Results 91 to 100 of about 32,156 (309)

Dynamic loads analysis system (DYLOFLEX) summary. Volume 1: Engineering formulation [PDF]

The DYLOFLEX computer program system expands the aeroelastic cycle from that in the FLEXSTAB computer program system to include dynamic loads analyses involving active controls. Two aerodynamic options exist within DYLOFLEX. The analyst can formulate the
Clemmons, R. E., Kroll, R. I., Miller, R. D.   +2 more
core   +1 more source

A new stall-onset criterion for low speed dynamic-stall [PDF]

, 2005
The Beddoes/Leishman dynamic-stall model has become one of the most popular for the provision of unsteady aerofoil data embedded in much larger codes.
Beddoes, Beddoes, Beddoes, Beddoes, Carr, Carr, Daley, Ekaterinaris, F. N. Coton, Gangwani, Johnson, Jones, Leishman, Leishman, Niven, Niven, R. A. McD. Galbraith, Tran, W. Sheng, Wilby, Wilby   +20 more
core   +1 more source

Comparison of modelling approaches for liquid fluidized beds

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study presents a comparison of three promising numerical models for the detailed simulation of liquid–solid fluidized bed. These models differ in their treatment of the solid phase, ranging from treating each particle individually to treating the collection of particles as a continuum.
Andreu Bernad‐Serra, Furkhat Khamitov, Olli H. Sorvari, Ville Alopaeus   +3 more
wiley   +1 more source

Delayed Detached-Eddy Simulations of Aerodynamic Variability During Carrier-Based Aircraft Landing with a Domain Precursor Inflow Method

Journal of Marine Science and Engineering
Flight tests and wind tunnel experiments face difficulties in investigating the impact of aircraft carrier air-wake on the landing process. Meanwhile, numerical methods generally exhibit low overall computational efficiency in solving such problems.
Jiawei Fu, Ruifan Hu, Hong Wang, Ke Xu, Shuling Tian   +4 more
doaj   +1 more source

Experimental investigation of transonic oscillating cascade aerodynamics [PDF]

Fundamental experiments are performed in the NASA Lewis Transonic Oscillating Cascade Facility to investigate the subsonic and transonic aerodynamics of cascaded airfoils executing torsion mode oscillations at realistic values of reduced frequency.
Buffum, Daniel H., Fleeter, Sanford
core   +1 more source

Effect of dynamic stall on the aerodynamics of vertical-axis wind turbines [PDF]

, 2011
Accurate simulations of the aerodynamic performance of vertical-axis wind turbines pose a significant challenge for computational fluid dynamics methods.
Angell R. K., Niven A. J., Penna P. J., Scheurich F., Sheng W., Simo Ferreira C. J., Strickland J. H., Thwaites B., Toro E., Weissinger J.   +9 more
core   +1 more source

The Legacy of Camillo Possio to Unsteady Aerodynamics [PDF]

, 2006
First a brief overview is given of Camillo Possio’s short but outstanding and fruitful career. This is followed by an outline of the state of the art in flutter and unsteady aerodynamic research, and the challenges and problems like high-speed flight that arose in aircraft development at that time.
openaire   +1 more source

Acoustic‐driven surface cleaning with millimeter‐sized bubbles at translational resonance

Droplet, EarlyView.
Time‐lapse visualization comparing bubble trajectories. The top panel (0 Hz) shows a bubble's linear path under no acoustic forcing, while the bottom panel (50 Hz) demonstrates the oscillatory motion induced by acoustic waves at a resonance mode. This mechanism holds promising potential for applications such as surface cleaning.
Yan Jun Lin, Zhengyang Liu, Sunghwan Jung   +2 more
wiley   +1 more source

Unsteady aerodynamics modeling using Volterra series expansed by basis function

MATEC Web of Conferences, 2018
Unsteady aerodynamics modeling must accurately describe nonlinear aerodynamic characteristics in addition to unsteady aerodynamic characteristics. The Volterra series has attracted increasing attention as a powerful tool for nonlinear system modeling. It
Chen Senlin, Gao Zhenghong
doaj   +1 more source

SUSSA ACTS: A computer program for steady and unsteady, subsonic and supersonic aerodynamics for aerospace complex transportation systems [PDF]

The computer program SUSSA ACTS (Steady and Unsteady, Subsonic and Supersonic Aerodynamics for Complex Transportation Systems) are presented in the final version.
Morino, L., Tseng, K.
core   +1 more source