses soft latitude masks only to say where each jet lives — not a legacy “belt” model.