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Publications of A. Dwivedi


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.
J. Fluid Mech.,
948:A37,
October 2022.
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]

A. Dwivedi,
G. S. Sidharth,
J. W. Nichols,
G. V. Candler,
and M. R. Jovanovic.
Reattachment vortices in hypersonic compression ramp flow: an inputoutput analysis.
J. Fluid Mech.,
880:113135,
December 2019.
Keyword(s): Compressible flows,
Compression ramp flow,
Flow modeling and control,
Hypersonic flows,
InputOutput analysis,
Shock Boundary layer interaction,
Reattachment vortices,
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]

A. Dwivedi and M. R. Jovanovic.
Energy amplification of stochasticallyforced hypersonic blunt body flows.
In Proceedings of the 2023 American Control Conference,
San Diego, CA,
pages 15961601,
2023.
Keyword(s): Compressible flows,
Inputoutput analysis,
Energy amplification,
Flow modeling and control,
Highspeed compressible boundary layers,
Hypersonic flows,
Transition to turbulence.
[bibtexentry]

A. Dwivedi and M. R. Jovanovic.
Noise amplification in hypersonic blunt body flows.
In Proceedings of the 2023 AIAA Aviation and Aeronautics Forum,
San Diego, CA,
pages 3709 (12 pages),
2023.
Keyword(s): Compressible flows,
Inputoutput analysis,
Energy amplification,
Flow modeling and control,
Highspeed compressible boundary layers,
Hypersonic flows,
Transition to turbulence.
[bibtexentry]

A. Dwivedi and M. R. Jovanovic.
A weakly nonlinear analysis of transition in a hypersonic flow.
In Proceedings of the 2022 American Control Conference,
Atlanta, GA,
pages 41714176,
2022.
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]

A. Dwivedi,
G. V. Candler,
and M. R. Jovanovic.
A frequency domain analysis of compressible linearized NavierStokes equations in a hypersonic compression ramp flow.
In Proceedings of the 2020 American Control Conference,
Denver, CO,
pages 43254330,
2020.
Keyword(s): Compressible flows,
Compression ramp flow,
Flow modeling and control,
Hypersonic flows,
InputOutput analysis,
Shock Boundary layer interaction,
Reattachment vortices,
Transition to turbulence.
[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,
G. S. Sidharth,
G. V. Candler,
J. W. Nichols,
and M. R. Jovanovic.
Inputoutput analysis of shock boundary layer interaction.
In Proceedings of the 48th AIAA Fluid Dynamics Conference,
Atlanta, GA,
pages 3220 (17 pages),
2018.
Keyword(s): Compressible flows,
InputOutput analysis,
Shock Boundary layer interaction,
Hypersonic flows.
[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,
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]
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