Catalyst Revised: Rethinking the ParaView in Situ Analysis and Visualization API

Ayachit, Utkarsh; Bauer, Andrew; Boeckel, Ben; Geveci, Berk; Moreland, Kenneth; O’Leary, Patrick; Osika, Tom

doi:10.1007/978-3-030-90539-2_33

Cited by 88 publications

(96 citation statements)

References 9 publications

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“…Graphs were produced using the Matplotlib package (Hunter, 2007) for Python and we make use of the scientific color map, batlow, for select figures (Crameri et al., 2020). Visualizations were produced using Paraview (Ayachit, 2015). This is Cardiff EARTH CRediT Contribution 4.…”

Section: Acknowledgmentsmentioning

confidence: 99%

The Stability of Dense Oceanic Crust Near the Core‐Mantle Boundary

2023

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Seismic tomography models have discerned the presence of two mantle structures close to the core-mantle interface characterized by low seismic velocities. These large low-shear velocity provinces (LLSVPs) sit beneath Africa and the Pacific plate and exhibit a shear velocity anomaly of δlnV s ≈ −2%. Spatially, they are both voluminous and broad (Cottaar & Lekić, 2016), with seismic tomography models showing high power in spherical harmonic degree 2 and to a lesser extent degree 3 structures (Koelemeijer et al., 2016;Ritsema et al., 2011) in the lower mantle. These structures exist within and above the D" layer and may extend >1,000 km into the mantle from the core-mantle boundary (CMB) (He & Wen, 2009;Lekic et al., 2012), with the African LLSVP being significantly taller than the Pacific LLSVP (Ni et al., 2002;Yuan & Li, 2022). Mantle plumes are claimed to cluster around their edges (Thorne et al., 2004) potentially entraining material to be sampled by melting beneath ocean islands. Despite the morphology of LLSVPs being well constrained, increasingly accurate measurements of their material properties and possible direct links to the surface via plumes, their origin and composition remain a matter of debate. This is because the very characteristics that define LLSVPs have a non-unique source; the velocity anomaly may originate thermally, chemically, or thermo-chemically. Consequently there are competing theories over the nature of LLSVPs, are they of a predominantly thermal origin (D. R. Davies et al., 2015;

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Section: Acknowledgmentsmentioning

confidence: 99%

The Stability of Dense Oceanic Crust Near the Core‐Mantle Boundary

2023

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“…Software: ParaView, (Ahrens et al 2005;Ayachit 2015), IDL (Interactive Data Language, https://www. harrisgeospatial.com/Software-Technology/IDL)…”

Section: Acknowledgmentsmentioning

confidence: 99%

Boundary conditions in hydrodynamic simulations of isolated galaxies and their impact on the gas-loss processes

Caproni,

Lanfranchi,

Friaça

et al. 2023

Preprint

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Three-dimensional hydrodynamic simulations are commonly used to study the evolution of the gaseous content in isolated galaxies, besides its connection with galactic star formation histories. Stellar winds, supernova blasts, and black hole feedback are mechanisms usually invoked to drive galactic outflows and decrease the initial galactic gas reservoir. However, any simulation imposes the need of choosing the limits of the simulated volume, which depends, for instance, on the size of the galaxy and the required numerical resolution, besides the available computational capability to perform it. In this work, we discuss the effects of boundary conditions on the evolution of the gas fraction in a small-sized galaxy (tidal radius of ∼1 kpc), like classical spheroidal galaxies in the Local Group. We found that open boundaries with sizes smaller than approximately 10 times the characteristic radius of the galactic dark-matter halo become unappropriated for this kind of simulation after ∼0.6 Gyr of evolution, since they act as an infinity reservoir of gas due to dark-matter gravity. We also tested two different boundary conditions that avoid gas accretion from numerical frontiers: closed and selective boundary conditions. Our results indicate that the later condition (that uses a velocity threshold criterion to open or close frontiers) is preferable since minimizes the number of reversed shocks due to closed boundaries. Although the strategy of putting computational frontiers as far as possible from the galaxy itself is always desirable, simulations with selective boundary condition can lead to similar results at lower computational costs.

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“…A 3-D ground model was developed for the Old Dalby railway cutting using borehole data from the top of the PRIME-monitored section of the slope, along with the ERT images produced from the PRIME ERT data, and a Digital Elevation Model of the site. ERT models were imported into Paraview, a data analysis and visualisation application (Ayachit, 2015), and lithological boundaries were identified in the borehole logs from the site. This information, alongside previous geological interpretations from geology maps of the site was used to inform the location of the lithological boundaries across the PRIME-monitored area of the site.…”

Section: Study Areathe Old Dalby Railway Test Trackmentioning

confidence: 99%