Near-critical fluids
Thermoacoustic heating and cooling in near-critical fluids in the presence of a thermal plume
... in near–critical fluids under Earth gravity ...low-heat-diffusing near-critical van der Waals ...the critical point show that this thermalization process is peculiar to ...
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Rapid Thermal Relaxation in Near-Critical Fluids and Critical Speeding Up: Discrepancies Caused by Boundary Effects
... in Near-Critical Fluids and Critical Speeding Up: Discrepancies Caused by Boundary Effects Arnaud Jounet, 1 Bernard Zappoli, 1,2 and Abdelkader Mojtabi 1 1 Institut de Mécanique des Fluides de ...
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Thermoacoustic heating and cooling in near-critical fluids in the presence of a thermal plume
... in near-critical fluids under 1 g ...the near-critical fluid does not contribute directly to bulk heating, which remains driven by the PE, its interplay with diffusion in the ‘cold’ ...
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Validation of averaged equations for thermal vibrational convection in near-critical fluids
... Abstract Within an averaging approach, the governing equations and effective boundary conditions describing both the average and pulsation motion of a near-critical fluid subjected to hi[r] ...
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Thermal vibrational convection in near-critical fluids. Part 2. Weakly non-uniform heating
... decreases (figure 2b). 3. Isothermal cavity under weightlessness The most interesting result obtained in the preceding § 2 is a possibility of inducing the average temperature variations by vibration, which was shown to ...
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Thermal vibrational convection in near-critical fluids. Part 2. Weakly non-uniform heating
... 5. Discussion and conclusions In Part 1 and here we have examined the influence of vibration and gravity on the behaviour of a single-phase near-critical fluid. The main results are two closed theoretical ...
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Thermal vibrational convection in near-critical fluids. Part 1. Non-uniform heating
... hyper-compressible near-critical fluids, thermoacoustic coupling in the dissipative layers may change the bulk boundary conditions from those simply given by the presence of rigid walls, and also generate ...
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Fast adiabatic heating and temperature relaxation in near-critical fluids under zero gravity
... of a circular region with a well-defined border. In this region, fringes are distorted and the fringe spacing is smaller than in the bulk region. By decreasing t[r] ...
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Thermal vibrational convection in near-critical fluids. Part 1. Non-uniform heating
... We should emphasize the difference between the problem examined here and the works by Zappoli et al. (1996) and Polezhaev & Soboleva (2000), where the behaviour of near-critical fluid filling a square ...
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Validation of averaged equations for thermal vibrational convection in near-critical fluids
... Abstract Within an averaging approach, the governing equations and effective boundary conditions describing both the average and pulsation motion of a near-critical fluid subjected to hi[r] ...
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Low-frequency vibrations in a near-critical fluid
... The response of a near-critical fluid to low-frequency vibrations is investigated by means of numerical simulations. Its characteristics are first established by one-dimensional analysis. It is shown that ...
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Low-frequency vibrations in a near-critical fluid
... concerning critical phenom- ena have shown that heat and mass transfer in a pure fluid near its liquid–vapor critical point is very ...a near-critical fluid submitted to heating or ...
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DYNAMICS NEAR THE GROUND STATE FOR THE ENERGY CRITICAL NONLINEAR HEAT EQUATION IN LARGE DIMENSIONS
... at T exit in a neighborhood of Q ± of size δ arbitrarily small, and hence step 5 ensures that the solution will either blow up type I or dissipate to zero forward in time after T exit . The paper is organized as follows. ...
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Duality in Sub-Supercritical Bubbling in the Brezis-Nirenberg Problem near the Critical Exponent
... The solution predicted by this theorem is a superposition of k bubbles with respective blow-up orders ε 1 2 −j for j = 1, . . . , k. Bubbling solutions for semilinear equations near the critical exponent ...
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Comment on "Turbulent heat transport near critical points: Non-Boussinesq effects" ( cond-mat/0601398 )
... In a recent work, D. Funfschilling and G. Ahlers (FA) [10] observe a new effect, that they interpret as spurious (non-Boussinesq), in their convection cell working with ethane, near its critical point. They ...
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Scattering norm estimate near the threshold for energy-critical focusing semilinear wave equation
... [SS98] Jalal Shatah and Michael Struwe. Geometric wave equations, volume 2 of Courant Lecture Notes in Mathematics. New York University Courant Institute of Mathematical Sciences, New York, 1998. [Tao05] Terence Tao. ...
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A numerical study of cavitation and bubble dynamics in liquid CO2 near the critical point
... 2 near the critical point) by inhibiting early the motion of the bubble ...the critical point. The liquid region near the bubble interface would also reach this state by closely fol- lowing ...
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Diffusion coefficients of solids in supercritical carbon dioxide: Modelling of near critical behaviour
... equal to the solubility y 2 sat predicted from this EoS. Figures 3 illustrate the effect of temperature at a given pressure (P=79 bars for naphthalene and P=75.4 bars for benzoic acid and β-carotene) close to the UCEP of ...
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Instabilities in non-ideal fluids
... 2. Overview The study of linear stability of compressible boundary layers on a flat plate is not new. Motivated by applications related to the civil or military aeronautical sector, different works have very quickly ...
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Complex Fluids and Hydraulic Fracturing
... roundness and sphericity, and density. Sand is commonly used, as are other materials like resin or polymer-based particles, ceramics or carbides, and hollow glass spheres may be added as proppants or as components in a ...
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