Results 1 to 10 of about 36 (36)

A thick aerodynamic profile with regions of negative lift slope and possible implications on profiles for wind turbine blades

open access: yesWind Energy, Volume 24, Issue 2, Page 162-173, February 2021., 2021
Abstract In the high pressure wind tunnel (HochDruckkanal Goettingen [HDG]) of Deutsch–Niederländische Windkanäle—German–Dutch Wind Tunnels (DNW) a 47% thick airfoil‐like symmetrical profile was investigated at a high (3 to 12 million) Reynolds number. As an unusual feature, a negative lift slope dcL/dα < 0 close to zero lift has been re‐observed under
Alois Peter Schaffarczyk   +1 more
wiley   +1 more source

Weak Solutions and Optimal Control of Hemivariational Evolutionary Navier‐Stokes Equations under Rauch Condition

open access: yesJournal of Function Spaces, Volume 2020, Issue 1, 2020., 2020
In this paper, we consider the evolutionary Navier‐Stokes equations subject to the nonslip boundary condition together with a Clarke subdifferential relation between the dynamic pressure and the normal component of the velocity. Under the Rauch condition, we use the Galerkin approximation method and a weak precompactness criterion to ensure the ...
Hicham Mahdioui   +3 more
wiley   +1 more source

“The joy that engineers and mathematicians have come together.”1

open access: yes, 2020
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 100, Issue 2, February 2020.
Reinhard Siegmund‐Schultze
wiley   +1 more source

Singularity methods for magnetohydrodynamics

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 9, Issue 1, Page 111-122, 1986., 1986
Singular solutions for linearized MHD equations based on Oseen approximations have been obtained such as Oseenslet. Oseenrotlet, mass source, etc. By suitably distributing these singular solutions along the axes of symmetry of an axially symmetric bodies, we derive the approximate values for the velocity fields, the force and the momentum for the case ...
A. D. Alawneh, N. T. Shawagfeh
wiley   +1 more source

Structural Color from Cellulose Nanocrystals or Chitin Nanocrystals: Self-Assembly, Optics, and Applications. [PDF]

open access: yesChem Rev, 2023
Frka-Petesic B   +11 more
europepmc   +1 more source

Mechanical Characterisation and Analysis of a Passive Micro Heat Exchanger. [PDF]

open access: yesMicromachines (Basel), 2020
Granados-Ortiz FJ, Ortega-Casanova J.
europepmc   +1 more source

Home - About - Disclaimer - Privacy