Results 11 to 20 of about 2,211,858 (267)

A High-Order Discontinuous Galerkin Method for Solving Preconditioned Euler Equations

Applied Sciences, 2022
A high-order discontinuous Galerkin (DG) method is presented for solving the preconditioned Euler equations with an explicit or implicit time marching scheme.
Huanqin Gao, Jiale Zhang, Hongquan Chen, Shengguan Xu, Xuesong Jia   +4 more
doaj   +1 more source

GPU-Accelerated Infill Criterion for Multi-Objective Efficient Global Optimization Algorithm and Its Applications

Applied Sciences, 2022
In this work, a novel multi-objective efficient global optimization (EGO) algorithm, namely GMOEGO, is presented by proposing an approach of available threads’ multi-objective infill criterion.
Shengguan Xu, Jiale Zhang, Hongquan Chen, Yisheng Gao, Yunkun Gao, Huanqin Gao, Xuesong Jia   +6 more
doaj   +1 more source

An Optimized Pressure-Based Method for Thrust Vectoring Angle Estimation

Aerospace, 2023
This research developed a pressure-based thrust vectoring angle estimation method for fluidic thrust vectoring nozzles. This method can accurately estimate the real-time in-flight thrust vectoring angle using only wall pressure information on the inner ...
Nanxing Shi, Yunsong Gu, Tingting Wu, Yuhang Zhou, Yi Wang, Shuai Deng   +5 more
doaj   +1 more source

Ultrasound Flow-Monitoring and Flow-Metering of Air–Oil–Water Three-Layer Pipe Flows

IEEE Access, 2017
The combined use of ultrasound pulse-echo intensity and Doppler shift frequency is examined as a means to measure strong unsteady three-phase pipe flows of a gas and two liquids.
Junpei Hitomi, Yuichi Murai, Hyun Jin Park, Yuji Tasaka   +3 more
doaj   +1 more source

Comparative Study of Dynamic Stall between an Aircraft Airfoil and a Wind Turbine Airfoil in an Air–Particle Flow

Applied Sciences, 2021
Dynamic stall in clean air flow has been well studied, but its exploration in air–particle (air–raindrop or air–sand) flow is still lacking. The aerodynamic performance loss of aircraft (NACA0012) and wind turbine (S809) airfoils and their differences ...
Junjun Jin, Zhiliang Lu, Tongqing Guo, Di Zhou, Qiaozhong Li   +4 more
doaj   +1 more source

Active flutter suppression for a flexible wing model with trailing-edge circulation control via reinforcement learning

AIP Advances, 2023
Previous attempts at active flutter suppression have been based on driving the deflection of multiple pairs of discontinuous mechanical control surfaces.
Zhen Chen, Zhiwei Shi, Sinuo Chen, Shengxiang Tong, Yizhang Dong   +4 more
doaj   +1 more source

Influence of Flow-induced Vibration of a D-VAWT With and Without Leading-edge Rod at Various Pitch Angles [PDF]

Journal of Applied Fluid Mechanics
Under specific incoming wind speeds, Darrieus- Vertical Axis Wind Turbines (D-VAWT) have been found to display significant amplitude vibrations. Previous studies mainly examined the D-VAWT's aerodynamics, ignoring flow-induced vibration (FIV).
C. B. Maheshwaran, E. Karthik Vel, S. Nadaraja Pillai   +2 more
doaj   +1 more source

Marking function of Stokes number on airfoils’ aerodynamic penalties in a gas–solid flow

IET Renewable Power Generation, 2021
This paper aims to employ the Stokes number to mark aerodynamic penalties of airfoils caused by particles, which is crucial to implement their scaling experiments in a gas‐solid flow.
Junjun Jin, Zhiliang Lu, Tongqing Guo, Di Zhou, Qiaozhong Li   +4 more
doaj   +1 more source

Numerical Research on the NS-SDBD Control of a Hypersonic Inlet in Off-Design Mode

Aerospace, 2022
The overall performance of a scramjet inlet will decline while entering off-design mode. Active flow control using nanosecond surface dielectric barrier discharge (NS-SDBD) can be a novel solution to such inlet–unstart problems.
Yilun Yan, Jiangfeng Wang
doaj   +1 more source

Bubble clustering in turbulent boundary layer on a moving wall utilizing belt-driven system

Journal of Fluid Science and Technology
For simulating the behavior of air bubbles injected into the turbulent boundary layer developed beneath the bottom of a ship, we propose a novel experimental system for a different driving force on flow from the bulk pressure gradient.
Yasufumi HORIMOTO, Itsuki MORI, Hyun Jin PARK, Yuji TASAKA, Yuichi MURAI   +4 more
doaj   +1 more source