ISS Quasi-steady Accelerometric Data as a Tool for the Detection of External Disturbances During the Period 2009-2016

Marin, Marta Santa Maria; Dubert, Diana; Simon, Michael; Ollé, J.; Gavaldà, Jna.; Ruíz, Xavier

doi:10.1007/s12217-018-9612-y

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…With the vibration as the only driving force, there are also extensive studies especially in the field of aerospace engineering. In a spacecraft experiment, the vibration frequency can reach up to 100 Hz (Marín et al 2018;Dong et al 2019) and a series of long-duration microgravity vibration experiments have been performed using spacecraft. Field experiments on TVC in microgravity can be traced back to that on the Apollo spacecraft (Grodzka, Fan & Hedden 1971;Bannister et al 1973).…”

Section: Introductionmentioning

confidence: 99%

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Flow structure transition in thermal vibrational convection

Guo,

Wu,

Wang

et al. 2023

J. Fluid Mech.

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This study investigates the effect of vibration on the flow structure transitions in thermal vibrational convection (TVC) systems, which occur when a fluid layer with a temperature gradient is excited by vibration. Direct numerical simulation (DNS) of TVC in a two-dimensional enclosed square box is performed over a range of dimensionless vibration amplitudes $0.001 \le a \le 0.3$ and angular frequencies $10^{2} \le \omega \le 10^{7}$ , with a fixed Prandtl number of 4.38. The flow visualisation shows the transition behaviour of flow structure upon the varying frequency, characterising three distinct regimes, which are the periodic-circulation regime, columnar regime and columnar-broken regime. Different statistical properties are distinguished from the temperature and velocity fluctuations at the boundary layer and mid-height. Upon transition into the columnar regime, columnar thermal coherent structures are formed, in contrast to the periodic oscillating circulation. These columns are contributed by the merging of thermal plumes near the boundary layer, and the resultant thermal updrafts remain at almost fixed lateral position, leading to a decrease in fluctuations. We further find that the critical point of this transition can be described nicely by the vibrational Rayleigh number ${{Ra}}_{vib}$ . As the frequency continues to increase, entering the so-called columnar-broken regime, the columnar structures are broken, and eventually the flow state becomes a large-scale circulation (LSC), characterised by a sudden increase in fluctuations. Finally, a phase diagram is constructed to summarise the flow structure transition over a wide range of vibration amplitude and frequency parameters.

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Section: Introductionmentioning

confidence: 99%

“…In a spacecraft experiment, the vibration frequency can reach up to 100 Hz (Marín et al. 2018; Dong et al. 2019) and a series of long-duration microgravity vibration experiments have been performed using spacecraft.…”

Section: Introductionmentioning

confidence: 99%