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Reports by Author

Yuming Liu


Click on the titles below to find US government-authored or -collected reports written by Yuming Liu

Total Results: 28 Results per page:
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Expansion of a Direct Simulation-Based Study of Radiance in a Dynamic Ocean 12 Dec 2012 5 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The objective of the project is to apply advanced physics-based computational prediction capabilities, for oceanic radiative transfer, surface wave dynamics and near surface turbulence, to further understand the characteristics and obtain modeling parameterizations of underwater radiance in realistic ocean environments by making use of the field measurements obtained in the ONR RaDyO project. The focus of the research is on direct quantitative comparisons and cross validations and calibrations of the ...


A Direct Simulation-Based Study of Radiance in a Dynamic Ocean 31 Oct 2011 8 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The ultimate goal is to develop direct simulation/physics-based forward and inverse capabilities for radiance prediction in a dynamic ocean environment. This direct simulation-based model will include and integrate all of the relevant dynamical processes in the upper ocean surface boundary layer into a physics-based computational prediction capability for the time-dependent radiative transport.


High-Resolution Measurement-Based Phase-Resolved Prediction of Ocean Wavefields 30 Sep 2011 8 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.Given remote and direct physical measurements of a realistic ocean wavefield, obtain a high-resolution description of the wavefield by integrating the measurements with phase-resolved wave prediction model including realistic environmental effects such as wind forcing and wave breaking dissipation. Inform and guide the measurements necessary for achieving this reconstruction and address the validity, accuracy and limitations of such wavefield reconstructions.


Fundamental Research to Support Direct Phase-Resolved Simulation of Nonlinear Ocean Wavefield Evolution 30 Sep 2011 6 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The long-term goal is to develop a new generation of wave prediction capability, which is called SNOW (simulation of nonlinear ocean wavefield), for the evolution of large-scale nonlinear ocean wavefields using direct phase-resolved simulations. Unlike the phase-averaged approaches, SNOW models the key physical mechanisms such as nonlinear wave-wave, wave-current, wave-wind and wave-bottom interactions and wave-breaking dissipation in a direct physics-based context.


Expansion of a Direct Simulation-Based Study of Radiance in a Dynamic Ocean 30 Sep 2011 6 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The ultimate goal is to develop direct simulation/physics-based forward and inverse capabilities for radiance prediction in a dynamic ocean environment. The simulation-based model will include and integrate all of the relevant dynamical processes in the upper ocean surface boundary layer into a physics-based computational prediction capability for the time-dependent radiative transport.


Mechanisms of Fluid-Mud Interactions Under Waves 30 Sep 2011 18 pages
Authors:  Robert A Dalrymple; John H Trowbridge; Dick K Yue; Samuel J Bentley; Gail C Kineke; Yuming Liu; Chiang C Mei; Lian Shen; Peter A Traykovski; JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF CIVIL ENGINEERING
The full text of this report is available for sale.The goals of this project are to investigate the mechanisms for wave dissipation in the presence of bottom mud. These mechanisms are being examined via field measurements in the Gulf of Mexico, laboratory experiments of waves over a mud bottom, and numerical and theoretical analyses. Implementation of these various damping mechanisms into numerical models provides the ability to not only predict wave behavior over mud, but also to infer from ...


Mechanisms of Fluid-Mud Interactions Under Waves Jan 2011 19 pages
Authors:  Robert A Dalrymple; John H Trowbridge; Dick K Yue; Samuel J Bentley; Gail C Kineke; Yuming Liu; Chiang C Mei; Lian Shen; Peter A Traykovski; JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF CIVIL ENGINEERING
The full text of this report is available for sale.The goals of this project are to investigate the mechanisms for wave dissipation in the presence of bottom mud. These mechanisms are being examined via field measurements in the Gulf of Mexico, laboratory experiments of waves over a mud bottom, and numerical and theoretical analyses. Implementation of these various damping mechanisms into numerical models provides the ability to not only predict wave behavior over mud, but also to infer from ...


Fundamental Research to Support Direct Phase-Resolved Simulation of Nonlinear Ocean Wavefield Evolution 30 Sep 2010 7 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The long-term goal is to develop a new generation of wave prediction capability, which is called SNOW (simulation of nonlinear ocean wave-field), for the evolution of large-scale nonlinear ocean wavefields using direct phase-resolved simulations. Unlike the phase-averaged approaches, SNOW models the key physical mechanisms such as nonlinear wave-wave, wave-current, wave-wind and wave-bottom interactions and wave-breaking dissipation in a direct physics-based context.


High-Resolution Measurement-Based Phase-Resolved Prediction of Ocean Wavefields 30 Sep 2010 7 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.Given remote and direct physical measurements of a realistic ocean wavefield, obtain a high-resolution description of the wavefield by integrating the measurements with phase-resolved wave prediction model including realistic environmental effects such as wind forcing and wave breaking dissipation. Inform and guide the measurements necessary for achieving this reconstruction and address the validity, accuracy and limitations of such wavefield reconstructions.


