All articles - Operations Research and Management Science
Number of articles: 2
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Technology for creating a device for laminar flow of water in pipesThe article discusses the mathematical modeling of the movement of viscous incompressible fluids through a bundle of tubes located inside the outer pipe. The laminar and turbulent modes of this movement are considered, and the physical meaning of their occurrence is also analyzed. The fluid flow through n tubes of length L and radius r located inside the outer tube is considered. Calculation formulas are derived for calculating the maximum velocity of this flow, the volume of fluid passing through the cross section of the tube, the coefficient of resistance to friction in the tube along the length of the flow, and also the maximum value of the tangential stress. The results of the study of the relationship of the coefficient of resistance to friction in the tube with the Reynolds number are presented. A description is given of a device created according to the results of a study that brings the disordered flow of liquids into a laminar state
Scientific research results in pandemic conditions (COVID-19) -
Proper organization and management of the traffic flow in the world are one the topical issues. Much attention has been paid to scientific research in this direction in recent years. In particular, this is the improvement of transport infrastructure, an increase in the capacity of street networks and intersections, ensuring the safety of road users, and traffic flow management based on modern intelligent transport systems. In this article, through an integrated approach to the management of traffic flows in cities, management methods were analyzed depending on the speed of movement and the characteristics of traffic flows.
