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Microgravity Science and Technology
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#1Luis Antonio Davalos-Orozco (UNAM: National Autonomous University of Mexico)H-Index: 3
The nonlinear sideband thermocapillary instability of a thin liquid film coating the inside of a heated cylinder in the absence of gravity is investigated. It is shown that for a newtonian fluid and under the approximation of small wavenumber and large radius of the cylinder, the axial and all azimuthal modes with wavenumber kmax > 0 have the same linear maximum growth rate, in the same way as in a previous papers for flow outside the cylinder. Here, this indeterminacy of the linear problem is r...
1 CitationsSource
#1Kai Cui (HIT: Harbin Institute of Technology)
#2Hui Liu (HIT: Harbin Institute of Technology)H-Index: 5
Last. Daren Yu (HIT: Harbin Institute of Technology)H-Index: 32
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In order to reduce the interference of space environment in space microgravity experiments, one drag-free and attitude control system could be used in space science experiments to compensate non-conservative forces and to minimize residual disturbances of the satellite. As the main parts of the drag-free control system, noises of thrusters and GPS receivers have significant impacts on the performance of the control system. To accurately analyze these effects, a cusped field thruster is used in t...
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#1Ruiting Tong (NPU: Northwestern Polytechnical University)H-Index: 1
#2Geng Liu (NPU: Northwestern Polytechnical University)H-Index: 1
In space environment, the adhesion effects can cause a high adhesion component of a friction force, and the impact effects caused by the microgravity can induce a high ploughing component, so the friction force is higher than the ground environment. Nanoscale textures affect the adhesion behaviors by reducing contact areas, and they also vary the shear strength of the interface, which are beneficial to the friction reduction. Considering the impact effects, the motion of a clearance joint is sim...
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Joule heating near ion-selective cation-exchange membranes in an external electric field can cause two modes of instability, namely, the thermogravitational convection, which reminds a well-known Rayleigh–Benard convection, and a novel type of instability, the thermoelectrokinetic instability. Stability of a quiescent one-dimensional steady-state solution to infinite small sinusoidal perturbations has been investigated in a wide range of the Rayleigh numbers. It has been found that, for the both...
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#1Yanni Jiang (Hohai University)
#1Yanni Jiang (Hohai University)H-Index: 1
Last. Yang WangH-Index: 1
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In order to reveal the influence of nanoparticle shape on heat transfer in nanofluid nucleate boiling process, a three-dimensional numerical investigation of nanofluid thermocapillary convection around a gas bubble is conducted. Five different shaped nanoparticles are used in this study and the nanofluid flow is simulated by two-phase mixture model. The thermocapillary convection intensity of nanofluid with spherical nanoparticles is the largest, which is followed by blade, brick, cylinder and p...
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Top fields of study
Convection
Physics
Heat transfer
Mechanics
Classical mechanics
Thermodynamics