Stewart Technology Associates has over 40 years of hydrodynamic analysis experience. Bil Stewart wrote much of the specification for AQWA.
OrcaFlex is typically the time domain software of choice. In-house vessel motions (STA BARMOT) software also used.
STA SPM for quick quasi-dynamic analysis (equilibrium solution) at SPMs.

How can I benefit from hydrodynamic analysis?

Published by Bill Stewart on April 3, 2016

The ever-increasing search for new and richer deposits of oil has led to oil platforms being constructed further and further offshore. These new offshore platforms have to reach unprecedented depths and have to do so safely with an eye for how the hydrodynamic forces at and below the water's surface will impact rig equipment.

Hydrodynamic analysis is an exciting oil and gas software that's been designed to help improve rig constructions. Here are some of the ways hydrodynamic analysis could benefit your group:

  • Better platform design.
  • The offshore platform is continually being subjected to tidal forces, ocean currents, winds, and wave actions. Such constant pressure against and around its structural components can cause fatigue that may lead to serious failures. Hydrodynamic analysis helps model these forces to help you design better platforms capable of withstanding a given site's elemental forces.

  • Improved riser design.
  • Risers are a critical component of any offshore facility as they are what connects the oil well to the above surface platform and enables extraction to occur. Should risers fail, it could lead to an environmental disaster, workplace injuries, and potentially even a total rig explosion. Using hydrodynamic analysis will ensure that rigs are using the right type of design and components, whether flexible or rigid, for a given worksite. This improves safety, productivity, and reduces wasteful spending.

Are there any Hydrodynamic Analysis technology experts?

Hydrodynamic analysis invariably proves to be a series of complex puzzles requiring painstaking data collection and careful attention to detail. Stewart Technology Associates (STA) earned a spotless reputation for excellent analysis and design work involving hydrodynamics as well as forensic to remodel post-incident recreations. STA continues to lead innovation in the industry after over twenty years of continued service for marine stakeholders. Using the best available oil and gas software, our team of top notch engineers collaborate with your team to produce the best possible solution available. Off shore and marine structures withstand a difficult environment with intense and variable stresses. Hydrodynamic analysis requires expertise that comes with long-term commitment to the marine structure industry.

tewart Technology Associates (STA), the leading marine engineering consultancy firm, offers these services in off shore and marine structures. Some of the major areas of our practice include: riser analysis, anchor analysis, expert witness marine, and wave power systems. We earned one of the very best reputations in the industry, for not only offering highly professional engineering teams, but delivering timely results. If you require hydrodynamic analysis services, contact STA.

What software or tools are required for hydrodynamic Analysis?

OrcaFlex, the most powerful marine technology software available today, is used by more than 170 organizations all over the world to design and analysis marine projects. It is a comprehensive software solution that allows STA to perform a wide range of analyses. A key area of technological innovation for STA is hydrodynamic analysis. Using our 20 years of experience on a variety of hydrodynamic analysis projects, we assist you and achieve quality solutions. With the proper software and experienced engineers, we can overcome any obstacle to develop a workable and satisfactory solution for your hydrodynamic analysis needs. Stewart Technology Associates (STA) is really the best choice to partner with to analyze your hydrodynamic analysis challenges and find the correct solution.

We excel at consultant services in part because we utilize Orcina’s OrcaFlex marine engineering software. With 170 other organizations utilizing this great technology when working on hydrodynamic analysis issues, it must be one of the standards of our industry. After so much experience, we know the required tools:

  1. Top software – OrcaFlex
  2. Top engineers – STA
  3. Open collaboration
  4. Discipline to work the problem

We know you’re ready to work with the best.

  • November 18, 2016

    Marine equipment like oil drilling rigs, oil tankers, oil risers, mooring systems, pump systems, anchors, underwater pipelines, hydroelectric systems and off-shore wind farms must be designed properly to withstand the forces at work in a marine environment, including wave action, tidal forces, high winds, variable temperatures, high pressures and inclement weather. Failure to properly compensate for any of these forces the design of marine equipment can lead to increased maintenance costs, premature failures, environmental damage or even accidents and injuries.

    Hydrodynamic analysis can be used to test the design and function of such equipment in simulated conditions that reliably mimic real-world scenarios, allowing any flaws in the design to be corrected before production and eliminating many of the costs involved in development and testing. It can also be used to evaluate existing designs or to determine an exact point of failure after a marine accident.

    To perform a comprehensive hydrodynamic analysis, experts with plenty of experience in the marine industry are required, as well as specialized software and equipment. It is typically more cost-effective to have a professional perform a hydrodynamic analysis than make the investments in equipment and personnel necessary to do it yourself.

  • How can I benefit from hydrodynamic analysis?

    Published by Bill Stewart on October 13th, 2015

    Hydrodynamic analysis is an amazing tool used to gain insight into the behavior of water and liquids and how they impact ships and other maritime facilities. This centers upon the study of fluid in motion and provides key benefits to people involved in major scale projects like solving complex problems with offshore facilities. The following are just a few of the ways in which you might benefit from hydrodynamic analysis:

    • Building in challenging waters. Offshore companies frequently have to go in harsh conditions, where there can be either extreme depths or shallow, unpredictable waters (like in the Arctic). Hydrodynamic analysis provides accurate predictions of wave loads to enable the safer construction of offshore platforms. This includes giving accurate calculations of needed strength and fatigue capacity. 
    • Offshore pipelaying. Whenever you put down pipes, it's integral to know how the underwater forces will act against their installation and removal. Hydrodynamic analysis is especially beneficial for those needing to know how best to operate a powerful DP vessel through shallow water for safe pipelaying.
    • Harbor and mooring design.  Knowing how tides and special underwater forces will work against set mooring and harbor designs is one of the biggest benefits of hydrodynamic analysis. When putting in a mooring field near an offshore platform, it's the harbor master's responsibility to ensure that lift and drag factors won't cause boats to be pushed into precarious locations. This type of analysis ensures that harbor construction and the installation of a mooring field meets all standards and is capable of withstanding the worst of an area's storms and tidal fluctuations.

Get in touch for Free quote

Web Marketing by Server Side Design, Inc.
Owner of is entirely responsible for all content on this web site. Email