Mathematical Modeling Based on CFD Method of Wind Currents in Combined Working Out of the Olenegorsky Pit in the FlowVision Software Package

2017 ◽  
Vol 10 (1) ◽  
pp. 62 ◽  
Author(s):  
Elena Borisovna Gridina ◽  
Roman Evgenyevich Andreev
Keyword(s):  
Mathematical Modeling ◽  
Software Package ◽  
Cfd Method ◽  
Wind Currents ◽  
Working Out

scholarly journals RESEARCH OF INFLUENCE OF AIR TEMPERATURE ON THE LEVEL OF NITROGEN OXIDES IN SMOKE GASES OF BOILER PLANTS

2019 ◽  
Vol 9 (4) ◽  
pp. 27-32
Author(s):  
Olga A. BALANDINA ◽  
Svetlana M. PURING
Keyword(s):  
Mathematical Modeling ◽  
Nitric Oxide ◽  
Nitrogen Oxides ◽  
Flue Gas ◽  
Software Package ◽  
Flame Temperature ◽  
Combustion Process ◽  
Flue Gases ◽  
Oxidizing Agent ◽  
Mixture Formation

The analysis of the values of the concentrations of the formed nitrogen oxides and the temperatures of the jet plume under various conditions of mixture formation is carried out. The plots of the distribution of torch temperatures and concentrations of nitric oxide in the calculated area for oxidizer temperatures of 20, 60, 100, 150, and 200 ° C were obtained and analyzed. Mathematical modeling of the gaseous fuel combustion process was carried out using the FlowVision software package. An analysis of the results showed that a decrease in the temperature of the air supplied as an oxidizing agent leads to a significant decrease in the concentration of nitrogen oxides in flue gases, while not significantly affecting the change in the flame temperature. The research results can be used to solve the problems of optimizing boiler plants, in order to reduce harmful flue gas emissions. Further modeling is planned to determine the dependence of the influence of various factors on the degree of formation of nitrogen oxides in the flue gases of boiler plants.

scholarly journals MODELING OF WASTEWATER TREATMENT

2021 ◽  
Author(s):  
Yu.S. Chirikanova ◽  
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
Wastewater Treatment ◽  
Activated Sludge ◽  
Water Purification ◽  
Software Package ◽  
Biological Treatment ◽  
Aeration Tank ◽  
Biological Wastewater Treatment ◽  
Biological Treatment System

The paper deals with the problem of mathematical modeling of biological wastewater treatment. The peculiarity of the biological treatment system is that a block with activated sludge, called an aeration tank, is used for water purification. To describe the process of biological wastewater treatment in aeration tanksa mathematical model developed in the GPS-X software package is proposed.

scholarly journals APPROXIMATION OF THE WORKSPACE OF PARALLEL AND SERIAL STRUC-TURE MANIPULATORS AS PART OF THE MULTI-ROBOT SYSTEM

2019 ◽  
pp. 121-128 ◽  
Author(s):  
Л. Рыбак ◽  
L. Rybak ◽  
Д.И. Малышев ◽  
D.I. Malyshev ◽  
Л. Бехера ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Software Package ◽  
Robotic System ◽  
Geometric Parameters ◽  
Parallel Structure ◽  
Robot System ◽  
C Language ◽  
Computational Problem ◽  
Different Dimensions ◽  
Selection Of

The article describes the application of optimization algorithms for solving the problem of determining the workspace of robots as a serial and parallel structure based on the tripod. The method of approximating the set of solutions of nonlinear inequalities system describing constraints on the geometric parameters of the robot and based on the concept of non-uniform coverings is considered. The internal approximations defined as a set of parallelepipeds are obtained on the basis of the method. The influence of various geometric parameters on the volume of the workspace of the robot is analyzed. To approximate the workspace, the developed algorithm and its modifications with different dimensions of parallelepipeds and approaches to the transfer of constraints from the space of input to the space of output coordinates due to the complexity of the computational problem are used. A software package in the C ++ language is developed to implement the algorithms. The results of mathematical modeling are presented. Various dimensions of the grid to calculate the functions, as well as the accuracy of the approximation are experimentally conducted. The obtained results can be used in the selection of geometric parameters of robots, which determine their limitations when moving as part of a multi-robotic system.

Mathematical Modeling and Optimization of Fluidized Layer Carbonitriding Process for 1C 25 Steel

2017 ◽  
Vol 1143 ◽  
pp. 180-187
Author(s):  
Marian Iulian Neacsu ◽  
Sorin Dobrovici
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
Software Package ◽  
Order Equation ◽  
Graphical Interface ◽  
Technological Parameters ◽  
Fluidized Layer ◽  
The Mathematical Model ◽  
Hardness Values ◽  
Temperature Depth

This paper presents the experiment-based mathematical modelling of fluidized bed carbonitriding process for 1C 25 steel meant to optimize this type of thermochemical processing.Based on experimental results, the mathematical model was developed, which is a second order equation with three unknown terms (parameters): temperature, depth of carbonitrided layer, the percentage of ammonia.The mathematical model allowed the simulation of the fluidized layer carbonitriding process according to its parameters and the thermal energy optimization for obtaining HV hardness values in the range 300-400 MPa.Using the software package Matlab a graphical interface was done, through which all the combinations of technological parameters of the carbonitriding process are determined, leading to obtaining values of microhardness between 300 and 400 MPa, as well as the amount of energy consumed for each variant. The variant consuming the lowest energy is considered optimal.

