Results 171 to 180 of about 8,471 (240)

What's going well: a qualitative analysis of positive patient and family feedback in the context of the diagnostic process. [PDF]

open access: yesDiagnosis (Berl)
Liu SK   +8 more
europepmc   +1 more source

Drag reduction of turbulent boundary layer over sawtooth riblet surface with superhydrophobic coat

The Physics of Fluids, 2023
The application of drag reduction tech holds great significance to energy saving. To achieve better drag reduction, we investigated the flow characteristics of the turbulent boundary layer (TBL) over a composite surface made of sawtooth riblets with ...
Jinge Hu, Zhaohui Yao
semanticscholar   +1 more source

Fractal Riblets

AIAA Journal, 2018
Koch-like riblets that iteratively protrude toward the outside (the fluid region) or cave in at the wall are examined. The near-wall microscopic fluid problem is addressed by solving for the Stokes flow with a boundary element method, yielding slip lengths for all the surface shapes considered.
Alinovi, Edoardo   +2 more
openaire   +1 more source

Numerical investigation of the linear evolution of Tollmien–Schlichting waves over longitudinal riblet surface

The Physics of Fluids, 2023
The effect of longitudinal riblets on the spatially developing Tollmien–Schlichting (T–S) waves within the boundary layer is numerically investigated by direct numerical simulation.
Kangling Wu   +3 more
semanticscholar   +1 more source

Effects of Riblet Dimensions on the Transitional Boundary Layers Over High-Lift Turbine Blades

Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, 2023
Substantial research exists in the literature on reducing the profile loss of transitional boundary layers over low-pressure turbine (LPT) blades via different mechanisms such as free-stream turbulence, upstream wakes, and surface roughness.
Ananth Sivaramakrishnan Malathi   +5 more
semanticscholar   +1 more source

Riblet Performance Beneath Transitional and Turbulent Boundary Layers at Low Reynolds Numbers

AIAA Journal, 2023
Several high-resolution scale-resolving simulations are carried out to examine the effect of riblets on the mean and turbulent statistics of a zero-pressure-gradient boundary layer.
Sivaramakrishnan Malathi Ananth   +5 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy