Results 1 to 10 of about 30,464 (215)
Stall identification methods in centrifugal compressor [PDF]
MATEC Web of Conferences, 2023 The presented paper describes a method for detecting compressor stall precursors in a measured pressure signal using procedures arising from the chaos theory.
Mlkvik Marek +2 more
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Methods of determination of the gas-dynamic characteristics of a jet nozzle of an aerodynamic object
Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2021 The efficiency of aerodynamic objects with jet engines is the result of many factors, among which nozzle parameters are of great importance in relation to the general engine design and the energy source, that determines the composition and properties of ...
A. Ph. Ilyushchanka +3 more
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Entanglement Dynamics of Random GUE Hamiltonians
SciPost Physics, 2021 In this work, we consider a model of a subsystem interacting with a reservoir and study dynamics of entanglement assuming that the overall time-evolution is governed by non-integrable Hamiltonians.
Daniel Chernowitz, Vladimir Gritsev
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Physics Letters B, 2020 We show that the recently formulated causal and stable first-order hydrodynamics has the same dynamics as Israel-Stewart theory for boost-invariant, Bjorken expanding systems with an ideal gas equation of state and a regulating sector determined by a ...
Arpan Das +3 more
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Optimizing the relaxation route with optimal control
Physical Review Research, 2021 We look into the minimization of the connection time between nonequilibrium steady states. As a prototypical example of an intrinsically nonequilibrium system, a driven granular gas is considered.
A. Prados
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Reconstruction of cosmological models are inspired by generalization of the Chaplygin gas
Қарағанды университетінің хабаршысы. Физика сериясы, 2022 This paper considers models arising from the composition of the modified Gauss–Bonnet gravity (the Gauss–Bonnet invariant) and the general relativity (the Ricci scalar) against the background of a flat, homogeneous, and isotropic space-time described by
П.Ю. Цыба +2 more
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Nonlinear Density Wave Theory in a Gaseous Disk
The Astronomical Journal, 2023 A nonlinear solution for the gaseous component of a galactic disk has been derived self-consistently using fluid description and reductive perturbation theory. We show that gas follows a spiral pattern, similarly to the stellar component; but the spirals
Miroslava Vukcevic
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Journal of Function Spaces, 2021 In this paper, we study the (3+1)-dimensional variable-coefficient nonlinear wave equation which is taken in soliton theory and generated by utilizing the Hirota bilinear technique.
Xuejun Zhou +5 more
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Applications in Engineering Science, 2022 A thermodynamically consistent model for heat and mass transfer in deformable wood fibers is developed. The hybrid mixture theory is used to model the material as a mixture of three phases, consisting of a solid, a liquid and a gas phase. The solid phase
Winston Mmari, Björn Johannesson
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Multiscale Eulerian CFD of Chemical Processes: A Review
ChemEngineering, 2020 This review covers the scope of multiscale computational fluid dynamics (CFD), laying the framework for studying hydrodynamics with and without chemical reactions in single and multiple phases regarded as continuum fluids.
Son Ich Ngo, Young-Il Lim
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