Ladies spurt the perfume, the painters spurt the picture to use are the sprayers, when the advertising agent manufactures the advertisement, you will also see the sprayer. Why can the sprayer the perfume, raw material, the paint spurt? Below, we analyze: The following chart is sprayer's schematic diagram, it is big using the speed of flow, the intensity of pressure small principle makes, lets the air flow out rapidly from the eyelet, the eyelet nearby intensity of pressure is small, in the vessel above the liquid level air pressure is formidable, the liquid rises along the eyelet under narrow tube, flows out after narrow tube's upper opening, the air current impact, is pulverized the shape. Moreover, gasoline engine's carburetor, with sprayer's principle is the same.
Here has an experiment, may provide some simple concepts. A flimsy, cuts belt-shaped, grasps an end, draws close to nearby the mouth, makes an effort to move the paper tape.
This time the scallop will be blown the horizontal shape, the image plane flag, if will continue to blow, this kind of condition will maintain. What this is interlinked with sprayer's principle, mouth scallop, air current after belt surface, but causes above scallop's air to flow high speed, place above causes the intensity of pressure to be small, forms the intensity of pressure with scallop's underneath air to be bad, overcomes the gravity, causes the scallop to become the horizontal shape.
The experts will often have the suspicion to the thing conclusion, they will track rather down cause this kind of conclusion the process. When you saw the air current has ability which pushes upwardly the thing, will suspect? Comes, we do an experiment again, definitely an its answer. Prepares a reel, exchanges the tube shape the cardboard, inserts the axle center, in addition prepares a smooth paper, cuts a diameter 3 centimeter circular, inserts a pin in the center of circle, the set under the reel which arranges, round paper fixed good. Then makes an effort the air flush above the paper drum, by now you certainly will think the following paper is blown by you have run, result? Just the opposite!
When air flush why can't the round paper fall, counter-can paste firmly with the reel? We saw the air current held probably the paper. In this experiment, with root pin in central fixed, is to fix the slip of paper in central; If removes the pin, the round paper will fall. Schoolmates may try to use the above principle to carry on the explanation.