scholarly journals Mathematical modeling of low-frequency diagnostic vibration-acoustic vibrations of linear-extended energy objects of housing and communal services

2020 ◽  
Vol 216 ◽  
pp. 01076
Author(s):  
V.E. Zakharova ◽  
S.O. Gaponenko ◽  
A.O. Fedotova
Keyword(s):  
Mathematical Modeling ◽  
Modal Analysis ◽  
Software Package ◽  
Lateral Pressure ◽  
Low Frequency ◽  
Acoustic Vibrations ◽  
Ansys Software ◽  
Natural Vibrations ◽  
Polyethylene Pipes

A modal analysis of natural vibrations of polyethylene pipelines is proposed, which is a calculation of the vertical and lateral pressure exerted by the soil on the pipelines, on the basis of which the study of vibrations in the ANSYS software package was carried out. The results of modal analysis are presented for polyethylene pipes with a layout with inclined walls and various soils.

scholarly journals SIMULATION AND MATHEMATICAL MODELING OF AUTOMOBILE TRAFFIC BY MEANS OF ANYLOGIC AND STATISTICA

2021 ◽  
Author(s):  
Anton Holkin ◽  
Aleksandr Pavlov
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
Simulation Model ◽  
Simulation Modeling ◽  
Software Package ◽  
Simulation Experiment ◽  
Model Optimization ◽  
Road Section ◽  
The City

This article describes a simulation model of a road section in the city of Kazan, created using the AnyLogic simulation modeling system. The process of creating a simulation model, optimization by AnyLogic SIM tools is described, a mathematical model of the flow of cars is constructed based on the results of a simulation experiment using the STATISTICA 10 software package.

Method for the Determining Metal Mechanical Characteristics Using FEM

2021 ◽  
Vol 316 ◽  
pp. 917-922
Author(s):  
Irina Volokitina ◽  
Evgeniy Panin ◽  
Kanat Tolubaev
Keyword(s):  
Mathematical Modeling ◽  
Finite Element Method ◽  
Finite Element ◽  
Tensile Strength ◽  
Software Package ◽  
Mechanical Characteristics ◽  
Real Data ◽  
Micro Hardness ◽  
The Finite Element Method ◽  
Very High

In this paper the methods of mechanical testing of metal and the possibility of their implementation, using mathematical modeling by the finite element method in Deform software package, are considered. As the studied parameters, both the strength indicators (yield strength, tensile strength, Brinel micro-hardness), and the plasticity indicator (the number of kinks before the crack is formed), were studied. The values obtained in the simulation have a very high convergence with the real data.

MODELING OF FAILURES OF THE ELECTRICITY SYSTEM (SES) AC LONG-HAUL PASSENGER PLANE IN THE SOFTWARE PACKAGE SIMINTECH

2019 ◽  
Vol 6 (2) ◽  
pp. 63-70
Author(s):  
Denis lgorevich Smagin ◽  
Konstantin lgorevich Starostin ◽  
Roman Sergeevich Savelyev ◽  
Anatoly Anatolyevich Satin ◽  
Alexey Andreevich Pritulkin ◽  
...  
Keyword(s):  
Mathematical Modeling ◽  
Mathematical Model ◽  
Power Supply ◽  
Software Package ◽  
Power Supply System ◽  
Alternating Current ◽  
Supply System ◽  
Electricity System ◽  
Passenger Aircraft

The application of mathematical model of power supply system of perspective long-haul passenger aircraft for the analysis of failure situations is Considered. The results of modeling of failure situations (only failures of generators are considered) for the system of generation and distribution of alternating current are given, the features of mathematical modeling of the power supply system are shown.

DEVELOPMENT OF SOFTWARE FOR CALCULATION AND MATHEMATICAL MODELING OF THE FLOW PARTS OF TURBOJET ENGINE

2019 ◽  
Vol 6 (2) ◽  
pp. 53-56
Author(s):  
Sergey Alexandrovich Gusarov ◽  
Vladimir Nikolaevich Karasev ◽  
Yuri Alexandrovich Kostikov ◽  
Yuri Alexandrovich Rzhavin ◽  
Aleksandr Mikhailovich Romanenkov
Keyword(s):  
Mathematical Modeling ◽  
Fuel Consumption ◽  
Software Package ◽  
Aircraft Engine ◽  
Modular Architecture ◽  
Air Jet ◽  
Turbojet Engine ◽  
Flow Part ◽  
User Friendly

To date, the turbojet dual-circuit engine (turbojet) is the most common air-jet aircraft engine due to low fuel consumption and a number of other advantages. The purpose of this work is to develop a software package for calculating the parameters of the flow part of the turbojet with an intuitive and user-friendly modern interface that allows further expansion of the functionality due to the modular architecture. The developed software package is allowed to raise the process of designing the flow part of the turbojet to a higher level, thereby reducing not only the time of its development, but also the costs.

Sign in / Sign up

Export Citation Format

Share Document