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Publications about 'Direct numerical simulations'


A. Dwivedi.
Global inputoutput analysis of flow instabilities in highspeed compressible flows.
PhD thesis,
University of Minnesota,
2020.
Keyword(s): Adjoint equations,
Baseflow sensitivity,
Compressible flows,
Compression ramp flow,
Direct numerical simulations,
Energy amplification,
Flow modeling and control,
Global stability analysis,
Hypersonic flows,
Inputoutput analysis,
Shock Boundary layer interaction,
Reattachment vortices,
Transient growth,
Transition to turbulence.
[bibtexentry]

A. Dwivedi,
G. S. Sidharth,
and M. R. Jovanovic.
Oblique transition in hypersonic doublewedge flow: An inputoutput viewpoint.
J. Fluid Mech.,
2021.
Note: Submitted; also arXiv:2111.15153.
Keyword(s): Compressible flows,
Direct numerical simulations,
Doublewedge flow,
Flow modeling and control,
Hypersonic flows,
Inputoutput analysis,
Oblique waves,
Shock boundary layer interaction,
Reattachment vortices,
Transition to turbulence,
Weakly nonlinear analysis.
[bibtexentry]

A. Dwivedi,
N. Hildebrand,
J. W. Nichols,
G. V. Candler,
and M. R. Jovanovic.
Transient growth analysis of oblique shock wave/boundarylayer interactions at Mach 5.92.
Phys. Rev. Fluids,
5(6):063904 (20 pages),
June 2020.
Keyword(s): Adjoint equations,
Baseflow sensitivity,
Compressible flows,
Direct numerical simulations,
Energy amplification,
Global stability analysis,
Flow modeling and control,
Hypersonic flows,
Transient growth,
Transition to turbulence.
[bibtexentry]

N. Hildebrand,
A. Dwivedi,
J. W. Nichols,
M. R. Jovanovic,
and G. V. Candler.
Simulation and stability analysis of oblique shock wave/boundary layer interactions at Mach 5.92.
Phys. Rev. Fluids,
3(1):013906 (23 pages),
January 2018.
Keyword(s): Adjoint equations,
Baseflow sensitivity,
Compressible flows,
Direct numerical simulations,
Global stability analysis,
Flow modeling and control,
Hypersonic flows,
Transition to turbulence.
[bibtexentry]

B. K. Lieu,
R. Moarref,
and M. R. Jovanovic.
Controlling the onset of turbulence by streamwise traveling waves. Part 2: Direct numerical simulations.
J. Fluid Mech.,
663:100119,
November 2010.
Keyword(s): Controlling the onset of turbulence,
Direct numerical simulations,
Energy amplification,
Flow modeling and control,
Inputoutput analysis,
NavierStokes equations,
Parametric resonance,
Relaminarization,
Spatiallyperiodic systems,
Traveling waves,
Turbulent flows,
Vibrational control.
[bibtexentry]

A. Dwivedi and M. R. Jovanovic.
A weakly nonlinear analysis of responses of a hypersonic flow over a doublewedge to oblique disturbances.
In Proceedings of the 2022 American Control Conference,
Atlanta, GA,
2022.
Note: To appear.
Keyword(s): Compressible flows,
Direct numerical simulations,
Doublewedge flow,
Flow modeling and control,
Hypersonic flows,
InputOutput analysis,
Shock Boundary layer interaction,
Reattachment vortices,
Transition to turbulence,
Weakly nonlinear analysis.
[bibtexentry]

N. Hildebrand,
A. Dwivedi,
G. S. Sidharth,
J. W. Nichols,
M. R. Jovanovic,
and G. V. Candler.
Instabilities in laminar shock boundary layer interactions.
In Proceedings of the 2019 IUTAM Symposium on LaminarTurbulent Transition,
London, United Kingdom,
2019.
Keyword(s): Adjoint equations,
Baseflow sensitivity,
Compressible flows,
Direct numerical simulations,
Global stability analysis,
Flow modeling and control,
Hypersonic flows,
Transition to turbulence.
[bibtexentry]

A. Dwivedi,
J. W. Nichols,
M. R. Jovanovic,
and G. V. Candler.
Optimal spatial growth of streaks in oblique shock/boundary layer interaction.
In Proceedings of the 47th AIAA Fluid Dynamics Conference,
Denver, CO,
pages 4163 (17 pages),
2017.
Keyword(s): Compressible flows,
Direct numerical simulations,
Transient growth,
Hypersonic flows,
Transition to turbulence.
[bibtexentry]

N. Hildebrand,
A. Dwivedi,
J. W. Nichols,
G. V. Candler,
and M. R. Jovanovic.
Sensitivity analysis for the control of oblique shock wave/laminar boundary layer interactions at Mach $5.92$.
In Proceedings of the 47th AIAA Fluid Dynamics Conference,
Denver, CO,
pages 4312 (14 pages),
2017.
Keyword(s): Adjoint equations,
Baseflow sensitivity,
Compressible flows,
Direct numerical simulations,
Global stability analysis,
Flow modeling and control,
Hypersonic flows,
Transition to turbulence.
[bibtexentry]

P. Shrestha,
J. W. Nichols,
M. R. Jovanovic,
and G. V. Candler.
Study of tripinduced hypersonic boundary layer transition.
In Proceedings of the 47th AIAA Fluid Dynamics Conference,
Denver, CO,
pages 4513 (21 pages),
2017.
Keyword(s): Direct numerical simulations,
Dynamic mode decomposition,
Roughness elements,
Hypersonic flows,
Transition to turbulence.
[bibtexentry]

J. Jeun,
J. W. Nichols,
and M. R. Jovanovic.
Inputoutput analysis of heated axisymmetric turbulent jets.
In Proceedings of the 22nd AIAA/CEAS Aeroacoustics Conference,
Lyon, France,
pages 2934 (13 pages),
2016.
Keyword(s): Acoustics,
Direct numerical simulations,
Flow modeling and control,
Inputoutput analysis,
Jet noise.
[bibtexentry]

P. Shrestha,
A. Dwivedi,
N. Hildebrand,
J. W. Nichols,
M. R. Jovanovic,
and G. V. Candler.
Interaction of an oblique shock with a transitional Mach $5.65$ boundary layer.
In Proceedings of the 46th AIAA Fluid Dynamics Conference,
Washington, DC,
pages 3647 (14 pages),
2016.
Keyword(s): Compressible flows,
Direct numerical simulations,
Dynamic mode decomposition,
Flow modeling and control,
Hypersonic flows,
Transition to turbulence.
[bibtexentry]

B. K. Lieu,
R. Moarref,
and M. R. Jovanovic.
Preventing transition to turbulence using streamwise traveling waves: direct numerical simulations.
In Proceedings of the 2010 American Control Conference,
Baltimore, MD,
pages 33353340,
2010.
[bibtexentry]
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