Výsledky vyhledávání - "Torrey R. S. Hayden"

Characterization of the Buoyant Jet above a Catalytic Combustor Using Wavelength Modulation Spectroscopy

Autor: Nicholas T. Wimer, Mark Strobel, Siddharth P. Nigam, Peter E. Hamlington, Jason D. Christopher, Gregory B. Rieker, Caelan Lapointe, Aniruddha A. Upadhye, Torrey R. S. Hayden

Publikováno v: Combustion Science and Technology. 192:997-1014

Combustion-based processing of polymer films and other materials often requires temporal and spatial uniformity of the combustor. We characterize the temperature and H2O mole fraction of the buoyan...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ca26a9cc5d39c29659a923b6e6e5856
https://doi.org/10.1080/00102202.2019.1604518

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Flow parameter estimation using laser absorption spectroscopy and approximate Bayesian computation

Autor: Gregory B. Rieker, Olga A. Doronina, Torrey R. S. Hayden, Nicholas T. Wimer, Peter E. Hamlington, Ian Grooms, Dan Petrykowski, Caelan Lapointe, Jason D. Christopher

Publikováno v: Experiments in Fluids. 62

Given spatially sparse or lower dimensional experimental measurements, approximate Bayesian computation (ABC) and numerical simulations can be used to estimate unknown characteristics of complex multi-physics engineering systems. Here, we describe th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::049b49096f857dc3bfe7333732365760
https://doi.org/10.1007/s00348-020-03122-2

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Scaling of the puffing Strouhal number for buoyant jets and plumes

Autor: Mark Strobel, Aniruddha A. Upadhye, Peter E. Hamlington, Torrey R. S. Hayden, Siddharth P. Nigam, Gregory B. Rieker, Nicholas T. Wimer, Jason D. Christopher, Caelan Lapointe

Publikováno v: Journal of Fluid Mechanics. 895

Prior research has shown that buoyant jets and plumes ‘puff’ at a frequency that depends on the balance of momentum and buoyancy fluxes at the inlet, as parametrized by the Richardson number. Experiments have revealed the existence of scaling rel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fbd489ed45afff597043ad7cc695ba67
https://doi.org/10.1017/jfm.2020.271

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Characterization of OH, H2O, and temperature profiles in industrial flame treatment systems interacting with polymer films

Autor: Gregory B. Rieker, Aniruddha A. Upadhye, A. Sanchez, Torrey R. S. Hayden, Siddharth P. Nigam, Mark Strobel, Jason D. Christopher, Peter E. Hamlington, Caelan Lapointe, Dan Petrykowski, Nicholas T. Wimer

Publikováno v: Proceedings of the Combustion Institute. 37:1571-1578

Industrial flame treatment is a common technique for oxidizing polymer films to improve adhesion and wettability. These processes are strongly influenced by flame properties such as temperature and the concentration of key combustion radicals (e.g.,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4e624e9ca0d87f09dc93cd7c3edceb78
https://doi.org/10.1016/j.proci.2018.05.058

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OH radical measurements in combustion environments using wavelength modulation spectroscopy and dual-frequency comb spectroscopy near 1491 nm

Autor: Nicholas T. Wimer, Jason D. Christopher, Torrey R. S. Hayden, Nathan A. Malarich, Peter E. Hamlington, Caelan Lapointe, Siddharth P. Nigam, Gregory B. Rieker, Dan Petrykowski

Publikováno v: Applied Physics B. 125

Hydroxyl radical (OH) is a key intermediate reactive species during combustion processes relevant to power production, transportation, and manufacturing. We demonstrate an OH sensor based on in situ laser absorption spectroscopy for deployment in ind

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04151845a93bdc24859e7d039cee6134
https://doi.org/10.1007/s00340-019-7341-6

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Parameter Estimation using Wavelength Modulation Spectroscopy Temperature Measurements and Approximate Bayesian Computation

Autor: Gregory B. Rieker, Daniel Petrykowski, Ian Grooms, Siddharth P. Nigam, Torrey R. S. Hayden, Caelan Lapointe, Peter E. Hamlington, Jason D. Christopher, Nicholas T. Wimer

Publikováno v: Light, Energy and the Environment 2018 (E2, FTS, HISE, SOLAR, SSL).

We use approximate Bayesian computation (ABC) to estimate parameters in a 3D high-temperature turbulent buoyant jet large-eddy simulation (LES). Wavelength modulation spectroscopy (WMS) provides reference temperature measurements. Parameters provide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::890aa98707c8eb9dc8b8399f12aceb7f
https://doi.org/10.1364/ee.2018.em3a.5

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