Stephen R. Turnock

ORCID: 0000-0001-6288-0400
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Ship Hydrodynamics and Maneuverability
  • Maritime Transport Emissions and Efficiency
  • Fluid Dynamics Simulations and Interactions
  • Spacecraft and Cryogenic Technologies
  • Cavitation Phenomena in Pumps
  • Underwater Vehicles and Communication Systems
  • Wind Energy Research and Development
  • Maritime Navigation and Safety
  • Fluid Dynamics and Vibration Analysis
  • Hydraulic and Pneumatic Systems
  • Fluid dynamics and aerodynamics studies
  • Computational Fluid Dynamics and Aerodynamics
  • Fluid Dynamics and Turbulent Flows
  • Aerodynamics and Fluid Dynamics Research
  • Wind and Air Flow Studies
  • Sports Performance and Training
  • Structural Integrity and Reliability Analysis
  • Wave and Wind Energy Systems
  • Hybrid Renewable Energy Systems
  • Engineering Applied Research
  • Aerospace Engineering and Energy Systems
  • Electromagnetic Launch and Propulsion Technology
  • Adaptive Control of Nonlinear Systems
  • Sports Dynamics and Biomechanics
  • Underwater Acoustics Research

University of Southampton
2016-2025

Ministry of Energy
2022

Mineral Resources
2022

National Oceanography Centre
2010

IQE (United Kingdom)
2008

Institution of Mechanical Engineers
2007

Massachusetts Institute of Technology
1989

IIT@MIT
1988

Recent targets have increased pressure for the maritime sector to accelerate uptake of clean fuels. A potential future fuel shipping is hydrogen, however there a common perception that volume requirements this are too large deep sea shipping. This study has developed range techniques accurately simulate hydrogen case vessel. Hydrogen can use cells, which achieve higher efficiencies than combustion methods, but may require battery hybrid system meet changes in demand. series novel models...

10.1016/j.ijhydene.2024.05.054 article EN cc-by International Journal of Hydrogen Energy 2024-05-11

Microvideo observations of glaze ice accretions on 1-in-diameter cylinders in a closed-loop refrigerated wind tunnel were obtained to study factors controlling the behavior unfrozen surface water during accretion. Three zones noted, each with characteristic roughness. The effect substrate thermal and roughness properties was also studied. contact angle hysteresis found increase sharply at temperatures just below 0 C, explaining high resistance motion beads observed accreting surfaces. Based...

10.2514/3.45735 article EN Journal of Aircraft 1989-02-01

A fixed 25deg deadrise angle wedge is allowed to fall from a range of heights into static water. high-speed (up 5000 frames s?1) camera used visualize the impact and subsequent formation jet flows droplets. Unsteady pressure measurements at six locations across surface are measured 10 kHz. Two accelerometers (10g, 100g) mounted above apex measure vertical acceleration. purpose-built position gauge analysis synchronized video allows motion be captured. The synchronization these data with...

10.1088/0169-5983/42/3/035509 article EN Fluid Dynamics Research 2010-03-16

The missions being proposed for autonomous underwater vehicles (AUVs), by both marine scientists and industry, are becoming increasingly complex challenging. In order to meet these demands the next generation of AUVs will need be faster, operate longer durations, more manoeuvrable than existing vehicles. It is therefore vital that hydrodynamic forces moments acting on a self-propelled manoeuvring AUV can predicted accurately at initial design stage. achieve this, use...

10.1243/14750902jeme199 article EN Proceedings of the Institution of Mechanical Engineers Part M Journal of Engineering for the Maritime Environment 2010-08-11

Abstract A sliding mode heading control system is developed for overactuated, hover‐capable autonomous underwater vehicles (AUVs) operating over a range of forward speeds. simplified switching function introduced, and simulation studies are proposed accordingly. The results with this novel show significant improvement in the chattering problem when compared to other conventional candidates. Studies on sensitivities hydrodynamic parameter uncertainties presented, parameters that have major...

10.1002/rob.21766 article EN Journal of Field Robotics 2017-11-13

Autonomous Underwater Vehicles (AUVs) encounter significant energy, control and navigation challenges in complex underwater environments, particularly during close-proximity operations, such as launch recovery (LAR), where fluid interactions wake effects present additional navigational energy challenges. Traditional path planning methods fail to incorporate these detailed structures, resulting increased consumption, reduced stability, heightened safety risks. This paper presents a novel...

10.48550/arxiv.2502.01918 preprint EN arXiv (Cornell University) 2025-02-03
Coming Soon ...