Construction method of transient motion model of purified bubbles in melt under ultrasonic and swirl field
A technology of transient motion and construction methods, applied in design optimization/simulation, CAD numerical modeling, instruments, etc., can solve the problems of lack of theoretical basis and inability to obtain the trajectory of purified bubbles, etc.
Active Publication Date: 2022-02-11
HARBIN UNIV OF SCI & TECH
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Problems solved by technology
[0005] The present invention aims at the defect that the existing motion model lacks theoretical basis in the composite field of ultrasonic and swirl field, and cannot obtain the movement trajectory of the purified bubbles, and provides a theoretical support for the motion model in the ultrasonic and swirl field, Purification bubble transient motion model construction method capable of obtaining the purification bubble movement trajectory at any time
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Embodiment 1
[0116] combine figure 1 Illustrate this embodiment. In this embodiment, the construction method of the transient motion model of purified bubbles in the melt under the ultrasonic swirling field of the present invention comprises the following steps:
[0117] Step 1. Before modeling, make the following assumptions: ① The bubbles in the melt remain spherical under the influence of any conditions; The speed in the vertical direction is 0, and the speed in the horizontal direction changes with the change of the rotation rate; ③The interaction between bubbles is not considered; ④The process is in a constant temperature and adiabatic state;
[0118] Step 2. The complete equation of motion for constructing the transient motion model of the purified bubbles in the melt under the ultrasonic and swirling field is:
[0119] Vertically:
[0120]
[0121]
[0122] Radial:
[0123]
[0124] Horizontal:
[0125]
[0126] In formula (36), Derivative of the depth of the purif...
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The invention discloses a method for constructing a transient motion model of purified bubbles in a melt under an ultrasonic and swirling field, which belongs to the field of quality purification of aluminum alloy melts, and specifically relates to a method for constructing a transient motion model of purified bubbles in a melt under an ultrasonic and swirling field. Aiming at the defects of the existing motion models, the present invention provides a method for constructing a transient motion model of the purification bubbles that can provide theoretical support for the motion model in ultrasonic and swirl fields and can obtain the motion trajectory of the purification bubbles at any time. The construction method of the transient motion model of the purified bubbles in the melt under the ultrasonic and swirling field involved in the present invention assumes before modeling: constructing the complete motion equation of the transient motion model of the purified bubbles in the melt under the ultrasonic and swirling field; Purification bubble motion model for simulation analysis. The invention is especially suitable for realizing technical fields such as aerospace, information industry, transportation and the like that require high quality of aluminum alloy components.
Description
technical field [0001] The invention belongs to the field of quality purification of aluminum alloy melts, and in particular relates to a method for constructing transient motion models of purified bubbles in melts under ultrasonic and swirl fields. Background technique [0002] With the rapid development of aerospace, railway transportation and other industries, not only the demand for aluminum alloy related products is increasing, but also the demand for high-quality and high-performance aluminum alloy components is increasing day by day, and high-purity aluminum melt is the key to obtain The basic guarantee of high-performance aluminum alloy castings, if there is no high-quality aluminum alloy melt, once the defect occurs from the beginning, it will stubbornly exist and it is difficult to make up, so it is impossible to obtain high-quality components. At present, the existing aluminum alloy smelting process is carried out under non-vacuum conditions, and there is a proble...
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IPC IPC(8): G06F30/28C22B21/06G06F111/10G06F113/08G06F119/14G06F119/08
CPCC22B21/064G06F30/20
Inventor 高桂丽王傲王明石德全康赢方
Owner HARBIN UNIV OF SCI & TECH