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Journal Articles

100-Year Analysis of Roll Decay for Surface-Ship Models

Joel T. Park, Andrew M. McCoy
Journal: Journal of Verification, Validation and Uncertainty Quantification
Publisher: ASME
Article Type: Research-Article
J. Verif. Valid. Uncert. March 2025, 10(1): 011001.
Paper No: VVUQ-24-1026
https://doi.org/10.1115/1.4067850
Published Online: March 13, 2025
View Article titled, 100-Year Analysis of Roll Decay for Surface-Ship Models
Open the PDF for 100-Year Analysis of Roll Decay for Surface-Ship Models in another window
Topics: Damping, Keel, Ships, Uncertainty, Crane barges
Image
( a ) Bilge keels off and ( b ) bilge keels on, time history of roll decay ...

( a ) Bilge keels off and ( b ) bilge keels on, time history of roll decay ...

in 100-Year Analysis of Roll Decay for Surface-Ship Models > Journal of Verification, Validation and Uncertainty Quantification
Published Online: March 13, 2025
Fig. 1 ( a ) Bilge keels off and ( b ) bilge keels on, time history of roll decay in still water for U.S. crane ship model from EMB [ 2 ] More about this image found in ( a ) Bilge keels off and ( b ) bilge keels on, time history of roll decay ...
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( a ) Linear plot, ( b ) residual plot, and ( c ) zero plot, roll decay tim...

( a ) Linear plot, ( b ) residual plot, and ( c ) zero plot, roll decay tim...

in 100-Year Analysis of Roll Decay for Surface-Ship Models > Journal of Verification, Validation and Uncertainty Quantification
Published Online: March 13, 2025
Fig. 2 ( a ) Linear plot, ( b ) residual plot, and ( c ) zero plot, roll decay time history of R/V Melville model at Fr = 0.2281±0.0047 from Park [ 5 ] More about this image found in ( a ) Linear plot, ( b ) residual plot, and ( c ) zero plot, roll decay tim...
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Diagram of symbols for roll decay from curve fit of R/V Melville run #019...

Diagram of symbols for roll decay from curve fit of R/V Melville run #019...

in 100-Year Analysis of Roll Decay for Surface-Ship Models > Journal of Verification, Validation and Uncertainty Quantification
Published Online: March 13, 2025
Fig. 3 Diagram of symbols for roll decay from curve fit of R/V Melville run #0193 More about this image found in Diagram of symbols for roll decay from curve fit of R/V Melville run #019...
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FFT for roll period from R/V Melville model run #0193

FFT for roll period from R/V Melville model run #0193

in 100-Year Analysis of Roll Decay for Surface-Ship Models > Journal of Verification, Validation and Uncertainty Quantification
Published Online: March 13, 2025
Fig. 4 FFT for roll period from R/V Melville model run #0193 More about this image found in FFT for roll period from R/V Melville model run #0193
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( a ) Function of time and ( b ) function of average roll angle, roll dampi...

( a ) Function of time and ( b ) function of average roll angle, roll dampi...

in 100-Year Analysis of Roll Decay for Surface-Ship Models > Journal of Verification, Validation and Uncertainty Quantification
Published Online: March 13, 2025
Fig. 5 ( a ) Function of time and ( b ) function of average roll angle, roll damping coefficient by log decrement for R/V Melville model run #0193 More about this image found in ( a ) Function of time and ( b ) function of average roll angle, roll dampi...
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( a ) Linear plot and ( b ) residual plot, roll angle time history in calm ...

( a ) Linear plot and ( b ) residual plot, roll angle time history in calm ...

in 100-Year Analysis of Roll Decay for Surface-Ship Models > Journal of Verification, Validation and Uncertainty Quantification
Published Online: March 13, 2025
Fig. 6 ( a ) Linear plot and ( b ) residual plot, roll angle time history in calm water at zero speed for R/V Melville model run #0200 More about this image found in ( a ) Linear plot and ( b ) residual plot, roll angle time history in calm ...
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Time series before roll initiation in calm water at zero speed for R/V Me...

Time series before roll initiation in calm water at zero speed for R/V Me...

in 100-Year Analysis of Roll Decay for Surface-Ship Models > Journal of Verification, Validation and Uncertainty Quantification
Published Online: March 13, 2025
Fig. 7 Time series before roll initiation in calm water at zero speed for R/V Melville model run #0201 More about this image found in Time series before roll initiation in calm water at zero speed for R/V Me...
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Roll damping coefficient for R/V Melville model from Park [ 5 ]

Roll damping coefficient for R/V Melville model from Park [ 5 ]

in 100-Year Analysis of Roll Decay for Surface-Ship Models > Journal of Verification, Validation and Uncertainty Quantification
Published Online: March 13, 2025
Fig. 8 Roll damping coefficient for R/V Melville model from Park [ 5 ] More about this image found in Roll damping coefficient for R/V Melville model from Park [ 5 ]
Image
( a ) Bilge keels off and ( b ) bilge keels on, curve fit of peaks for U. S...

