- 1. Mathematical model for heat transfer during underground coal gasification process
- (Content №5 2024)
- ... consists of parabolic heat-transfer equations, the Stefan condition at the phase transition boundary, and the Dirichlet boundary conditions, has been constructed. As a result of solving the boundary-value ...
- Created on 29 October 2024
- 2. CFD-modeling of critical deviations of combustion processes in pulverized coal boilers. Part 1. Construction of the TPP-210A boiler calculation model
- (Content №2 2024)
- ... of a high-concentration dust pipe under rarefaction to the central air channel. For the first time, the distribution of thermal resistances has been applied as boundary conditions on the walls of the fuel ...
- Created on 01 May 2024
- 3. Heat exchange under the longitudinal movement of wet steam in finning heat exchangers
- (Content №1 2024)
- ... Luo, K., Changxiao, S., Haiou, W., Fan, J., & Fan, J. (2019). Interface-resolved detailed numerical simulation of evaporating two-phase flows with robin boundary conditions on irregular domains. International ...
- Created on 29 February 2024
- 4. Mathematical models for determining and analyzing thermal regimes in mining industry mechanism structures
- (Content №6 2023)
- ... of heat conduction with appropriate boundary conditions. Findings. Quadratic equations are obtained to determine the analytical solutions of linear and nonlinear boundary problems of heat conduction ...
- Created on 23 December 2023
- 5. Features of modernization of a truck with a hybrid power transmission
- (Content №1 2023)
- ... the elements are described, and the boundary conditions are formed. A combined series-parallel hybrid drive scheme has been used, as it has a higher efficiency compared to parallel and series ones. When ...
- Created on 25 February 2023
- 6. Pressure distribution in the oil reservoir in a two-dimensional plane
- (Content №1 2023)
- ... reservoir under varying boundary conditions. Practical value. A mathematical model of pressure distribution processes along the angle of inclination is proposed, which allows determining the effectiveness ...
- Created on 25 February 2023
- 7. Computer modeling of territory flooding in the event of an emergency at Seredniodniprovska Hydroelectric Power Plant
- (Content №6 2022)
- Authors: D.V.Ivanov, orcid.org/0000-0001-8660-0928, Dnipro University of Technology, Dnipro, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. V.V.Hnatushenko*, orcid.org/0000-0003-3140-3788, Dnipro University of Technology, ...
- Created on 25 December 2022
- 8. A method to evaluate the performance of an open loop geothermal system for mine water heat recovery
- (Content №1 2022)
- ... inflows into underground mine workings under the influence of external boundary conditions in the development of coal deposits. Bulletin of the Tomsk Polytechnic University. Engineering of georesources, ...
- Created on 25 February 2022
- 9. Dynamic analysis of thin laminated viscoelastic structures under elevated temperature using finite element modeling
- (Content №6 2020)
- ... the effect of elevated temperature on interlaminar stresses for different laminated viscoelastic structures and boundary conditions. Each structure considered consists of three laminated layers, where ...
- Created on 22 December 2020
- 10. Methods for determining the efficiency of the grinding process
- (Contens №5 2020)
- ... the grinding efficiency index with an oriented tool, where stability acts as an objective function, is proposed. Productivity is a balance condition, and surface roughness determines the boundary condition. ...
- Created on 30 October 2020
- 11. Simulation of heat transfer process in a multilateral cylindrical shell taking into account the internal heat sources
- (Contens №3 2020)
- ... the required number of members of the series to obtain the specified accuracy. Changing the third-order boundary conditions to any other boundary conditions does not cause any significant difficulty in ...
- Created on 02 July 2020
- 12. Asymptotic method in two-dimensional problems of electroelasticity
- (Content №1 2020)
- ... sequences lead to the fact that in each approximation the main functions are sought from the Laplace or Poisson equations. Auxiliary ones are found by integration. The analysis of the boundary conditions ...
- Created on 10 March 2020
- 13. Prediction of transient processes in oil pipelines with the purpose of emergency incident prevention
- (Content №1 2020)
- ... of the boundary conditions at the point of origin of leakage for their implementation in the analytical solution of the transient process model in a hypothetical main oil pipeline. Practical value. According ...
- Created on 10 March 2020
- 14. Two-dimensional elastic theory methods for describing the stress state and the modes of elastic boring
- (Content №1 2020)
- ... holomorphic functions in the form polynomial of the nth order in accordance with degrees of the complex variables, corresponding boundary conditions are formulated for basic solutions and integral conditions ...
- Created on 10 March 2020
- 15. Thermodynamic aspect of rock destruction
- (Content №1 2020)
- ... impedance boundary condition: Formula for the velocity, existence and uniqueness. European Journal of Mechanics – A/Solids, 61, 180-185. https://doi.org/10.1016/j.euromechsol.2016.09.011. 19. Mashchenko, V. A., ...
- Created on 10 March 2020
- 16. Mathematical model of heat processes in terms of gas-saturated rock breaking by means of shearers and tunneling machines
- (Content №1 2020)
- ... V. А., Kudinov, I. V., & Skvortsova, М. P. (2015). Generalized functions and additional boundary conditions in the problems of heat conductivity for multilayered bodies. Journal of computational mathematics ...
- Created on 10 March 2020
- 17. Energy optimization of a hoisting engine acceleration
- (Power Supply Technologies)
- ... the specified boundary conditions were used. They allowed reducing the undesirable dynamic indicators of the mine winder significantly. The obtained approximate (quasi-optimal) solutions to the variational ...
- Created on 26 October 2019
- 18. Determination of stress in composite plates with cracks on the basis of the method of integral equations and solutions by Green
- (Geotechnical and mining mechanical engineering, machine building)
- ... equations. The kernel of the equations were constructed on Green’s solutions, which makes it possible to satisfy automatically the boundary conditions on the given contours. Green’s solutions were presented ...
- Created on 26 October 2019
- 19. Determination of temperature field in thermally sensitive layered medium with inclusions
- (Geotechnical and mining mechanical engineering, machine building)
- ... heat conduction with discontinuous coefficients under the given boundary conditions at the boundary surfaces of the medium. Findings. The heat flux is concentrated at one of the boundary surfaces ...
- Created on 03 March 2019
- 20. Large deformations of the casing string under its own weight in the curvilinear well
- (Geotechnical and mining mechanical engineering, machine building)
- ... arbitrary arrangement of supports and boundary conditions in their intersections. Originality. The solution of the governing differential equation of angular deformations of a long bar is found ...
- Created on 26 December 2018