On the precision of aero-thermal simulations for TMT

Vogiatzis, Konstantinos; Thompson, Hugh A.

doi:10.1117/12.2233706

Cited by 3 publications

(1 citation statement)

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“…Among them we find the largest single optical-infrared telescope of the world, the "Gran Telescopio de Canarias" (GTC) (Gran Telescopio de Canarias 2021). The ORM will host more telescopes in the forthcoming years and complies with the requirements of important international observatories like the Thirty Meter Telescope (TMT) (Teran et al 2018) (Vogiatzis et al 2018).…”

Section: Overviewmentioning

confidence: 99%

Risk Assessment of Environmental Conditions Affecting the Useful Lifetime of Cherenkov Telescopes at El Roque de Los Muchachos Observatory

Márquez¹,

Martínez²,

Gaug³

et al. 2022

PASP

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Construction and operation of ground astrophysical facilities can be affected by adverse weather conditions. Some weather risks are obvious, but still there are times when an unforeseen event distorts the perception of how relevant a climate-related risk is. On the other hand, adverse weather conditions can delay or entirely halt the construction project of an astronomical facility. The impact of weather risks becomes stronger if the facility is built at a site far from urban areas, where maintenance activities and hardware availability become more challenging. This paper aims at proposing a procedure to analyze the impact of environmental risks for an astronomical facility. This procedure is illustrated with a case study: El Roque de Los Muchachos Observatory (ORM). ORM hosts a number of large scale instruments for astrophysics research, which will significantly increase during this decade. We analyze in this paper the environmental conditions affecting the useful lifetime of Cherenkov Telescopes installed at the ORM. After a detailed analysis, we conclude that the risks of strongest magnitude are connected to wild fires. This conclusion diverges from the current risk perception, which is strongly influenced by the recent Cumbre Vieja Eruption event.

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Section: Overviewmentioning

confidence: 99%

Risk Assessment of Environmental Conditions Affecting the Useful Lifetime of Cherenkov Telescopes at El Roque de Los Muchachos Observatory

Márquez¹,

Martínez²,

Gaug³

et al. 2022

PASP

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The SDSS-V Local Volume Mapper Instrument (LVM-I): enclosure design, construction, and performance

Blanc,

Morales,

Besser

et al. 2024

Ground-Based and Airborne Telescopes X

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Computational Fluid Dynamics-Based Systems Engineering for Ground-Based Astronomy

Vogiatzis,

Angeli,

Trancho

et al. 2024

Computation

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This paper presents the state-of-the-art techniques employed in aerothermal modeling to respond to the current observatory design challenges, particularly those of the next generation of extremely large telescopes (ELTs), such as the European ELT, the Thirty Meter Telescope International Observatory (TIO), and the Giant Magellan Telescope (GMT). It reviews the various aerothermal simulation techniques, the synergy between modeling outputs and observatory integrating modeling, and recent applications. The suite of aerothermal modeling presented includes thermal network models, Computational Fluid Dynamics (CFD) models, solid thermal and deformation models, and conjugate heat transfer models (concurrent fluid/solid simulations). The aerothermal suite is part of the overall observatory integrated modeling (IM) framework, which also includes optics, dynamics, and controls. The outputs of the IM framework, nominally image quality (IQ) metrics for a specific telescope state, are fed into a stochastic framework in the form of a multidimensional array that covers the range of influencing operational parameters, thus providing a statistical representation of observatory performance. The applications of the framework range from site selection, ground layer characterization, and site development to observatory performance current best estimate and optimization, active thermal control design, structural analysis, and an assortment of cost–performance trade studies. Finally, this paper addresses planned improvements, the development of new ideas, attacking new challenges, and how it all ties to the “Computational Fluid Dynamics Vision 2030” initiative.

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On the precision of aero-thermal simulations for TMT

Cited by 3 publications

References 0 publications

Risk Assessment of Environmental Conditions Affecting the Useful Lifetime of Cherenkov Telescopes at El Roque de Los Muchachos Observatory

Risk Assessment of Environmental Conditions Affecting the Useful Lifetime of Cherenkov Telescopes at El Roque de Los Muchachos Observatory

The SDSS-V Local Volume Mapper Instrument (LVM-I): enclosure design, construction, and performance

Computational Fluid Dynamics-Based Systems Engineering for Ground-Based Astronomy

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