( a ) Bilge keels off and ( b ) bilge keels on, curve fit of peaks for U. S...

in 100-Year Analysis of Roll Decay for Surface-Ship Models > Journal of Verification, Validation and Uncertainty Quantification
Published Online: March 13, 2025
Fig. 9 ( a ) Bilge keels off and ( b ) bilge keels on, curve fit of peaks for U. S. crane ship model from EMB [ 2 ] More about this image found in ( a ) Bilge keels off and ( b ) bilge keels on, curve fit of peaks for U. S...
Image
( a ) Bilge keels off and ( b ) bilge keels on, residual plot for U. S. cra...

( a ) Bilge keels off and ( b ) bilge keels on, residual plot for U. S. cra...

in 100-Year Analysis of Roll Decay for Surface-Ship Models > Journal of Verification, Validation and Uncertainty Quantification
Published Online: March 13, 2025
Fig. 10 ( a ) Bilge keels off and ( b ) bilge keels on, residual plot for U. S. crane ship model from EMB [ 2 ] More about this image found in ( a ) Bilge keels off and ( b ) bilge keels on, residual plot for U. S. cra...
Journal Articles

On Order Elevation for Unstructured Finite Volume Solvers Using Defect Correction

Akhil Jayasankar, Carl Ollivier-Gooch
Journal: Journal of Verification, Validation and Uncertainty Quantification
Publisher: ASME
Article Type: Research-Article
J. Verif. Valid. Uncert. December 2024, 9(4): 041005.
Paper No: VVUQ-24-1011
https://doi.org/10.1115/1.4067849
Published Online: February 20, 2025
View Article titled, On Order Elevation for Unstructured Finite Volume Solvers Using Defect Correction
Open the PDF for On Order Elevation for Unstructured Finite Volume Solvers Using Defect Correction in another window
Topics: Errors, Interpolation
Image
Convergence of error in solution and derivatives before and after smoothing...

Convergence of error in solution and derivatives before and after smoothing...

in On Order Elevation for Unstructured Finite Volume Solvers Using Defect Correction > Journal of Verification, Validation and Uncertainty Quantification
Published Online: February 20, 2025
Fig. 1 Convergence of error in solution and derivatives before and after smoothing (this plot is reused from our previous work [ 29 ]) More about this image found in Convergence of error in solution and derivatives before and after smoothing...
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Improvement in rate of convergence of the solution after defect correction

Improvement in rate of convergence of the solution after defect correction

in On Order Elevation for Unstructured Finite Volume Solvers Using Defect Correction > Journal of Verification, Validation and Uncertainty Quantification
Published Online: February 20, 2025
Fig. 2 Improvement in rate of convergence of the solution after defect correction More about this image found in Improvement in rate of convergence of the solution after defect correction
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Error in solution before (left) and after (right) optimization for advectio...

Error in solution before (left) and after (right) optimization for advectio...

in On Order Elevation for Unstructured Finite Volume Solvers Using Defect Correction > Journal of Verification, Validation and Uncertainty Quantification
Published Online: February 20, 2025
Fig. 3 Error in solution before (left) and after (right) optimization for advection problem More about this image found in Error in solution before (left) and after (right) optimization for advectio...
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Error in y -derivative before (left) and after (right) optimization for ad...

Error in y -derivative before (left) and after (right) optimization for ad...

in On Order Elevation for Unstructured Finite Volume Solvers Using Defect Correction > Journal of Verification, Validation and Uncertainty Quantification
Published Online: February 20, 2025
Fig. 4 Error in y -derivative before (left) and after (right) optimization for advection problem More about this image found in Error in y -derivative before (left) and after (right) optimization for ad...
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Error in yy -derivative before (left) and after (right) optimization for a...

Error in yy -derivative before (left) and after (right) optimization for a...

in On Order Elevation for Unstructured Finite Volume Solvers Using Defect Correction > Journal of Verification, Validation and Uncertainty Quantification
Published Online: February 20, 2025
Fig. 5 Error in yy -derivative before (left) and after (right) optimization for advection problem More about this image found in Error in yy -derivative before (left) and after (right) optimization for a...
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Effect of optimization on convergence of solution and derivatives (left) an...

Effect of optimization on convergence of solution and derivatives (left) an...

in On Order Elevation for Unstructured Finite Volume Solvers Using Defect Correction > Journal of Verification, Validation and Uncertainty Quantification
Published Online: February 20, 2025
Fig. 6 Effect of optimization on convergence of solution and derivatives (left) and performance of defect correction (right); 2D advection problem More about this image found in Effect of optimization on convergence of solution and derivatives (left) an...
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Density contour for supersonic vortex flow in a quarter annulus (this plot ...

Density contour for supersonic vortex flow in a quarter annulus (this plot ...

in On Order Elevation for Unstructured Finite Volume Solvers Using Defect Correction > Journal of Verification, Validation and Uncertainty Quantification
Published Online: February 20, 2025
Fig. 7 Density contour for supersonic vortex flow in a quarter annulus (this plot is reused from our previous work [ 29 ]) More about this image found in Density contour for supersonic vortex flow in a quarter annulus (this plot ...
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Error in control volume averages of density on an unstructured mesh with 11...

Error in control volume averages of density on an unstructured mesh with 11...

in On Order Elevation for Unstructured Finite Volume Solvers Using Defect Correction > Journal of Verification, Validation and Uncertainty Quantification
Published Online: February 20, 2025
Fig. 8 Error in control volume averages of density on an unstructured mesh with 11,513 cells; primal (left) and defect corrected (right) More about this image found in Error in control volume averages of density on an unstructured mesh with 11...