A5059860874- Aerodynamics and Fluid Dynamics Research
- Aerodynamics and Acoustics in Jet Flows
- Vehicle Noise and Vibration Control
- Fluid Dynamics and Vibration Analysis
- Wind and Air Flow Studies
- Fluid Dynamics and Turbulent Flows
Shanghai University
2022-2025
Shanghai University of Engineering Science
2022
Control of noise generated by flow around cylinders is significant importance in various engineering applications. This paper analyzes the and acoustic fields with square-wave profiles based on computational fluid dynamics, analogy, vortex dynamics theory. To address reduction for cylinders, a hybrid aerodynamic numerical simulation method combining improved delayed detached eddy Ffowcs Williams–Hawkings integral equation employed. Refined simulations characteristics, near-field sound...
Generation of noise caused by the flow around a cylinder and its control are important in various engineering applications. Based on computational fluid dynamics with acoustic analogy vortex theory analysis, this study aims at investigating ability wavy improving aerodynamic performance reducing noise. Noise mechanisms different Reynolds numbers analyzed. The results show that is helpful for reduction average drag coefficient efficient suppressing fluctuation lift coefficient; consequently,...
Efficient prediction and evaluation of noise performance are crucial to the design optimization landing gear noise. A systematic method is developed predict evaluate in present study, termed as spectrum deep learning model (NSDL). In this algorithm, encoder decoder designed extract features reconstruct data. Specifically, a loss function that takes identification both broadband tone into account utilized guide training direction model, aiming improve efficiency results model. Afterward,...
The noise of landing gears is a major contributor to the overall airframe an aircraft during approach and landing. In this paper, novel strut treatment method, termed Longitudinal Wavy Strut (LWS), proposed improve aeroacoustics performances nose gear. simplified complete gear model with wavy are respectively investigated by hybrid combines IDDES FW-H equations. For configuration, four different setups in terms parameter analyzed. three parameters can reduce medium wave height best...