Pinhole jet-type two-phase dynamic observation device

Abstract

The invention discloses a pinhole jet-type two-phase flow dynamic observation device, and belongs to the technical field of two-phase flow dynamic observation. The pinhole jet-type two-phase dynamic observation device comprises a constant pressure gas cylinder, a pressure reducing valve, a liquid storage tank, a liquid pump, a first pressure meter, a first control valve, a second control valve, a pinhole jet-type two-phase flow analog device and a photographic device, the constant pressure gas cylinder is connected to the pressure reducing valve, the first pressure meter and the first control valve in sequence, the liquid storage tank is connected to the liquid pump and the second control valve in sequence, the second control valve and the first control valve are connected to the pinhole jet-type two-phase flow analog device, and the photographic device is placed at one side of the pinhole jet-type two-phase flow analog device; the pinhole jet-type two-phase flow analog device comprises two glass sheets which are parallelly and oppositely arranged and at least two feeler gauges arranged between the two glass sheets in a spaced mode, and the opposite two sides of each feeler gauge are both tightly attached to the two glass sheets; the adjacent two feeler gauges and the two glass sheets form a micro-channel. According to the pinhole jet-type two-phase flow dynamic observation device, flowing conditions of gas-liquid two-phase flow can be simulated, and the dynamic flow pattern of the gas-liquid two-phase flow can be directly observed and recorded in real time.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of two-phase flow dynamic observation, in particular to a pinhole injection type two-phase flow dynamic observation device. [0003] 【Background technique】 [0004] The motion law of gas-liquid two-phase flow and the interaction between this shape and other motion shapes are one of the main research contents of two-phase fluid mechanics. The research on gas-liquid two-phase flow is developed with the needs of industrial technology, especially in the 21st century, due to the rise of chemical engineering, metallurgy, aerospace, thermal engineering, hydraulic engineering, and even nuclear energy engineering, environmental protection and other fields With the development and development, the study of gas-liquid two-phase flow has been paid more and more attention, thus promoting its formation into a complete applied basic discipline. However, due to the inherent complexity and diversity of gas-liquid tw...

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Problems solved by technology

[0005] The theoretical analysis of two-phase flow is much more difficult than that of single-phase flow, and the general differential equations describing two-phase flow have not been established so far

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