PaperApplication of the SIMPLE Algorithm to a Manufactured Subsonic Flow
21st Numerical Towing Tank Symposium (NuTTS 2018), Cortona, Italy
30 Sep 2018
In general, numerical flow simulations in naval and offshore industries consider the fluids to be incompressible, i.e., with constant density. ...
cfdcfd/simulation/desk studies
PaperCode Verification exercise for 2D Poiseuille flow with non-Newtonian fluid
21st Numerical Towing Tank Symposium (NuTTS 2018), Cortona, Italy
30 Sep 2018
Safe navigation in port and waterways is ensured by setting a minimum distance between the ship’s keel and the bottom, known as the under keel ...
cfdmanoeuvringnautical operationsauthorities and regulatorscfd/simulation/desk studies
PaperAssessment of RANS Transition Models
21st Numerical Towing Tank Symposium (NuTTS 2018), Cortona, Italy
30 Sep 2018
Many naval and aeronautical applications deal with flows which occur at Reynolds numbers that are typically larger than 107. Under these conditions ...
cfdcfd/simulation/desk studies
PaperOn the Role of Iterative Errors in Unsteady Flow Simulations
21st Numerical Towing Tank Symposium (NuTTS 2018), Cortona, Italy
30 Sep 2018
Simulation of (statistically) unsteady flows is no longer an exceptional task in Engineering applications. For wall bounded (turbulent) flows at ...
cfdcfd/simulation/desk studies
PaperEvaluation of a Coupled Level Set and Volume of Fluid Method for Unstructured Meshes
21st Numerical Towing Tank Symposium (NuTTS 2018), Cortona, Italy
30 Sep 2018
A model for free surface flows has been developped for fully unstructured CFD solvers, coupling a Volume of Fluid (VOF) method (Hirt et al. 1981) ...
cfd/simulation/desk studiescfd
PaperImplementation and Verification of an Explicit Overset Grid Method
21st Numerical Towing Tank Symposium (NuTTS 2018), Cortona, Italy
30 Sep 2018
The design of modern ships capable of achieving complex manoeuvres and handle dynamic ocean environment requires a precise understanding of the flow ...
cfdcfd/simulation/desk studies
PaperMinimising ship afterbody wave making using multifidelity techniques
32nd Symposium on Naval Hydrodynamics, Hamburg, Germany
5 Aug 2018
A system for wave resistance minimisation of ship hull forms has been developed before. It uses surrogatebased global optimisation, with hull form ...
cfd developmentcfd/simulation/desk studiesresistance and propulsion
PaperRecent Developments in Computational Methods for the Analysis of Ducted Propellers in Open Water
32nd Symposium on Naval Hydrodynamics, Hamburg, Germany
5 Aug 2018
This paper presents an overview of the recent developments at IST and MARIN in applying computational methods for the hydrodynamic analysis of ...
resistance and propulsionpropeller and cavitation
PaperViscous flow simulations at high Reynolds numbers without wall functions - Is y+≃1 enough for the near-wall cells?
Computers and Fluids
15 Jul 2018
The Reynolds-Averaged Navier Stokes equations supplemented by eddy-viscosity models are still the most common mathematical model for the simulation ...
resistance and propulsionmodel testing
PaperA Contribution for the Assessment of Discretization Error Estimators Based on Grid Refinement Studies
Journal of Verification, Validation and Uncertainty Quantification
3 Jul 2018
Grid refinement studies are performed in sets of geometrically similar structured grids, permitting an unambiguous definition of the typical cell ...
PaperTowards guidelines for consistent wave propagation in CFD simulations
19th International Conference On Ship & Maritime Research (NAV2018), Trieste, Italy
22 Jun 2018
Accurate prediction of structures and vessels motion at sea is critical to guarantee the safety and comfort of passengers on board, but also to ...
cfdwaves, impacts and hydrostructural
PaperQuantifying the Uncertainty of the Crabbing Capability
37th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2018), Madrid, Spain
17 Jun 2018
Crabbing is a critical manoeuvre that requires all of the ship’s propulsors to counteract environmental forces. It is a complex hydrodynamic ...
time-domain simulationsmanoeuvringnautical operationscfd/simulation/desk studies
PaperWave Buoy Performance in Short and Long Waves, Evaluated Using Tests on a Hexapod
37th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2018), Madrid, Spain
17 Jun 2018
Offshore wave conditions can be measured using wave buoys, which are generally designed for wind waves. Longer waves (swell or bound second-order ...
wave measurementsfull scaleoffshorewaves & motionsseakeeping
PaperValidation Exercises for a Free Falling Wedge Into Calm Water
37rd International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2018), Madrid, Spain
17 Jun 2018
This paper presents the assessment of the modelling error (Validation) of a Navier-Stokes solver using Volume of Fluid (VOF) and moving grid ...
waves, impacts and hydrostructuralcfd developmentcfd/simulation/desk studies
PaperModel tests and numerical analysis for a floating mega island
37th International Conference on Ocean, Offshore & Arctic Engineering (OMAE 2018), Madrid, Spain
17 Jun 2018
About 70% of the earth’s surface area is covered with water. Due to the sea level rise and increasing population in coastal areas we need to use our ...
waves, impacts and hydrostructurallife at sea