Results 81 to 90 of about 197,024 (274)

Flow in a model turbine stator [PDF]

In view of the complex nature of the flowfield in the hot section of gas turbine engines, the need to predict heat transfer and flow losses, the possible appearance of separation and strong secondary flows, etc., the present effort is focusing upon a ...
Briley, W. R., Buggeln, R. C., Shamroth, S. J.   +2 more
core   +1 more source

Comparative Numerical Studies for the Flow Energy Dissipation Features in a Vertical Two‐Stage Centrifugal Pump in Pump and Turbine Conditions

Energy Science &Engineering, EarlyView.
Based on entropy theory, this study presents a comparative numerical analysis of the flow energy dissipation (FED) in a VTSP under two distinct operating conditions: pump condition and turbine condition, both characterized by relatively high hydraulic efficiencies of 88.9% and 87.4%, respectively. In pump condition, the highest FED production occurs in
S. Liu, T. P. Chen, Y. Li, M. Q. Liang, Y. J. Zhang, X. Z. Wei   +5 more
wiley   +1 more source

Existence and regularity of solutions to the Leray-alpha model with Navier slip boundary conditions

Electronic Journal of Differential Equations, 2016
We establish the existence and regularity of a unique weak solution to turbulent flows in a bounded domain $\Omega\subset\mathbb R^3$ governed by the Leray-$\alpha$ model with Navier slip boundary condition for the velocity. Furthermore, we show that
Hani Ali, Petr Kaplicky
doaj  

Development of a Novel Modified Mean‐Line Approach for Performance Prediction of Axial Compressors

Energy Science &Engineering, EarlyView.
ABSTRACT There is significant importance in accurate prediction of axial flow compressor characteristics at different conditions. Different techniques and models have been proposed for performance prediction of axial compressors. Because of its lower computational cost and high speed the meanline algorithm has been widely applied in preliminary design ...
Sina Hassanlue, Mohammad Alhuyi Nazari, Mohammadreza Pakatchian   +2 more
wiley   +1 more source

Uniform Error Estimates of the Finite Element Method for the Navier-Stokes Equations in R2 with L² Initial Data. [PDF]

Entropy (Basel), 2023
Ren S, Wang K, Feng X.
europepmc   +1 more source

Finite-time blowup for smooth solutions of the Navier--Stokes equations\n on the whole space with linear growth at infinity [PDF]

, 2021
Evan W. Miller
openalex   +1 more source

Forced Draught Impact on Externally Venting Flames: An Experimental and Numerical Investigation

Fire and Materials, EarlyView.
ABSTRACT Wind can significantly influence fire development and spread in urban and forest environments causing fatal consequences for the public, the first responders, and the environment. Wind‐driven fires can have a significant impact on structural fires as wind can increase the fire's intensity, development, and flame spread.
Anoop Subramania Warrier, Jan Smolka, Kamila Kempna, Meet Panchal, Tony Graham, Eleni Asimakopoulou   +5 more
wiley   +1 more source

The Double-Logarithmic Regularity Criterion of Pressure for the 3D Navier–Stokes Equations in the Besov Space

Journal of Mathematics
In the paper, we consider the regularity of the weak solutions for the incompressible 3D Navier–Stokes (N–S) equations. Our main result is the double-logarithmic regularity criterion of pressure for the 3D Navier–Stokes equations in the Besov space ...
Min Liu, Juan Song, Tian-Li Li
doaj   +1 more source

Euler/Navier-Stokes calculations of transonic flow past fixed- and rotary-wing aircraft configurations [PDF]

Computational fluid dynamics has an increasingly important role in the design and analysis of aircraft as computer hardware becomes faster and algorithms become more efficient.
Agarwal, R. K., Deese, J. E.
core   +1 more source

A stochastic Galerkin method with adaptive time-stepping for the Navier–Stokes equations

, 2022
Bedřich Sousedík, Randy Price
openalex   +1 more source