Results 21 to 30 of about 4,116,169 (343)
European Journal of Combinatorics, 2022 A bridgeless graph $G$ is called $3$-flow-critical if it does not admit a nowhere-zero $3$-flow, but $G/e$ has for any $e\in E(G)$. Tutte's $3$-flow conjecture can be equivalently stated as that every $3$-flow-critical graph contains a vertex of degree three. In this paper, we study the structure and extreme edge density of $3$-flow-critical graphs. We
Li, Jiaao +4 more
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Sensors, 2023 The article describes the combination of experimental measurements with mathematical–physics analyses in flow investigation in the chambers of the scintillator detector, which is a part of the environmental scanning electron microscope.
Jiří Maxa +3 more
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Critical flow velocities in cohesive saline soils [PDF]
E3S Web of Conferences, 2021 The article discusses the issue of determining non-erosion velocities for cohesive saline soil at the bottom and slopes of canals. Based on the formulas of Ts.E. Mirtskhulava for the determination of non-eroding velocities of water flow in cohesive soils,
Eshev Sobir +5 more
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A Critical Flow Model for Supercritical Pressures
Frontiers in Earth Science, 2020 The investigation of critical flow model for supercritical pressure condition is relatively rare. Based on isentropic flow and thermal equilibrium assumptions, a model is derived to calculate discharge flow rate and critical pressure.
Yufeng Lv, Minfu Zhao, Kaiwen Du
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Energies, 2021 The paper presents a study of the critical flow phenomena modeling with MELCOR 2.2.15254 severe accident computer code. The Marviken Critical Flow Test number 21 (CFT-21) experiment was selected as a representative critical flow-focused Separate Effect ...
Mateusz Włostowski +2 more
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The critical 2d Stochastic Heat Flow
Inventiones mathematicae, 2023 AbstractWe consider directed polymers in random environment in the critical dimension $$d = 2$$ d = 2 , focusing on the intermediate disorder regime when the model undergoes a phase transition. We prove that, at criticality, the diffusively
Caravenna F., Sun R., Zygouras N.
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An Investigation into Sub-Critical Choke Flow Performance in High Rate Gas Condensate Wells
Energies, 2019 There have been some correlations in the literature to predict the gas and liquid flow rate through wellhead chokes under subcritical flow conditions. The majority of these empirical correlations have been developed based on limited production data sets ...
Hamid Reza Nasriani +6 more
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Modern vision for critical flow in an egg-shaped section
Water Science and Technology, 2021 The critical regime plays a primordial role in the study of gradually varying flows by classifying flow regimes and slopes. Through this work, a new approach is proposed to analyze critical flow regime in an egg-shaped channel.
Hachemi Rachedi Lamia +2 more
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Time dependent hydraulic falls and trapped waves over submerged obstructions [PDF]
, 2014 We consider the classical problem of a free surface flowing past one or more disturbances in a channel. The fluid is assumed to be inviscid and incompressible, and the flow, irrotational.
Page, Charlotte, Parau, Emilian
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Experimental validation of multiphase flow models and testing of multiphase flow meters: A critical review of flow loops worldwide [PDF]
, 2016 Around the world, research into multiphase flow is performed by scientists with hugely diverse backgrounds: physicists, mathematicians and engineers from mechanical, nuclear, chemical, civil, petroleum, environmental and aerospace disciplines ...
Bello, O. O. +2 more
core +4 more sources