Mathematical modeling of transition processes due to a change in gas consumption at the ends of the inclined section of the gas pipeline

Khujaev, I.; Shodmonova, G; Mamadaliyev, X; Aminov, Xayotjon

doi:10.1088/1757-899x/896/1/012046

Cited by 4 publications

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Numerical study of axisymmetrical transsonic impact based on the SST turbulence model

Madaliev,

Mirzaev

et al. 2024

BIO Web Conf.

View full text Add to dashboard Cite

This study presents a comprehensive numerical simulation of the aerodynamic behavior of an axisymmetric model featuring a spherical convex radome at transonic Mach numbers, employing the Comsol Multiphysics software package for advanced computational analysis. The primary focus is on the shock wave dynamics that develop at the upper section of the spherical convex fairing, a critical aspect for understanding the aerodynamic performance and stability of aerospace vehicles. By simulating various conditions, the study seeks to capture the intricate interactions between the incoming airflow and the radome structure, which are crucial for optimizing design parameters. The numerical results obtained are rigorously compared with experimental data from the research conducted by Bachalo and Johnson, illustrating a close alignment that reinforces the accuracy and reliability of the numerical calculations. These simulations utilize the Shear Stress Transport (SST) turbulence model, which is adept at handling complex flow features, further validating the significance of these findings for future aerospace applications.

show abstract

Numerical study of axisymmetrical transsonic impact based on the SST turbulence model

Madaliev,

Mirzaev

et al. 2024

BIO Web Conf.

View full text Add to dashboard Cite

show abstract

Numerical study of the transition zone between laminar and turbulent flows for the flow plate problem

Madaliev,

Abdujalilova,

Tоjiyev

et al. 2024

BIO Web Conf.

View full text Add to dashboard Cite

In this study, we conducted a comprehensive numerical investigation of the transition region between laminar and turbulent flows in the context of flow around a flat plate. Utilizing advanced computational techniques, we employed both the standard SST (Shear Stress Transport) turbulence model and the transient SST turbulence model available in the COMSOL Multiphysics software package to accurately capture the nuances of flow behavior. By leveraging modern numerical methods, we were able to analyze the dynamics of the transition more effectively, providing a detailed and precise characterization of the flow’s transition characteristics. The findings from this research are significant as they enhance our understanding of the underlying physical processes that govern the transition zone. Additionally, these results hold potential implications for the development of innovative technologies within the fields of hydrodynamics and aerodynamics, where optimized flow behavior is critical for improving efficiency and performance in various applications. Overall, this study contributes valuable insights into the complex interactions that occur within transitional flow regimes.

show abstract

Numerical method for solving the problem of the gas-dynamic state of a main gas pipeline section relief of a variable cross-sectional area

Bazarov

Khujaev

Mamadaliev

et al. 2021

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

The paper proposes a numerical method for solving the problem of the gas-dynamic state of a main gas pipeline linear section, which is characterized by a path change in the diameter and leveling height of the pipeline axis. The quasi-one-dimensional equations of gas pipeline transport are derived with account for the local and convective components of the inertia force, the quadratic law of resistance and the force of gravity at a variable cross-sectional area of the pipeline. At the inlet to the section, a time change in hydrostatic pressure is set, and at the outlet from the section a mass rate of gas flow is set. The initial distribution of gas-dynamic indices was taken for a stationary mode of operation. The equations were transformed to the equations of direct and reverse traveling waves presented in dimensionless variables, and approximated by an implicit scheme, taking into account the direction of excitation propagation. The iterative processes were formed by virtue of the nonlinearity of equations and boundary conditions, A calculation program was developed that allowed studying the process dynamics depending on the time change in the inlet pressure and the outlet mass flow rate under a path change in the diameter and leveling height of the pipeline axis. The results of separate calculations on transient processes were presented, when, at the section outlet the mass flow rate increases abruptly, and the pipe diameter has a local increase according to a sinusoidal law.

show abstract

Mathematical modeling of transition processes due to a change in gas consumption at the ends of the inclined section of the gas pipeline

Cited by 4 publications

References 14 publications

Numerical study of axisymmetrical transsonic impact based on the SST turbulence model

Numerical study of axisymmetrical transsonic impact based on the SST turbulence model

Numerical study of the transition zone between laminar and turbulent flows for the flow plate problem

Numerical method for solving the problem of the gas-dynamic state of a main gas pipeline section relief of a variable cross-sectional area

Contact Info

Product

Resources

About