Nathaniel Ray Morgan

Dr. Nathaniel Ray Morgan


Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 August 2013 in Computers & Fluids
Verified
Journal Article
Closed access
DBD.E. Burton
D.E. Burton
TCT.C. Carney
T.C. Carney
NMNathaniel Ray Morgan
Nathaniel Ray Morgan
SSS.K. Sambasivan
S.K. Sambasivan
MSM.J. Shashkov
M.J. Shashkov

1 February 2014 in Journal of Computational Physics
Verified
Journal Article
Open access
NMNathaniel Ray Morgan
Nathaniel Ray Morgan
KLKonstantin N. Lipnikov
Konstantin N. Lipnikov
DBDonald E. Burton
Donald E. Burton
MKMark A. Kenamond
Mark A. Kenamond
Much research in Lagrangian staggered-grid hydrodynamics (SGH) has focused on explicit viscosity models for adding dissipation to a calculation that has shocks. The explicit viscosity is commonly called “artificial viscosity”. Recently, researchers have developed hydrodynamic algorithms that incorporate approximate Riemann solutions on the dual grid [28,29,35,30,2,3]. This approach adds dissipation to the calculation via solving a Riemann-like problem. In this work, we follow the works of [28,29,35,30] and solve a multidirectional Riemann-like problem at the cell center. The Riemann-like solution at the cell center is used in the momentum and energy equations. The multidirectional Riemann-like problem used in this work differs from previous work in that it is an extension of the cell-centered hydrodynamics (CCH) nodal solution approach in [7]. Incorporating the multidirectional Riemann-like problem from [7] into SGH has merits such as the ability to resist mesh instabilities like hourglass null modes and chevron null modes. The approach is valid for complex multidimensional flows with strong shocks. Numerical details and test problems are presented

1 October 2015 in Journal of Computational Physics
Verified
Journal Article
Closed access
DBD.E. Burton
D.E. Burton
NMNathaniel Ray Morgan
Nathaniel Ray Morgan
TCT.C. Carney
T.C. Carney
MKM.A. Kenamond
M.A. Kenamond

1 February 2018 in Computers & Fluids
Verified
Journal Article
Closed access
XLXiaodong Liu
Xiaodong Liu
NMNathaniel Ray Morgan
Nathaniel Ray Morgan
DBDonald E. Burton
Donald E. Burton

1 June 2019 in Journal of Computational Physics
Verified
Journal Article
Closed access
XLXiaodong Liu
Xiaodong Liu
NMNathaniel Ray Morgan
Nathaniel Ray Morgan
DBDonald E. Burton
Donald E. Burton

1 March 2014 in Computers & Fluids
Verified
Journal Article
Closed access
JWJ. Waltz
J. Waltz
NMNathaniel Ray Morgan
Nathaniel Ray Morgan
TCT.R. Canfield
T.R. Canfield
MCM.R.J. Charest
M.R.J. Charest
LRL.D. Risinger
L.D. Risinger
JWJ.G. Wohlbier
J.G. Wohlbier