Results 31 to 40 of about 286,563 (197)

Numerical Analysis of Aerodynamics and Flight Trajectory of JAXA's High-Mach Integrated Control Experiment (HIMICO)

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES AEROSPACE TECHNOLOGY JAPAN, 2020
The aerodynamic characteristics of a small-size hypersonic experimental aircraft called HIMICO are numerically simulated using CFD. A wide range of angles of attack and side-slip angles in Mach-5 flows are investigated, and the results are compared with ...
Akifumi Sakai, K. Miyaji, Tomonari Hirotani, Tetsuya Sato, T. Tsuchiya, H. Taguchi   +5 more
semanticscholar   +1 more source

Space–time isogeometric analysis of tire aerodynamics with complex tread pattern, road contact, and tire deformation

Computational Mechanics
The space–time (ST) computational method “ST-SI-TC-IGA” and recently-introduced complex-geometry isogeometric analysis (IGA) mesh generation methods have enabled high-fidelity computational analysis of tire aerodynamics with near-actual tire geometry ...
T. Kuraishi, Zhaojing Xu, K. Takizawa, T. Tezduyar, Tsuyoshi Kakegami   +4 more
semanticscholar   +1 more source

Experimental Parameter Identification and an Evaluation of the Impact of Tire Models on the Dynamics of Fixed-Wing Unmanned Aerial Vehicles

Aerospace
Because fixed-wing unmanned aerial vehicles (UAVs) require high-speed taxiing for takeoff and landing, the aircraft’s stability during taxiing is critical.
Hikaru Eguchi, Daisuke Nakata
doaj   +1 more source

State of the Art in the Optimisation of Wind Turbine Performance Using CFD [PDF]

, 2019
Wind energy has received increasing attention in recent years due to its sustainability and geographically wide availability. The efficiency of wind energy utilisation highly depends on the performance of wind turbines, which convert the kinetic energy ...
Haghnegahdar, Mohammad Amin, Kolios, Athanasios, Lander, Martin, Mussetta, Marco, Shourangiz-Haghighi, Alireza, Wang, Lin   +5 more
core   +1 more source

Research on the Dynamics Model and Jump/Drop Control Strategy of Distributed-Propeller Unmanned Aerial Vehicles

Applied Sciences
Compared with conventional drones, distributed powered drones have significant advantages in handling stability characteristics, lift and drag characteristics, and takeoff and landing performance.
Yansheng Geng, Xinxin Chen, Yinglong He, Xiaoping Xu   +3 more
doaj   +1 more source

Dynamic analysis of road vehicle-bridge systems under turbulent wind by means of Finite Element Models [PDF]

, 2011
When an automobile passes over a bridge dynamic effects are produced in vehicle and structure. In addition, the bridge itself moves when exposed to the wind inducing dynamic effects on the vehicle that have to be considered.
Antolin Sanchez, Pablo, Astiz Suárez, Miguel Angel, Goicolea Ruigómez, José María, Oliva Quecedo, Javier   +3 more
core   +1 more source

Investigations on the Turbulent Wake of a Generic Space Launcher Geometry in the Hypersonic Flow Regime [PDF]

, 2011
The turbulent wake flow of generic rocket configurations is investigated experimentally and numerically at a freestream Mach number of 6.0 and a unit Reynolds number of 10 x 10^6.
Glatzer, Christian, Gülhan, Ali, Henckels, Andreas, Meinke, Matthias, Meiß, Jan-Hendrik, Saile, Dominik, Schröder, Wolfgang   +6 more
core  

Unsteady Aerodynamic Interaction Between Rotor and Ground Obstacle [PDF]

, 2018
The mutual aerodynamic interaction between rotor wake and surrounding obstacles is complex, and generates high compensatory workload for pilots, degradation of the handling qualities and performance, and unsteady force on the structure of the obstacles.
Barakos, George N., Green, Richard B., Sun, Yi Ming, Tan, Jian Feng, Zhou, Tian Yi   +4 more
core  

Longitudinal and transversal flow over a cavity containing a second immiscible fluid

, 2012
An analytical solution for the flow field of a shear flow over a rectangular cavity containing a second immiscible fluid is derived. While flow of a single-phase fluid over a cavity is a standard case investigated in fluid dynamics, flow over a cavity ...
Cherepanov, Clarissa Schönecker, Karniadakis, Keldysh, Lauga, Lawrentjew, Muskhelishvili, Muskhelishvili, Navier, Nosonovsky, Smirnow, Sotkilava, Steffen Hardt   +12 more
core   +1 more source

Molecular dynamics of flows in the Knudsen regime [PDF]

, 2000
Novel technological applications often involve fluid flows in the Knudsen regime in which the mean free path is comparable to the system size. We use molecular dynamics simulations to study the transition between the dilute gas and the dense fluid ...
Allen, Bhattacharya, Bhushan, Bitsanis, Cercignani, Cieplak, Ehrfeld, Grest, Hoover, Jayanth R. Bavanar, Joel Koplik, Kennard, Kim (Ed.), Koplik, Koplik, Loose, Marek Cieplak, Marlow (Ed.), Maxwell, Maxwell, Morris, Muntz, Nose, Sugano, Tehver, Thompson   +25 more
core   +3 more sources