Guts of CFD: Transport Equation

What is the utility of a transport equation? What do they achieve? Transport equations form the fundamental language of computational fluid dynamics (CFD). CFD engineers use them to communicate ideas, program CFD software, and diagnose problems with their simulations. But they only work if you understand the language. Today we explain transport equations and the significance of their terms.

Guts of CFD: Navier Stokes Equations

Navier Stokes Equation. Shrouded in mystery and intimidation. Navier Stokes is essential to CFD, and to all fluid mechanics. This equation defines the basic properties of fluid motion. But there is more to gain from understanding the meaning of the equation rather than memorizing its derivation. Today we review Navier Stokes Equation with a focus on the meaning behind the math.

Practical CFD: General Approach

Just fresh out of college, and the boss assigned your first project for computational fluid dynamics (CFD). You are excited. You can’t wait to begin the challenge. You sit down at your computer, start up the CFD software . . . and freeze like a deer in headlights. How to begin? What to do first? Today we discuss the general workflow for a CFD project and highlight some general modeling advice.

CFD Workflow

What happens behind the curtain when the CFD engineer goes to work? What goes into making a CFD simulation? As a project manager, you need to understand the workflow of a CFD project; this helps you plan the project and track budget expenses. When we understand the workflow, we know the right questions and can anticipate project delays.

Which CFD?

Is there anything that CFD can’t do? Practically speaking, we can achieve the result, but you may regret paying for the answer. Several CFD projects involve combinations of different CFD methodologies. Combined together, they evolve into a major project risk. Gain some insight about the risk factors for your next CFD project. Plan a strategy to minimize project risks so that you don’t get caught by combining unknown cost increases.

Imagine Your Ship Without Limits

Demand More from Your Vessel

The maritime market constantly drives to tighter margins, and vessels that hold the status quo go extinct.  Modern owners need to demand more from their vessel.  Greater freedom from of cargo load limits.  Improved crane capacity.  Lighter hulls with lower build cost.  And lower fuel consumption.  If you don’t ask for better performance from your vessel, your competitor will. 

DMS sees the potential to improve ships.  We improve your business by pushing against vessel operating limits.  By conducting our own targeted research and development, DMS cultivates the science to push back boundaries and achieve more.  At DMS, we challenge you to see beyond the current restrictions of your ship.  Instead, ask what vessel capabilities you require to achieve your business goals.  DMS can help you achieve those goals.

Automation Achieves More

DMS believes in continuous improvement for ships, and for our own business.  We employ computer automation to constantly improve efficiency on a wide scope of tasks.  Computer automation can reduce the time of a task from weeks down to days.  When other firms spend time typing at spreadsheets, DMS has a chance to revise the design, and identify improvements.  Let the engineers get more out of your vessel, and let the computers run the math.  Then everyone wins. 

Extraordinary Solutions

Automation does not limit us to just the routine work.  Occasionally, we all want something truly unique.  In these cases, DMS offers advanced engineering tools to break into new territory: 

  • Finite Element Analysis (FEA)
  • Computational Fluid Dynamics (CFD)
  • Genetic optimization of concept designs
  • Composite material engineering

We give you the freedom to imagine a better option.  But you still benefit from our groundwork in efficiency driven design.  Many premium projects include large portions of routine engineering.  We save cost on the routine, leaving you more budget to focus on the extraordinary.

You Call the Shots

At DMS, we work closely with the foremost expert for your vessel:  you.  We don’t force you into one vessel class.  Instead, we design to match your business.  No one else understands your business needs better than yourself.  We invest the time to break out of preconceptions and customize each vessel as the best asset in your business arsenal.  You get to decide what matters, and we listen.

This focus on your needs also eliminates many crew frustrations.  The vessel operators and managers demonstrate an instinctive expertise that we gratefully utilize.  The little details matter.  Sea yarns transform into design suggestions.  Your suggestions turn into design improvements.  Efficient ship designs revolve around efficient crew.  At DMS, the design process revolves around the end user, you

Your Advisor and Partner

DMS develops partnerships with our clients, based on mutual respect.  Long before our clients need our services, we offer free education about ship design topics.  Informed clients are better armed to make the best decisions.  And we listen.  We ask about your business and ships; we anticipate your needs.  Our partnerships grow from respect, not a mere exchange of money. 

And DMS will be ready to help on your next challenge.  We offer engineering services, free educational articles, and more.  Contact us for free general advice to prepare for your future needs.  Or get a quote for your next project to get it done right the first time.  At DMS, every ship deserves a better future. 

Recommendations

Datawave Marine Solutions took the time to understand our project and worked with us to develop an analysis package that fit our budget and our engineering needs. Reports were detailed with high quality graphics, data limitations summarized in plain English, and most importantly – everything was delivered in a timely manner. 

Calendar Marine

I’ve known Nicholas for a few years professionally and he is extremely knowledgeable in many aspects of Naval Architecture, FEA, CFD, programming and engineering in general.  Every time I have spoken to him I learn something new, so he is constantly improving his skills (if you follow him you learn from his posts).  If I were looking for a consultant in his field, I’d definitely hire him.

Dan Combest

Sr. CFD Engineer, Manager, Engys