Physical and mathematical modeling of the moving the raw cotton between directing wall and area ginning seeds

In article are brought algorithm and results brought numerically-experimental studies on qualitative and quantitative estimation of the law of the moving the raw cotton from directing walls outgoing between spiked-drum and netlike surface feeder aside worker of the camera ginning machines. It is known that the uniform supply of raw cotton to the ginning process has a direct impact on the efficiency of the ginning process. In the process of ginning, the cotton is cleaned on the surface of the pile drum and net of the supplier, and the crushed gin comes to the working chamber through the gin. As a result of the rotation of the saw cylinder in the working chamber, the cotton fiber is suspended and the rotation is started. As a result of the circular motion of the raw cotton, a raw material roller is formed. In this process, the actual problem is to ensure that the raw cotton consists of small pieces and is uniform in time and width of the equipment. The Comparison got given on calculation shows that increase the corner will bring about increase the growing forming displacement. Increase of this corner will bring the leaflet of the raw cotton about increase of length free moving.

Physical and mathematical modeling of cleaning fibrous material from coarse-grained litter

The article provides a recommended scheme and principle of operation of the cleaner of fibrous material from large litter. The results of theoretical studies to determine the laws of motion and the recommended parameters of the working bodies of the cleaning machine are presented. The results of comparative production tests of a fibrous material cleaner from large litter are given. Substantiated the receipt of parameters and modes of operation of the working bodies of the cleaner of fibrous material, in particular cotton.

Physical and Mathematical Modeling of the Interaction of Water Droplets and High-Speed Gas Flow

Present work is devoted to physical and mathematical modeling of the secondary disintegration of a liquid jet and gas-dynamic breakup of droplets in high-speed air flows. In this work the analysis of the experiments of water droplet breakup in the supersonic flow with Mach numbers up to M = 3 was carried out. The influence of shock wave presence in the flow on the intensity of droplets gas-dynamic breakup is shown. A developed empirical model is presented. It allows to predict the distribution of droplet diameters and velocities depending on the gas flow conditions, as well as the physical properties of the liquid. The effect of the Weber and Reynolds numbers on the rate of droplets gas-dynamic breakup at various Mach numbers is shown. The obtained data can be useful in the development of mathematical models for the numerical simulation of two-phase flows in the combined Lagrange-Euler formulation.

MULTI-SCALE MODELING AND METHODS OF DATA SCIENCE IN PROBLEMS OF MICROELECTRONICS

The report is devoted to the problem of integrating multiscale modeling and data analysis methods to create predictive models based on approaches based on theoretical physical and mathematical modeling using the mathematical apparatus of data analysis.