Results 11 to 20 of about 8,471 (240)
Numerical Evaluation of Riblet Drag Reduction on a MALE UAV
Aerospace, 2022 Flow control methods for aerodynamic drag reduction have been a field of interest to aircraft designers, who seek to minimize fuel consumption and increase the aircraft’s aerodynamic performance.
Chris Bliamis +3 more
doaj +2 more sources
Drag reduction capacity of multi‐scale and multi‐level riblet in turbulent flow
Biosurface and BiotribologyFor high‐speed moving objects, drag reduction has been a prolonged major challenge. To address this problem, passive and negative strategies have been proposed in the preceding decades.
Dengke Chen +7 more
doaj +2 more sources
Optimization of Drag Reducing Shark Inspired Blade-Shape Riblet Surfaces in External Flow
Journal of Applied Fluid Mechanics, 2020 The main goal of this research is to study the drag reduction capabilities of blade-shape riblet surfaces in external flows. For this purpose, the ability of riblet surfaces for drag reduction of an underwater hydrodynamic model has been investigated ...
M. Monfared, M. A. Alidoostan
doaj +2 more sources
Adult Suicidality and Therapeutic Engagement: A Systematic Review. [PDF]
Clin Psychol PsychotherABSTRACT Background Engagement in mental health care among adults with suicidality remains significantly low, with limited understanding of the factors influencing treatment retention and dropout. Aims Exploring the factors influencing therapeutic engagement, such as attendance, active participation and completion of therapeutic tasks among adults with
Muscat C, Verhaegen F, Clesse C.
europepmc +2 more sources
Bio-inspired Surface Texture Fluid Drag Reduction using Large Eddy Simulation [PDF]
Journal of Applied Fluid Mechanics, 2023 Skin friction drag can be reduced through the application of bio-inspired riblet surfaces. Numerical simulations were performed using Large Eddy Simulation (LES) to investigate the effect of using riblets on reducing skin friction drag.
S. Hijazi, E. Tolouei
doaj +1 more source
Journal of Engineering, 2023 The simulation have been made for 3D flow structure and heat transfer with and without longitudinal riblet upstream of leading edge vane endwall junction of first stage nozzle guide vane .The research explores concept of weakening the secondary ...
Najdat Nashat Abdulla +2 more
doaj +1 more source
Editorial: Brief interventions in suicide prevention across the continuum of care [PDF]
Frontiers in Psychiatry, 2022 Peter C. Britton +7 more
doaj +2 more sources
Numerical simulation of turbulent channel flow with particle-adhered riblet surfaces
Journal of Fluid Science and Technology, 2023 Numerical simulations of particle laden and fully developed turbulent channel flows with rectangular riblet were performed to investigate the influence of particle adhesion on the drag reduction effect.
Chikara SHIMIZU +2 more
doaj +1 more source
Microshape Control, Riblets, and Drag Minimization [PDF]
SIAM Journal on Applied Mathematics, 2013 Relying on the rugosity effect, we analyse the drag minimization problem in relation to the microstructure of the surface of a given obstacle. We construct a mathematical framework for the optimization problem, prove the existence of an optimal solution by $\Gamma$-convergence arguments, and analyze the stability of the drag with respect to the ...
Bucur, Dorin, Bonnivard, Matthieu
openaire +2 more sources
Design of serrate-semi-circular riblets with application to skin friction reduction on engineering surface [PDF]
, 2014 Drag reduction in wall-bounded flows can be achieved by the passive flow control technique through the application of bio-inspired riblet surfaces. This paper presents the innovative design of Serrate-Semi-Circular riblet surfaces particularly focusing ...
Cheng, K +3 more
core +1 more source