Ascent phase convective heat transfer of a stratospheric-balloon-borne payload

Fernández-Soler, Alejandro; Bárcena, David González; Torralbo-Gimeno, Ignacio; Pérez-Grande, Isabel

doi:10.1016/j.asr.2023.04.010

Cited by 5 publications

(2 citation statements)

References 15 publications

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“…However, for stratospheric balloon missions, the definition of the cold case differs significantly. In this type of missions, the ascent phase has long residence periods on the different layers of the atmosphere which makes it necessary to study the presence of convective heat transfer for the definition of the cold case of the mission [4].…”

Section: Introductionmentioning

confidence: 99%

On the use of cup anemometers as wind speed sensors in stratospheric balloon missions

Alfonso-Corcuera,

Ogueta-Gutiérrez,

Pindado

et al. 2024

J. Phys.: Conf. Ser.

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Stratospheric balloon missions have emerged as a cost-effective alternative to space missions for scientific research and technology development. These missions enable the collection of critical data from the Earth’s upper atmosphere while reducing financial and logistical burdens associated with traditional space missions. One key challenge in these missions is the accurate measurement of the relative-to-the-gondola wind speed in the tropopause and the stratosphere. This paper explores the viability of using cup anemometers as wind speed sensors in stratospheric balloon missions, offering an easy-to-calibrate, low-cost, and accurate solution. The present paper provides a short overview of stratospheric balloon missions and their relevance in atmospheric research and outlines the challenges and limitations of existing wind speed sensing technologies. The cup anemometer is also described, detailing its working principle, advantages, and limitations, and propose a methodology for incorporating the instrument into stratospheric balloon missions. To validate the proposed methodology, a stratospheric balloon mission (the Tasec-Lab experiment, onboard a B2Space balloon launched in 2021), was equipped with a cup anemometer whose performance was analyzed. The results prove that cup anemometers can provide accurate and reliable relative wind speed measurements in the tropopause and the stratosphere. Furthermore, the low power consumption and the ease of development and calibration of cup anemometers make them an attractive option for stratospheric balloon missions.

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Section: Introductionmentioning

confidence: 99%

On the use of cup anemometers as wind speed sensors in stratospheric balloon missions

Alfonso-Corcuera,

Ogueta-Gutiérrez,

Pindado

et al. 2024

J. Phys.: Conf. Ser.

Self Cite

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show abstract

“…The resulting problem reduces to a system of first-order ordinary differential equations for the transient case, and a system of non-linear equations for the steady-state case. However, in other cases, despite the low pressure found, it is necessary to account for the convective effects [18]. An accurate analysis of these systems would force the thermal engineer to use a Computational Fluid Dynamics (CFD) tool that allows to solve the Navier-Stokes problem to obtain both, the air flow and the temperature distribution in the surrounding air [19].…”

Section: Introductionmentioning

confidence: 99%