Surface Ship Hydrodynamics and Dynamics

The goal of the surface ship hydrodynamics and dynamics research area is to develop increased understanding and predictive simulation capabilities of nonlinear interaction of surface ship and ocean environment, free surface turbulence, surface ship dynamics, and hydrodynamic loads in relevant operation environment. The scope includes:

  • A combination of theoretical, computational, and experimental efforts
  • Development and utilization of advanced instrumentation and facilities
  • Development of multi-fidelity models including physics-based simulation capabilities, physics-informed learning models, and data-driven models with quantifiable uncertainty
  • Knowledge to improve ship capability, operability, and survivability of naval platforms operating in relevant ocean environments for design, analysis, and operation purposes
  • Understanding, prediction, and control of the complex, unsteady hydrodynamic phenomena associated with the interactions of a ship or multiple ships and the ocean environment

This work supports the Navy’s interest in advanced sea platform performance science and technology (S&T), advanced sea platform survivability S&T and naval engineering.

Research Concentration Areas

The primary focused research areas are surface ship unsteady turbulent wake, nonlinear ship dynamics (motions, stability, and maneuvering), and hydrodynamic loads in relevant ocean environment, including:

  • Understanding, prediction, and control of the complex, unsteady hydrodynamic phenomena (such as wave breaking, turbulence, etc.) associated with the interactions of naval platforms and the ocean environment, especially the 3-D free surface turbulence flow in a highly variable density flow of naval surface ship in the near wake region.
  • Accurate prediction tools for platform maneuvering performance in high sea-states to support future designs and current platform operational tactics
  • Prediction of the nonlinear behavior, extreme motions, and hydrodynamic loads including slamming, wave impact, deck wetness, etc. in high sea-states using deterministic and probabilistic methods
  • Utilization of theoretical, computational, and experimental methods to develop modeling capability and physical understanding
  • Development of physics-based reduced order models with range of applicability and quantifiable uncertainty

Research Challenges and Opportunities

  • Development and utilization of fast and accurate multi-fidelity prediction methods with quantifiable uncertainty for design, analysis and operational guidance
  • Development of a “full physics” simulation capability for simulating a ship in extreme sea conditions at all headings and speeds.
  • Development of high resolution experiments to determine flow physics and to inform modeling
  • Generation of reliable scale-up rules from laboratory experiments to full scale
  • Identification of controlling parameters that represent key physical phenomenon
  • Increased understanding of complex interaction between ships and severe ocean environments
  • Modeling of dynamics 3-D free surface turbulence in a highly variable density flow of surface ship wake
  • The effects of ship dynamics, inflow from upstream, and ocean environment on turbulence modeling in the wake region

Program Contact Information

Name: Dr. Woei-Min Lin

Title: Program Officer

Department: Code 331

Email for Questions: woei-min.lin@navy.mil


How to Submit

For detailed application and submission information for this research topic, please see our Funding Opportunities page and refer to broad agency announcement (BAA) No. N00014-21-S-B001.

  • Contracts: All white papers and full proposals for contracts must be submitted through FedConnect; instructions are included in the BAA.
  • Grants: All white papers for grants must be submitted through FedConnect, and full proposals for grants must be submitted through grants.gov; instructions are included in the BAA.

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