Direct Phase-Resolved Simulation of Large-Scale Nonlinear Ocean Wave-Field 27 Jan 2010 9 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The objective of this research is to develop a new powerful capability, which is called SNOW (simulation of nonlinear ocean wave-field), for predicting the evolution of large-scale nonlinear wavefields using direct phase-resolved simulations. Unlike the phased-averaged approaches, SNOW models the key physical mechanisms such as nonlinear wave-wave, wave-current, wave-wind and wave-bottom interactions and wave breaking dissipation in a direct physics-based context. SNOW is now capable of simulating the nonlinear evolution ...


Phase-Resolved Reconstruction and Forecast of Ocean Wavefields Using Scanning-Sensing Wave Measurements 26 Jan 2010 7 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.This research focuses on the understanding of feasibility and reliability of deterministic reconstruction and (short-time) forecasting of realistic ocean wavefield evolution using phase-resolved wavefield simulations together with radar-sensed wave data. Direct comparisons between the reconstructed and forecasted wavefields are obtained. The validity, efficacy and limitation of the overall approach are evaluated and quantified.


A Direct Simulation-Based Study of Radiance in a Dynamic Ocean 2010 7 pages
Authors:  Dick K. Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The ultimate goal is to develop direct simulation/physics-based forward and inverse capabilities for radiance prediction in a dynamic ocean environment. The simulation-based model will include and integrate all of the relevant dynamical processes in the upper ocean surface boundary layer into a physics-based computational prediction capability for the time-dependent radiative transport.


Phase-Resolved Reconstruction and Forecast of Ocean Wavefields Using Scanning-Sensing Wave Measurements 30 Sep 2009 7 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.To develop and demonstrate an advanced capability of deterministic reconstruction and (short-time) forecasting of realistic ocean wavefield evolution, using scanning wave sensing data and efficient phase-resolved nonlinear wave simulations.


Direct Phase-Resolved Simulation Of Large-Scale Nonlinear Ocean Wave-Field 30 Sep 2009 9 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The long-term goal is to develop a new powerful capability, which is called SNOW (simulation of nonlinear ocean wave-field), for predicting the evolution of large-scale nonlinear ocean wavefields using direct phase-resolved simulations. Unlike the phase-averaged approaches, SNOW models the key physical mechanisms such as nonlinear wave-wave, wave-current, wave-wind and wave-bottom interactions and wave-breaking dissipation in a direct physics-based context.


High-Resolution Measurement-Based Phase-Resolved Prediction of Ocean Wavefields Jan 2009 7 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.Given remote and direct physical measurements of a realistic ocean wavefield, obtain a high-resolution description of the wavefield by integrating the measurements with direct phase-resolved wave computations including realistic environmental effects such as wind forcing and wave breaking dissipation. Inform and guide the measurements necessary for achieving this reconstruction and address the validity, accuracy and limitations of such wavefield reconstructions.


A Direct Simulation-Based Study of Radiance in a Dynamic Ocean Jan 2009 7 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The ultimate goal is to develop direct simulation/physics-based forward and inverse capabilities for radiance prediction in a dynamic ocean environment. The simulation-based model will include and integrate all of the relevant dynamical processes in the upper ocean surface boundary layer into a physics-based computational prediction capability for the time-dependent radiative transport.


Mechanisms of Fluid-Mud Interactions Under Waves Jan 2009 10 pages
Authors:  Robert A Dalrymple; John H Trowbridge; Dick K Yue; Samuel J Bentley; Gail C Kineke; Yuming Liu; Chiang C Mei; Lian Shen; Peter A Traykovski; JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF CIVIL ENGINEERING
The full text of this report is available for sale.The goals of this project are to investigate the mechanisms for wave dissipation in the presence of bottom mud. There are a variety of possible mechanisms for the decay of wave energy as waves propagate over mud; however, they have not all been validated in the field nor quantified in terms of their relative importance and damping rates in the field or the laboratory. Further new mechanisms may be found. ...


High-Resolution Measurement-Based Phase-Resolved Prediction of Ocean Wavefields 30 Sep 2008
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Given remote and direct physical measurements of a realistic ocean wavefield, obtain a high-resolution description of the wavefield by integrating the measurements with direct phase-resolved wave computations including realistic environmental effects such as wind forcing and wave breaking dissipation. Inform and guide the measurements necessary for achieving this reconstruction and address the validity, accuracy and limitations of such wavefield reconstructions.


Rogue Wave Statistics and Dynamics Using Large-Scale Direct Simulations 30 Sep 2008 8 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The long-term goal is to study the generation mechanisms and evolution dynamics of rogue waves using large-scale three-dimensional nonlinear phase-resolved wavefield simulations and to establish the foundation for the development of effective tools for prediction of rogue wave occurrences in realistic ocean wave environments.


