Results 21 to 30 of about 3,143,739 (339)

Kinematics of a Fluid Ellipse in a Linear Flow

open access: yesFluids, 2018
A four-parameter kinematic model for the position of a fluid parcel in a time-varying ellipse is introduced. For any ellipse advected by an arbitrary linear two-dimensional flow, the rates of change of the ellipse parameters are uniquely determined by ...
Jonathan M. Lilly
doaj   +1 more source

Modal and nonmodal stability analysis of electrohydrodynamic flow with and without cross-flow [PDF]

open access: yes, 2015
We report the results of a complete modal and nonmodal linear stability analysis of the electrohydrodynamic flow (EHD) for the problem of electroconvection in the strong injection region.
Atten   +11 more
core   +2 more sources

Coal flow volume measurement based on linear model partitioning

open access: yesGong-kuang zidonghua, 2023
The precision and computational efficiency of coal quantity measurement for belt conveyors based on linear laser stripes are low. There is a trailing phenomenon during belt operation, as well as data misalignment caused by deviation and drifting.
CHEN Xiangyuan, XUE Xusheng
doaj   +1 more source

Complex flow patterns at the onset of annular electroconvection in a dielectric liquid subjected to an arbitrary unipolar injection [PDF]

open access: yes, 2015
We numerically investigated the annular electroconvection that takes place in a dielectric liquid lying between two concentric cylinder electrodes. A uniform injection of arbitrary strengths either from the inner or outer cylinder introduces free charge ...
Pérez Izquierdo, Alberto Tomás   +3 more
core   +3 more sources

Flow Analysis, Linearity, and PTIME [PDF]

open access: yes, 2008
Flow analysis is a ubiquitous and much-studied component of compiler technology---and its variations abound. Amongst the most well known is Shivers' 0CFA; however, the best known algorithm for 0CFA requires time cubic in the size of the analyzed program and is unlikely to be improved.
Van Horn, David, Mairson, Harry G.
openaire   +2 more sources

Generalized linear‐constrained optimal power flow for distribution networks

open access: yesIET Generation, Transmission & Distribution, 2023
Optimal power flow (OPF) plays an important role in the secure and economical operation of the distribution network. This paper proposes a novel generalized linear‐constrained optimal power flow (GLOPF) model for both radial and mesh distribution ...
Biao Li   +4 more
doaj   +1 more source

Linear stability analysis of blood flow in small vessels

open access: yesApplications in Engineering Science, 2020
We investigate the linear stability of unidirectional Poiseuille flow of blood modeling the fluid as a spatially inhomogeneous fluid in which viscosity depends on the red blood cell concentration (RBCs).
L. Fusi, A. Farina
doaj   +1 more source

Linear/Quadratic Programming-Based Optimal Power Flow using Linear Power Flow and Absolute Loss Approximations

open access: yes, 2017
This paper presents novel methods to approximate the nonlinear AC optimal power flow (OPF) into tractable linear/quadratic programming (LP/QP) based OPF problems that can be used for power system planning and operation.
Demiray, Turhan, Fortenbacher, Philipp
core   +1 more source

Nonlinear Hydrodynamics from Flow of Retarded Green's Function [PDF]

open access: yes, 2010
We study the radial flow of retarded Green's function of energy-momentum tensor and $R$-current of dual gauge theory in presence of generic higher derivative terms in bulk Lagrangian. These are first order non-linear Riccati equations.
A Buchel   +52 more
core   +1 more source

Multi-Angle Liquid Flow Measurement Using Ultrasonic Linear Array Transducer

open access: yesSensors, 2020
Most ultrasonic flowmeters utilize several wedge sensors for transmission and reception. Thus, the location and alignment of the sensors are critical factors that determine the performance of the ultrasonic flowmeter.
Thi Huong Ly Nguyen, Suhyun Park
doaj   +1 more source

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