Impact of the Intake Vortex on the Stability of the Turbine Jet Engine Intake System

Kozakiewicz, Adam; Frant, Michał; Majcher, Maciej

doi:10.15866/irease.v14i4.20223

Cited by 4 publications

(3 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, the calculated results should be compared with measurements conducted experimentally (for instance in a wind tunnel) to validate the CFD models. Depending on the specific case, this comparison may be related to the qualitative aspects of airflow (for example, the investigation of streamlines or particle tracks around the physical and virtual model as presented by Kozakiewicz A. et al [21]), flow quantities like the aerodynamic coefficients or pressure field [22], or both aspects mentioned above. Comprehensive experimental and numerical studies on the aerodynamic characteristics of UAVs have been described by Frant M. [23].…”

Section: Introductionmentioning

confidence: 99%

Gust Modeling with State-of-the-Art Computational Fluid Dynamics (CFD) Software and Its Influence on the Aerodynamic Characteristics of an Unmanned Aerial Vehicle

Frant,

Kachel,

Maślanka

2023

Energies

View full text Add to dashboard Cite

The aim of this article is to propose methods for obtaining the aerodynamic characteristics of a flying object in a turbulent atmosphere. This article presents static aerodynamic characteristics of an unmanned aerial vehicle (UAV), which have been obtained during experimental examinations and during numerical calculations. The results have been compared with each other in order to validate the numerical model and methods. The method for modeling gusts using state-of-the-art CFD software (i.e., ANSYS Fluent Release 16.2) has been proposed and applied to obtain the aerodynamic characteristics of a UAV including during gusts. Two cases have been analyzed. In the first case, a downburst was modeled. In the second case, a single oblique gust was modeled (i.e., changing the angle of attack and the angle of sideslip), that had a complicated time course in regard to its velocity. Although this article is focused on the assessment of the vulnerability of a UAV model to gusts, the practical implications of the proposed methodology are applicable to a wide selection of objects, including wind turbines.

show abstract

Section: Introductionmentioning

confidence: 99%

Gust Modeling with State-of-the-Art Computational Fluid Dynamics (CFD) Software and Its Influence on the Aerodynamic Characteristics of an Unmanned Aerial Vehicle

Frant,

Kachel,

Maślanka

2023

Energies

View full text Add to dashboard Cite

show abstract

“…The numerical results have been compared to experimental data from the report [6]. Flow simulations have been carried out in Ansys Fluent software by solving RANS equations, a method used successfully to solve various aerodynamics problems in [25] to [29].…”

Section: Introductionmentioning

confidence: 99%

Preliminary Numerical Study of a Rectilinear Blade Cascade Flow for a Determination of Aerodynamic Characteristics

Majcher,

Frant,

Kieszek

2023

IREASE

View full text Add to dashboard Cite

In the design process of blade arrangements in axial flow machines, it is extremely important to have the aerodynamic characteristics of the airfoils in a rectilinear blade cascade arrangement. However, the source of these characteristics is often difficult to access. This paper presents a methodology for the numerical determination of the characteristics of the lift coefficient, drag coefficient and flow turning angle of the airflow as a function of the angle of attack, by using the example of a blade cascade formed by NACA 65-010 airfoils for the flow intake angle β1=30° and the cascade solidity σ=1. A numerical analysis of the impact of the numerical mesh parameters and the applied turbulence model on the obtained values of the lift coefficient, drag coefficient and flow turning angle of the airfoil in a rectilinear blade cascade has been performed. The numerical values obtained have been compared to experimental results. In this respect, satisfactory agreement has been obtained between experimental and numerical results, confirming the feasibility of numerical determination of the aerodynamic characteristics of airfoils in a rectilinear blade cascade.

show abstract

“…Kozakiewicz et al performed a study on the impact of the intake vortex on the stability of the turbine jet engine intake system. The article presents a numerical analysis of the intake system of a turbine jet engine in terms of parameter stability along its duct, following the occurrence of an intake vortex [16].…”

Section: Introductionmentioning

confidence: 99%

A Study on Design of S-Duct Structures and Air Intake for Small Aircraft Applied to High Strength Carbon–Epoxy Composite Materials

Lim

Choi²,

Park

2022

Materials

View full text Add to dashboard Cite

Recently, many structural parts using composite materials are being applied to small aircraft and UAV in the world. The aim of this work is to design the engine intake structure of a small aircraft. For structural safety evaluation, a finite element analysis method was applied. In this work, structural design and numerical analysis of air intake and s-duct structures for small aircraft were performed. The target structure is composed of an s-duct and a cylindrical intake structure. Firstly, an investigation of the mechanical properties of carbon/epoxy material was conducted. The distributed pressure load and acceleration condition was applied to the structural design. The structural design load was investigated considering safety factors. The structural analysis was performed to analyze the validity of the design results. Through the structural analysis using the finite element analysis method, it was confirmed that the designed air intake structure is safe. The manufacturing of the prototype structure will be carried out based on the designed result.

show abstract

Impact of the Intake Vortex on the Stability of the Turbine Jet Engine Intake System

Cited by 4 publications

References 13 publications

Gust Modeling with State-of-the-Art Computational Fluid Dynamics (CFD) Software and Its Influence on the Aerodynamic Characteristics of an Unmanned Aerial Vehicle

Gust Modeling with State-of-the-Art Computational Fluid Dynamics (CFD) Software and Its Influence on the Aerodynamic Characteristics of an Unmanned Aerial Vehicle

Preliminary Numerical Study of a Rectilinear Blade Cascade Flow for a Determination of Aerodynamic Characteristics

A Study on Design of S-Duct Structures and Air Intake for Small Aircraft Applied to High Strength Carbon–Epoxy Composite Materials

Contact Info

Product

Resources

About