Galerkin v. least-squares Petrov–Galerkin projection in nonlinear model reduction [PDF]
Journal of Computational Physics, 2017 Submitted to Journal of Computational ...
Kevin Carlberg, Harbir Antil
exaly +3 more sources
Stator elements optimization of centrifugal compressor intermediate type stage by CFD methods [PDF]
E3S Web of Conferences, 2020 Optimal gas-dynamic design is a complex and time-consuming process. Modern CFD methods help in solving optimization problems and reliably calculating characteristics of stator elements of centrifugal compressor stages.
Marenina Lyubov +2 more
doaj +1 more source
Experience of designing a low-pressing turbocharger compressor using the modern version of a Universal modelling method [PDF]
E3S Web of Conferences, 2020 The paper presents the joint experience of the NPO “Turbotekhnika” and the R&D Laboratory “Gas Dynamics of Turbomachines” of SPbPU for designing a centrifugal compressor operating at pressure ratio 1.61 and a mass flow rate of 0.62 kg/s.
Galerkin Yuri +2 more
doaj +1 more source
Numerical solution of Fredholm integral equation of the first kind with degenerated kernel by using Hermite polynomial [PDF]
مجلة التربية والعلم, 2006 In this paper we used Hermite polynomial with Galerkin , collocation and least square methods for solving fredholm integral equations of the first kind (F.I.E.F.K) with degenerated kernel .The algorithms and computer applications of the algorithms are ...
Talhat I.Hassan, Najmaddin A.Sulaiman
doaj +1 more source
Centrifugal compressor impeller loading factor analysis [PDF]
E3S Web of Conferences, 2019 The loading factor performance modelling is an important part of centrifugal compressor performance calculation. The presented information on model stages’ test data confirms the fact that the loading factor versus flow coefficient at an impeller exit is
Galerkin Y., Drozdov A., Rekstin A.
doaj +1 more source
New version of Universal modeling method for centrifugal compressors calculation development [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019 Similarity theory principles are widely applied in gas dynamic design. But completely new solutions must be realized on a base of engineering approaches to predict performances.
Yu. B. Galerkin, A. A. Drozdov
doaj +1 more source
Verification of a simplified mathematical model of centrifugal compressor stages [PDF]
E3S Web of Conferences, 2019 To calculate the efficiency of a centrifugal compressor, it is sufficient to know the design parameters and similarity criteria: flow rate coefficient, loading factor, relative hub ratio, Mach number.
Rekstin A. +3 more
doaj +1 more source
Development of mathematical model of Universal modeling method for centrifugal compressors calculation [PDF]
E3S Web of Conferences, 2019 The heart of the Universal modeling engineering method is the physical model that is based on flow visualization and measurements inside rotating impellers. The experience of its application allowed finding ways of mathematical model development.
Galerkin Yuri +3 more
doaj +1 more source
Journal of Modern Power Systems and Clean Energy, 2021 In power systems, there are many uncertainty factors such as power outputs of distributed generations and fluctuations of loads. It is very beneficial to power system analysis to acquire an explicit function describing the relationship between these ...
Hao Wu +5 more
doaj +1 more source
Convergence Analysis of the Lowest Order Weakly Penalized Adaptive Discontinuous Galerkin Methods [PDF]
, 2012 In this article, we prove convergence of the weakly penalized adaptive discontinuous Galerkin methods. Unlike other works, we derive the contraction property for various discontinuous Galerkin methods only assuming the stabilizing parameters are large ...
Gudi, Thirupathi, Guzmán, Johnny
core +1 more source