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Your search keyword '"J, Brimacombe"' showing total 2 results
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2 results on '"J, Brimacombe"'

1. Effect of Porosity and Injection Ratio on the Performance of Transpiration Cooling through Gyroids

Author

Benjamin J. Brimacombe, James A. Scobie, Joseph M. Flynn, Carl M. Sangan, and Oliver J. Pountney

Subjects
transpiration cooling, periodic porous structures, gyroids, additive manufacturing, injection ratio, effective area, Mechanical engineering and machinery, TJ1-1570
Abstract

This paper presents experimental measurements of adiabatic effectiveness for three transpiration cooling porosities (ϕ= 0.3, 0.4, and 0.5) constructed from gyroid lattice structures. To the authors’ knowledge, this is the first use of a Triply Periodic Minimal Surface (TPMS) function to produce transpiration test coupons of varying porosity. Polymer gyroid lattice structures were successfully printed using Stereolithography (SLA) down to ϕ= 0.3 for a print resolution of 25 microns and unit cell size of 2 mm. Cooling performance was measured in a small-scale wind tunnel. High-resolution Infrared Thermography was used to determine wall temperatures downstream of the porous section. When tested at both common blowing ratios (M = 0.029, 0.048, and 0.062) and common injection ratios (F = 0.010, 0.017, and 0.022) the cooling performance was found to be dependent on porosity for constant M but not for constant F. Having determined F as the more important parameter for comparison, results are presented alongside transpiration and effusion data from literature.

Published
2023
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2. The ASAS-SN Bright Supernova Catalog -- V. 2018-2020

Author

K D Neumann, T W-S Holoien, C S Kochanek, K Z Stanek, P J Vallely, B J Shappee, J L Prieto, T Pessi, T Jayasinghe, J Brimacombe, D Bersier, E Aydi, C Basinger, J F Beacom, S Bose, J S Brown, P Chen, A Clocchiatti, D D Desai, Subo Dong, E Falco, S Holmbo, N Morrell, J V Shields, K V Sokolovsky, J Strader, M D Stritzinger, S Swihart, T A Thompson, Z Way, L Aslan, D W Bishop, G Bock, J Bradshaw, P Cacella, N Castro-Morales, E Conseil, R Cornect, I Cruz, R G Farfan, J M Fernandez, A Gabuya, J-L Gonzalez-Carballo, M R Kendurkar, S Kiyota, R A Koff, G Krannich, P Marples, G Masi, L A G Monard, J A Muñoz, B Nicholls, R S Post, Z Pujic, G Stone, L Tomasella, D L Trappett, and W S Wiethoff

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Space and Planetary Science, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

We catalog the 443 bright supernovae discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN) in $2018-2020$ along with the 519 supernovae recovered by ASAS-SN and 516 additional $m_{peak}\leq18$ mag supernovae missed by ASAS-SN. Our statistical analysis focuses primarily on the 984 supernovae discovered or recovered in ASAS-SN $g$-band observations. The complete sample of 2427 ASAS-SN supernovae includes earlier $V$-band samples and unrecovered supernovae. For each supernova, we identify the host galaxy, its UV to mid-IR photometry, and the offset of the supernova from the center of the host. Updated light curves, redshifts, classifications, and host galaxy identifications supersede earlier results. With the increase of the limiting magnitude to $g\leq18$ mag, the ASAS-SN sample is roughly complete up to $m_{peak}=16.7$ mag and is $90\%$ complete for $m_{peak}\leq17.0$ mag. This is an increase from the $V$-band sample where it was roughly complete up to $m_{peak}=16.2$ mag and $70\%$ complete for $m_{peak}\leq17.0$ mag., Comment: 14 pages, 7 figures, 4 tables. Updated to reflect changes made in the published version. Tables containing the catalog data presented in this submission are included in machine-readable format as ancillary files

Published
2022
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