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Parametric Research and Aerodynamic Characteristic of a Two-Stage Transonic Compressor for a Turbine Based Combined Cycle Engine

open access: yesAerospace, 2022
This paper researches the parametric optimization of a two-stage transonic compressor having a large air bypass at partial rotating speed according to flow analysis for a turbine-based combined cycle engine (TBCC).
Hengtao Shi
doaj   +3 more sources

Numerical Simulation of Aerodynamic Characteristics of Electric Vehicles with Battery Packs Mounted on Chassis

open access: yesWorld Electric Vehicle Journal, 2023
Aerodynamic characteristics are of great significance to the fuel economy and handling the stability of electric vehicles. The battery pack of electric vehicles has a huge structure and is usually arranged in the chassis area of the vehicle, which ...
Yaoji Deng   +5 more
doaj   +1 more source

Aerodynamic multi-objective optimization on train nose shape using feedforward neural network and sample expansion strategy

open access: yesEngineering Applications of Computational Fluid Mechanics, 2023
Feedforward neural network (FNN) models with strong learning ability and prediction accuracy are crucial for optimization. This paper investigates the effects of the number of training samples and the hidden layers on the accuracy of the FNN model ...
Zhiyuan Dai   +4 more
doaj   +1 more source

Impact of the gap distance between two adjacent external windshields of a high-speed train on surrounding flow characteristics: an IDDES study

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
The external windshield is a key component in high-speed trains for drag reduction. However, the installation gap between external windshields, which is intended for improving curve-passing ability, could lead to strong aerodynamic instability in train ...
Fan Cheng   +4 more
doaj   +1 more source

Computational Aerodynamics Study of Competing Conceptual Designs for Advanced Tactical Fighter Aircraft [PDF]

open access: yesJournal of Aerospace Technology and Management, 2021
Advanced tactical fighter (ATF) configurations are bound to perform high angle of attack (AoA) maneuvers. However, existing conceptual design tools available in aerospace industry are based on empirical or potential flows that cannot predict aerodynamic ...
Waseeq Siddiqui   +5 more
doaj   +2 more sources

Aspect Ratio Effects on the Aerodynamic Performance of a Biomimetic Hummingbird Wing in Flapping

open access: yesBiomimetics, 2023
Hummingbirds are flapping winged creatures with unique flight mechanisms. Their flight pattern is more similar to insects than other birds. Because their flight pattern provides a large lift force at a very small scale, hummingbirds can remain hovering ...
Yilong Min   +3 more
doaj   +1 more source

Effects of Streamwise Sinusoidal Flow on the Aerodynamic Characteristics of a Box Girder

open access: yesApplied Sciences, 2022
This study systematically investigated the aerodynamic characteristics of a closed box girder in sinusoidal oscillating flow fields based on experimental and numerical approaches.
Haohong Li   +3 more
doaj   +1 more source

Effects of Damaged Rotor Blades on the Aerodynamic Behavior and Heat-Transfer Characteristics of High-Pressure Gas Turbines

open access: yesMathematics, 2021
Gas turbines are critical components of combined-cycle power plants because they influence the power output and overall efficiency. However, gas-turbine blades are susceptible to damage when operated under high-pressure, high-temperature conditions. This
Thanh Dam Mai, Jaiyoung Ryu
doaj   +1 more source

Circulation Control of Airfoil Aerodynamic Force Under Ground Effect of Wavy Wall

open access: yesShanghai Jiaotong Daxue xuebao, 2022
The interaction of airflow and sea waves seriously affects the flight stability and cruising safety of ground effect vehicles. The influence of different sea states and different angles of attack were analyzed numerically on the aerodynamic ...
LIU Hao, SUN Jianhong, SUN Zhi, TAO Yang, WANG Dechen, LIU Guangyuan
doaj   +1 more source

A comprehensive study of the aerodynamic characteristics of an aspect ratio of 6.25:1 inclined square prism

open access: yesFrontiers in Physics, 2023
Inclined prismatic structures have grown in popularity in civil engineering due to increased architectural and aesthetic demands, leading to a surging need to study their aerodynamic properties.
Zengshun Chen   +10 more
doaj   +1 more source

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