Direct Phase-Resolved Simulation of Large-Scale Nonlinear Ocean Wave-Field 30 Sep 2008 9 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The long-term goal is to develop a new powerful capability, which is named SNOW (simulation of nonlinear ocean wave-field), for predicting the evolution of large-scale nonlinear ocean wavefields using direct phase-resolved simulations. Unlike the phase-averaged approaches, SNOW models the key mechanisms such as nonlinear wave-wave, wave-current, wave-wind and wave-bottom interactions and wave-breaking dissipation in a direct physics-based context.


Phase-Resolved Reconstruction and Forecast of Ocean Wavefields Using Scanning-Sensing Wave Measurements 30 Sep 2008 3 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF MECHANICAL ENGINEERING
The full text of this report is available for sale.To develop and demonstrate an advanced capability of deterministic reconstruction and (short-time) forecasting of realistic ocean wavefield evolution, using scanning wave sensing data and efficient phase-resolved nonlinear wave simulations.


Mechanisms of Fluid-Mud Interactions Under Waves Jan 2008 11 pages
Authors:  Robert A Dalrymple; John H Trowbridge; Dick K Yue; Samuel J Bentley; Gail C Kineke; Yuming Liu; Chiang C Mei; Lian Shen; Peter A Traykovski; JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF CIVIL ENGINEERING
The full text of this report is available for sale.Long-term goals: The goals of this project are to investigate the mechanisms for wave dissipation in the presence of bottom mud. There are a variety of possible mechanism for the decay of wave energy as waves propagate over muds; however, they have not all been validated in the field nor quantified in terms of their relative importance and damping rates in the field or the laboratory. Further new mechanisms may ...


A Direct Simulation-Based Study of Radiance in a Dynamic Ocean Jan 2008 8 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The ultimate goal is to develop direct simulation/physics-based forward and inverse capabilities for radiance prediction in a dynamic ocean environment. This direct simulation-based model will include and integrate all of the relevant dynamical processes in the upper ocean surface boundary layer into a physics-based computational prediction capability for the time-dependent radiative transport. Objectives: To include and integrate relevant dynamical processes in the upper ocean surface boundary layer (SBL) into a ...


Studies on Three-Dimensional Slamming on Slender Ships 10 MAY 2007
Authors:  Dick K. Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The focus is on the understanding of the impact phenomenon at relatively low Froude number (Fr = O(1)). In particular, our objectives are to quantify the range of validity of existing asymptotic theories (using the high Froude number assumption, Fr >> 1), and to understand the gravity effect upon the impact process. This study is of direct relevance to accurate prediction of hydrodynamic loads associated with ship slamming and breaking ...


Follow-on Effort of LAMP-QBEM Development: Large Amplitude Motion Program Using Quadratic Boundary Element Method 26 JAN 2007
Authors:  Dick K. Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.The objective is to further develop LAMP-QBEM, an efficient computational tool for the prediction of large amplitude ship motions and hydrodynamic loads. The key developments in this study include handling of complicated ship geometry and the development of a stable, accurate and efficient algorithm for free-surface time integration.


Extension of MINE6D to General Mine-Shaped Bodies Jan 2007 8 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The ultimate goal is to develop an effective physics-based simulation model that is capable of reliably predicting the motion of a three-dimensional mine-shaped object impacting water surface from air and subsequently dropping through water toward the sea bottom. This deterministic model provides the velocity and orientation of mines as the key input for bottom impact/burial prediction and is an essential building block in stochastic model development for mine impact/burial prediction. ...


A Direct Simulation-Based Study of Radiance in a Dynamic Ocean Jan 2006 8 pages
Authors:  Dick K Yue; Yuming Liu; MASSACHUSETTS INST OF TECH CAMBRIDGE CENTER FOR OCEAN ENGINEERING
The full text of this report is available for sale.The ultimate goal is to develop direct simulation/physics-based forward and inverse capabilities for radiance prediction in a dynamic ocean environment. This direct simulation-based model will include and integrate all of the relevant dynamical processes in the upper ocean surface boundary layer into a physics-based computational prediction capability for the time-dependent radiative transport.


Mechanisms of Fluid-Mud Interactions Under Waves Jan 2006 5 pages
Authors:  Robert A Dalrymple; John H Trowbridge; Dick K Yue; Samuel J Bentley; Gail C Kineke; Yuming Liu; Chiang C Mei; Lian Shen; Peter A Traykovski; JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF CIVIL ENGINEERING
The full text of this report is available for sale.The goals of this project are to investigate the mechanisms for wave dissipation in the presence of bottom mud. There are a variety of possible mechanism for the decay of wave energy as waves propagate over muds; however, they have not all been validated in the field nor quantified in terms of their relative importance and damping rates in the field or the laboratory. Implementation of the mechanisms into numerical ...


Total Results: 28 Results per page: