A Hysteresis of Supercritical Water Convection in an Open Elongated Cavity at a Fixed Vertical Heat Flux

Sharifulin, V. A.; Lyubimova, Tatyana

doi:10.1007/s12217-021-09887-3

Cited by 6 publications

(3 citation statements)

References 17 publications

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“…This is also confirmed by experimental data for the middle class technological spacecraft [7][8][9]. When implementing gravity-sensitive processes, there is no effect of temperature shock on the level of micro-accelerations of the internal environment [10][11][12].…”

Section: Introductionsupporting

confidence: 64%

“…The dependence of temperature stresses on time is shown in Figure 6. 1 -for the case of fixing the elastic element corresponding to Figure 2b; 2 -for the case of fixing the elastic element corresponding to Figure 3b Adding up with the stresses from the initial deflection in accordance with expression (9), they exceed the critical values (11). This leads to the loss of stability shown in Figure 3.…”

Section: Numerical Modelingmentioning

confidence: 93%

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Modeling the Effect of a Temperature Shock on the Rotational Motion of a Small Spacecraft, Considering the Possible Loss of Large Elastic Elements Stability

Sedelnikov

Serdakova

Orlov

et al. 2022

Microgravity Sci. Technol.

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The paper investigates the issues of a small spacecraft large elastic elements temperature shock influence within the framework of a two-dimensional model of thermal conductivity, taking into account the possible loss of stability during the temperature shock. The loss of stability causes additional movements of large elastic elements sections. The thermoelasticity problem is solved, in which the parameters of the relative motion of large elastic elements, including the loss of stability, are estimated. Additional micro-accelerations resulting from the loss of stability are estimated. Recommendations are given to avoid the loss of stability during the temperature shock.

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Section: Introductionsupporting

confidence: 64%

Section: Numerical Modelingmentioning

confidence: 93%

Modeling the Effect of a Temperature Shock on the Rotational Motion of a Small Spacecraft, Considering the Possible Loss of Large Elastic Elements Stability

Sedelnikov

Serdakova

Orlov

et al. 2022

Microgravity Sci. Technol.

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show abstract

“…Due to the real three-dimensionality of such flows and, consequently, the absence of incompressibility for two-dimensional sections of the velocity field, the appearance of sources and sinks of tracer particles on the surface of the layer is possible. This leads to new features of their transport and statistical characteristics, which can be controlled by changing the parameters of nonuniform heating, such as bifurcations and hysteresis phenomena [9]. For such flows, it is possible to use extensive experimental and numerical data to study their stability properties and investigate the transport of indicator particles in these flows, comparing the transport properties with those found for model flows.…”

mentioning

confidence: 99%

Dissipative structures of convection Marangoni in a thin layer of liquid with lattice of localized and continuously distributed heat sources and sinks

Wertgeim

Sharifulin

2023

Preprint

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The three-dimensional solutions of nonlinear long-wavelength approximations for the problem of Marangoni convection in a thin horizontal layer of a viscous incompressible fluid with a free surface is being considered. The temperature distribution in the liquid corresponds to a uniform vertical gradient distorted by the imposition of a weakly inhomogeneous heat flux localized in the horizontal plane, caused by a lattice of either localized or continuously distributed heat sources and sinks. The lower boundary of the layer is solid and thermally insulated, while the upper one is free and deformable. The statement of the problem is motivated by the search for ways to control convection structures. The problem in long-wave approximation is described by a system of nonlinear transport equations for the amplitudes of temperature distribution and surface deformation. The numerical solution of the problem is based on the pseudospectral method. The dynamics of non-stationary dissipative structures is considered.

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Consideration of the Initial Deformation From Natural Oscillations of Large Elastic Elements of the Spacecraft When Assessing Microaccelerations From Thermal Shock Using a Two-dimensional Model of Thermal Conductivity

Sedelnikov

V.V.

S.V.

et al. 2022

Microgravity Sci. Technol.

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A Hysteresis of Supercritical Water Convection in an Open Elongated Cavity at a Fixed Vertical Heat Flux

Cited by 6 publications

References 17 publications

Modeling the Effect of a Temperature Shock on the Rotational Motion of a Small Spacecraft, Considering the Possible Loss of Large Elastic Elements Stability

Modeling the Effect of a Temperature Shock on the Rotational Motion of a Small Spacecraft, Considering the Possible Loss of Large Elastic Elements Stability

Dissipative structures of convection Marangoni in a thin layer of liquid with lattice of localized and continuously distributed heat sources and sinks

Consideration of the Initial Deformation From Natural Oscillations of Large Elastic Elements of the Spacecraft When Assessing Microaccelerations From Thermal Shock Using a Two-dimensional Model of Thermal Conductivity

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