Zobrazeno 1 - 10
of 265
pro vyhledávání: '"Nichols, Joseph"'
Autor:
Cook, David A., Nichols, Joseph W.
Understanding the receptivity of hypersonic flows to free-stream disturbances is crucial for predicting laminar to turbulent boundary layer transition. Input-output analysis as a receptivity tool considers which free-stream disturbances lead to the l
Externí odkaz:
http://arxiv.org/abs/2306.03248
Autor:
Araya, Daniel B., Bitter, Neal P., Wheaton, Bradley M., Kamal, Omar, Colonius, Tim, Knutson, Anthony, Johnson, Heath, Nichols, Joseph, Candler, Graham V., Russo, Vincenzo, Brehm, Christoph
Boundary-layer instabilities for a finned cone at Mach=6, $Re=8.4 \times 10^6$ [m$^{-1}$], and zero incidence angle are examined using linear stability methods of varying fidelity and maturity, following earlier analysis presented in [doi.org/10.2514
Externí odkaz:
http://arxiv.org/abs/2303.10747
Autor:
Dwivedi, Anubhav, Hildebrand, Nathaniel, Nichols, Joseph W., Candler, Graham V., Jovanović, Mihailo R.
Publikováno v:
Phys. Rev. Fluids 5, 063904 (2020)
We study physical mechanisms that trigger transient growth in a high-speed spatially-developing laminar boundary layer that interacts with an oblique shock wave. We utilize an approach based on power-iteration, with the global forward and adjoint lin
Externí odkaz:
http://arxiv.org/abs/1901.09132
Autor:
Dwivedi, Anubhav, Sidharth, G. S., Nichols, Joseph W., Candler, Graham V., Jovanović, Mihailo R.
Publikováno v:
J. Fluid Mech. (2019), vol. 880, pp. 113-135
We employ global input-output analysis to quantify amplification of exogenous disturbances in compressible boundary layer flows. Using the spatial structure of the dominant response to time-periodic inputs, we explain the origin of steady reattachmen
Externí odkaz:
http://arxiv.org/abs/1811.09046
Autor:
Jeun, Jinah, Nichols, Joseph W.
We examine amplifying behavior of small perturbations about Reynolds-averaged Navier-Stokes solutions (RANS) of a $M_j = 0.9$ subsonic turbulent jet using input-output (I/O) analysis. Singular value decomposition (SVD) of the resolvent of the lineari
Externí odkaz:
http://arxiv.org/abs/1806.09280
Autor:
Hildebrand, Nathaniel, Dwivedi, Anubhav, Nichols, Joseph W., Jovanović, Mihailo R., Candler, Graham V.
Publikováno v:
Phys. Rev. Fluids 3, 013906 (2018)
We investigate flow instability created by an oblique shock wave impinging on a Mach 5.92 laminar boundary layer at a transitional Reynolds number. The adverse pressure gradient of the oblique shock causes the boundary layer to separate from the wall
Externí odkaz:
http://arxiv.org/abs/1712.08239
Akademický článek
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Publikováno v:
The Review of Financial Studies, 2020 Nov 01. 33(11), 5173-5211.
Externí odkaz:
https://www.jstor.org/stable/48597516
Autor:
Nichols, Joseph A.
Publikováno v:
Online access for everyone.
Thesis (M.S. in genetics and cell biology)--Washington State University, August 2008.
Includes bibliographical references (p. 39-43).
Includes bibliographical references (p. 39-43).
Autor:
Nichols, Joseph B.
Thesis (Ph. D.) -- University of Maryland, College Park, 2005.
Thesis research directed by: Economics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Thesis research directed by: Economics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Externí odkaz:
http://hdl.handle.net/1903/2664