Results 141 to 150 of about 1,275 (262)

Hovering hawkmoths exploit unsteady circulation to produce aerodynamic force. [PDF]

Biol Lett
Liu Y, Li B, Zhou D.
europepmc   +1 more source

Unsteady Aerodynamics and Adjoint Method

, 2011
Cette thèse contribue à la simulation numérique des écoulements d'un fluide compressible modélisé par les équations de Euler et Navier-Stokes: étude d'un schéma d'ordre élévé basé sur une matrice de masse, modélisation des écoulement turbulents compressibles à très haut Reynolds, développement des estimateurs et correcteurs d'erreurs a posteriori et a ...
openaire   +1 more source

Noise and Vibration Analysis of a Tri‐Lobe Compressor for Industry Application: A Finite Element and Campbell Diagram Approach

Engineering Reports, Volume 8, Issue 8, August 2026.
Finite element and Campbell analyses evaluated noise and vibration in a tri‐lobe compressor. A critical speed of 243 rad/s due to backward whirl was identified. Modal and static results revealed vibration hotspots at flanges and lobe tips. Design optimization enhances structural integrity, reduces resonance risk, and minimizes noise emission.
P. Ashoka Varthanan, C. Rajendran, N. Babu, K. Mallieswaran, A. Johnson Santhosh   +4 more
wiley   +1 more source

Bio-Inspired Blade Cascades: Numerical Predictions Versus Experimental Measurements. [PDF]

Biomimetics (Basel)
Totu AG, Crunțeanu DE, Isvoranu D.
europepmc   +1 more source

Computational Investigation of MHD Radiative Flow of Shape‐Dependent Al2O3$$ A{l}_2{O}_3 $$ and Fe3O4$$ F{e}_3{O}_4 $$ Nanofluids in A Semi‐Porous Channel

Engineering Reports, Volume 8, Issue 8, August 2026.
A computational study of unsteady MHD radiative nanofluid flow in a semi‐porous channel reveals that nanoparticle shape, volume fraction, and magnetic effects significantly influence velocity and heat transfer. Results highlight strong coupling between geometric, electromagnetic, and thermophysical parameters in optimizing thermal system performance ...
Mahmmoud M. Syam, Sondos M. Syam, Muhammed I. Syam   +2 more
wiley   +1 more source

Bioinspired Morphing in Aerodynamics and Hydrodynamics: Engineering Innovations for Aerospace and Renewable Energy. [PDF]

Biomimetics (Basel)
Shahid F, Alam M, Park JY, Choi Y, Park CJ, Park HK, Yi CY.   +6 more
europepmc   +1 more source

Unsteady Magnetohydrodynamics Heat‐Generating Oldroyd‐B Nanofluid Flow in a Stretching Power Generator Duct Using the Crank–Nicolson Method

Engineering Reports, Volume 8, Issue 8, August 2026.
This study explores how a heat‐generating Oldroyd‐B nanofluid behaves inside an annular hydromagnetic power‐generator duct with a porous, axially stretching inner cylinder. The coupled flow, heat, mass, and magnetic‐field equations are solved using the Crank–Nicolson method.
Kafunda Tuesday, Muzundu Kelvin, Oreta Timothy   +2 more
wiley   +1 more source

Additively Manufactured Dragonfly-Inspired Wings for Bio-Faithful Flapping MAV Development. [PDF]

Biomimetics (Basel)
Prisăcariu EG, Dumitrescu O, Strătilă S, Sima M, Săvescu C, Vlăducă I, Cuciumita C.   +6 more
europepmc   +1 more source

Fast Calculation for the Flow and Heat Transfer of Tempered Fractional Maxwell Viscoelastic Fluid

International Journal for Numerical Methods in Fluids, Volume 98, Issue 8, Page 969-979, August 2026.
This study develops a tempered fractional Maxwell model to simulate unsteady thermal flow in viscoelastic fluids, capturing key rheological behaviors. A fast SOE‐based algorithm is proposed to improve the computational efficiency of the numerical scheme. Results reveal how key parameters influence fluid motion and heat transfer, demonstrating the model'
Yi Liu, Mochen Jiang, Libo Feng
wiley   +1 more source

On Bio-Inspired Strategies for Flow Control, Fluid-Structure Interaction, and Thermal Transport. [PDF]

Biomimetics (Basel)
Ahmed F, Chamorro LP.
europepmc   +1 more source