Real-life fluids, like air, water, oil, blood, shampoo, or anything like that, often don't perfectly obey the fairly straight-forward Bernoulli's principle, and in some cases Bernoulli's principle doesn't really come close to describing the behavior of real-life fluids when they're flowing in real-life situations.
Venus flytrap grows up to 1 foot in height and 9 inches in width. In early spring, 12-inch stems sprout above the plant, producing clusters of white cup-like flowers. In midsummer, specialized leaves, or traps, develop.
Venus Flytrap native habitat is located in USDA Hardiness Zone 8b, with an average annual minimum temperature of 10 to 15 degrees F (-9.5 to 12.2 degrees C). This is hardly tropical.