Multi-physical field coupling liquid bridge capillary convection comprehensive experiment platform and method
A multi-physics, experimental platform technology, applied in the field of capillary convection comprehensive experimental platform, can solve problems such as single function and not yet developed, and achieve the effect of simple operation, compact structure and cost saving
Active Publication Date: 2021-03-05
SHENYANG INST OF ENG
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Problems solved by technology
However, most of the liquid bridge experimental systems introduced in the existing literature on the suppression of oscillating capillary convection by external physical fields are traditional liquid bridge experimental platforms (single function, which can only undertake the research on the influence of a single physical field on the capillary convection inside the liquid bridge), Or the research on capillary convection of liquid bridges under multi-physics coupling based on numerical simulation methods. A liquid bridge capable of simultaneously applying multi-physics coupling (rotational motion, gravity inclination, surrounding shear flow, concentration difference, temperature difference) has not yet been developed. Capillary convection comprehensive experimental platform.
Method used
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Embodiment 1
[0087] An experimental process of a capillary convection comprehensive experimental platform with a multi-physics field application function, comprising the following steps:
[0088] (1) Construction of liquid bridge area
[0089] First, inject the liquid bridge medium through the microporous channel, adjust the rail motor to move the upper bracket up and down to obtain the liquid bridge height required for the experiment, and the static liquid bridge maintains the interface shape through surface tension.
[0090] (2) Multi-physics application
[0091] To study the influence of the rotation movement on the capillary convection inside the liquid bridge, adjust the height of the motor bracket, turn on the power to start the rotation motor, and then force the upper plate of the liquid bridge connected by the belt to rotate at a constant speed. in the opposite direction.
[0092] To study the influence of the interface shape on the capillary convection inside the liquid bridge, tu...
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Abstract
The invention relates to a multi-physical field coupling liquid bridge capillary convection comprehensive experiment platform and method. The platform comprises a liquid bridge generation device, a lead screw guide rail device, a motor rotating device, a support rotating device, a shear airflow applying device, a flowing structure image acquisition device and a temperature information acquisitionand feedback control device. The lead screw guide rail device comprises a guide rail motor, a linear module sliding rail and a displacement intelligent control terminal. A sliding block is arranged onthe linear module sliding rail. The displacement intelligent control terminal is a sensor or a travel switch. The support rotating device comprises a sliding rail support, a supporting shaft, a base,a supporting shaft support, an upper bracket and a lower bracket. The slide rail support is arranged on the right of the base. The supporting shaft support is located on the left of the base. The experiment platform is reasonable in design, compact in structure, convenient to use and capable of achieving simultaneous application of multiple physical fields.
Description
technical field [0001] The invention relates to a multi-physics field coupled liquid bridge capillary convection comprehensive experiment platform and method. In particular, it relates to a capillary convection comprehensive experiment platform, which belongs to the technical field of mesoscale fluid physics, and specifically relates to a capillary convection comprehensive experiment platform with a fully automatic multi-physical field coupling application function. Background technique [0002] The floating zone method is a widely used method for preparing high-quality semiconductor crystal materials. The material rod is heated by the outside, and the melting zone is supported between two solid material ends, and the heated melting zone is gradually pulled. In the current experimental research stage, the liquid bridge is an ideal physical model established for simulating the crystal growth process of the floating zone method. [0003] At present, the existing research res...
Claims
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IPC IPC(8): C30B13/30C30B30/00G09B23/26
CPCC30B13/30C30B30/00G09B23/26Y02E30/30
Inventor 杨硕马珊珊马瑞傅玉栋高宇崔洁周晓峰邓乔声隋德洋杨新乐
Owner SHENYANG INST OF ENG