ИНФОРМАТИКА, ВЫЧИСЛИТЕЛЬНАЯ ТЕХНИКА И УПРАВЛЕНИЕ
МОДЕЛЬ ОЦЕНКИ ЭФФЕКТИВНОСТИ РЕШЕНИЯ ЗАДАЧ
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MODEL OF EFFECTIVENESS ASSESSMENT OF THE TASKS SOLUTION OF MANAGEMENT
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ИСПОЛЬЗОВАНИЕ ПРОГРАММНО-ТЕХНИЧЕСКОГО КОМПЛЕКСА
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LABORATORY PRACTICUM PERFORMANCE IN ELECTRICAL ENGINEERING AND PHYSICS
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ОПИСАНИЕ СКОРОСТЕЙ ДВИЖЕНИЯ ВОЗДУШНОГО ПОТОКА ВНУТРИ МЯГКОЙ ОБОЛОЧКИМ. В. Бырдина, М. Ф. Мицик, Л. А. БекмурзаевИнститут сферы обслуживания и предпринимательства (филиал) ДГТУ в г. Шахты,
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DESCRIPTION OF AIR FLOW VELOCITIES INSIDE THE SOFT SHELLM. V. Byrdina, M. F. Mitsik, L. A. BekmurzaevInstitute of service and entrepreneurship (branch) of DSTU in Shakhty, Rostov region, Russian FederationWe study the air flow that moves inside a flexible inextensible shell, skirting the human body. To simplify the task, the flow is pumped by a fan into the legs under the shell. Air moves under pressure through the porous material between the human body and the inner surface of the soft shell. Real three-dimensional airflow is modeled as one-dimensional by averaging the velocities in each section perpendicular to the axis of the human body. Navier-Stokes equations for viscous gas are used to describe the law of air flow motion. The gas is considered as ideal taking into account the continuity equations and the Bernoulli equation for the com-pressible gas. The obtained dependence of the air flow velocity distribution was compared with the experimental values of the averaged velocities in each section perpendicular to the cylinder axis. The mismatch of averaged velocities in theory and experi-ment does not exceed 10 %. Keywords:soft shell, air flow, compressible viscous gas, velocity calculation, experimental studies. |
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