turbulence

A Model for Optimizing State Management of Resource Provision for Military Operations in Wartime

This study develops a scenario-based optimization model for state governance of resource provision for military operations under wartime conditions, explicitly accounting for high external turbulence, binding budget constraints, time pressure, and the risk of failing critical provision standards.  The study proposes a scenario-based and probability-driven analytical framework that ranks governance initiatives by expected effect and risk and selects an optimal portfolio of initiatives under given budget and risk constraints.  Methodologically, external turbulence is mode

IMPROVEMENT OF AIR DISTRIBUTION IN A ROOM WITH SWIRLED AIR JETS

The study examines the velocity decay processes in an isothermal free swirled air jet to improve methods for controlling the aerodynamic characteristics of air flows. The objective is to intensify the velocity decay in the supply air of an isothermal free swirling jet, determine the decay coefficient, and analyze axial velocities by constructing their profiles in cross-sections. To simplify calculations, the velocity decay coefficient “m” is introduced.

High-Fidelity RANS CFD Simulations of Physicochemical Process of Combustion in Gas Turbine Combustion Chambers in ANSYS CFX

This study examines the validation and precision of essential parameters, including temperature distribution and nitrogen oxide (NOx) emissions, at the outlet of a gas turbine combustion chamber through high-fidelity Reynolds-Averaged Navier-Stokes (RANS) CFD simulations.