Experimental device and experimental method for generation of bubbles of electric spark in water

Abstract

The invention provides an experimental device and an experimental method for generation of bubbles of an electric spark in water. Two copper wires are fixed on two metal electrodes respectively; the two metal electrodes and a capacitor (C) are connected in parallel to two ends of a resistor (R) and two ends of a power supply (U); the experimental device also comprises a single-pole double-throw switch (K); the single-pole double-throw switch (K) is connected with one end of the power supply, one end of each copper wire and one end of the capacitor respectively; the two metal electrodes are placed in a transparent water tank; a high-speed camera and a light source are arranged on two sides of the water tank; the high-speed camera and the light source are in the same horizontal plane; and degassed water is filled in the water tank. The experimental device serves as a generation device of the bubbles in a mode of electric spark lighting, and the copper wires are melted by great energy which is released by electrode discharging so as to gasify surrounding fluids to form the bubbles. By the invention, real underwater explosion can be simulated simply relatively; the experimental method becomes powerful experiment means which replaces the real explosion; and an effective experimental way is provided for research of a bubble theory.

Description

technical field [0001] The present invention relates to an experimental device, in particular to a single bubble generation device, in particular to a device and method for generating and photographing violent underwater bubbles by using an electric spark ignition device and high-speed photography technology. Background technique [0002] In nature, there are many examples of air bubbles in fluids. These natural phenomena can be exploited in beneficial ways or they can lead to serious disasters. For example, the enormous force of bubbles produced by an underwater explosion can cause severe damage to a ship. However, the real ship explosion phenomenon is quite complicated, and the physical experiment is not easy to implement. Moreover, the particularity of underwater explosion and water quality and other conditions have brought great difficulties to high-speed cameras to capture clear bubble images. The acquisition of experimental bubble images is very precious. Therefore,...

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Problems solved by technology

The above experimental studies all have the characteristics of complex experimental devices, unsatisfactory experimental results, and low experimental safety.

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