Results 11 to 20 of about 71,758 (305)

Discussion on the Non-Linear Stability of Short Hydrodynamic Bearings by Applying Rabinowitsch Fluid Model [PDF]

open access: yesLubricants
Using the Rabinowitsch fluid model, the effects of dilatant fluids (a non-Newtonian factor less than 0) and pseudo-plastic fluids (a non-Newtonian factor greater than 0) on the non-linear stability of hydrodynamic journal bearings is discussed.
Huaiqing Lu, Chunyan Cheng, Zhuxin Tian
doaj   +2 more sources

Local univalence versus stability and causality in hydrodynamic models [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields
Our primary goal is to compare the analytic properties of hydrodynamic series with the stability and causality conditions applied to hydrodynamic modes. Analyticity, in this context, serves as a necessary condition for hydrodynamic series to behave as a ...
Roya Heydari, Farid Taghinavaz
doaj   +5 more sources

On the problem of hydrodynamic stability [PDF]

open access: yesBulletin of the National Technical University "KhPI" A series of "Information and Modeling", 2019
У статті з використанням методу малих збурень отримані математичні моделі гідродинамічної стійкості для однофазних потоків. Для аппроксимаций рівнянь стійкості застосовується спектрально-сітковий метод. Він об'єднує в собі високу точність спектральних методу нерівномірних сіток і дозволяє визначити відразу всі власні значення розглянутої проблеми. Іл.:
Toyirov, Akbar, Kholturaev, Kholsaid
openaire   +3 more sources

Stability of hydrodynamic model for semiconductor. [PDF]

open access: yesArchivum Mathematicum, 2005
Summary: We study the stability of transonic strong shock solutions of the steady state one-dimensional unipolar hydrodynamic model for semiconductors in the isentropic case. The approach is based on the construction of a pseudo-local symmetrizer and on the paradifferential calculus with parameters, which combines the work of Bony-Meyer and the ...
Rosini, Massimiliano Daniele
openaire   +6 more sources

Prevention of hydrodynamic instability conditions in safety systems with pumps of nuclear power plants

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2022
The study of hydrodynamic instability in the safety systems of nuclear power plants is relevant. In the deterministic analysis of the safety of nuclear power plants based on accident simulation, it is necessary to take into account the possibility of ...
Вадим Анатольович Кондратюк   +4 more
doaj   +3 more sources

Calculation of strength of stilling basins and pressure in downstream water outlet structures [PDF]

open access: yesE3S Web of Conferences, 2023
Calculations performed to determine the strength of the stilling basin and apron of the downstream zone should mainly be carried out, considering the conditions of their stability and strength.
Khidirov Sanatjon   +5 more
doaj   +1 more source

Parametric optimization of FPSO hull dimensions for Brazil field using sophisticated stability and hydrodynamic calculations

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2021
In this study, hull dimensions of an FPSO were optimized to maximize its operability at Brazil field. In contrast with the previous works which have used simplified models to evaluate some indicators related to stability and hydrodynamic performances of ...
Jonghun Lee   +3 more
doaj   +1 more source

An expedition to the islands of stability in the first-order causal hydrodynamics

open access: yesPhysics Letters B, 2023
The recently proposed connection between the Lorentz invariance of stability and the speed of signal propagation has been tested for a first-order relativistic dissipative hydrodynamic theory.
Rajesh Biswas, Sukanya Mitra, Victor Roy
doaj   +1 more source

The concept of application of oscillation energy in modern technologies of directional drilling [PDF]

open access: yesE3S Web of Conferences, 2021
In the process of research, there was investigated the question of influence of rotary movement of washing fluid on hydrodynamic processes with the purpose of enhancement of its transportation properties, especially in the process of drilling of ...
Chernova Miroslava, Kuntsiak Yaroslav
doaj   +1 more source

FOWT Stability Study According to Number of Columns Considering Amount of Materials Used

open access: yesEnergies, 2022
Considering stability and fabrication cost, 3–4 columns are usually adopted for semi-submersible platform designs. Although increasing the number of columns provides more stability for both floating platform and system as a whole, it is generally not ...
Ho-Seong Yang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy