The Innovative CFD FAQ

Where I attempt to answer the most commonly asked questions from readers

Why create an Innovative CFD FAQ (Frequently Asked Question) page? While I would dearly love to be able to answer every inquiry to the site personally (like I used to be able to), I am forced to face the fact that, at least for now, work is far too busy for that to happen. So, as a second-best solution, I am going through all the questions that have been asked and assembling them here, along with my best attempt at an answer. The questions are split (approximately) by topic to make it easier to find what you are looking for.

General CFD Questions
In this section, I answer general questions about CFD. Currently, the following questions are addressed:

  • What can CFD do for [any specific industrial process]?
  • Could you explain grid generation/CFD/fluid dynamics to me?


Specific CFD case questions
In this section, I address questions that people have asked about specific configurations. Currently, the following questions have been responded to:

  • Could you write a page about [a very specific flow configuration]?
  • I'm working on a [specific project/dissertation/contract] using CFD, and I'm running into problems. What am I doing wrong?
  • In grid refinement, how should I refine the grid? Is there any specific rule for this?
  • I'm running a [specific case] and I get good agreement at low angles of attack, but at higher ones, my results are really off. Why is this, and what can I do about it?


Turbulence modeling questions
In this section, I address questions that people have asked about specific configurations. Currently, the following questions have been responded to:

  • How can I compare the results of a steady-state RANS simulation with those from a Large Eddy Simulation (LES)?
  • What turbulence model should I use for [a specific flow configuration]?


Flow solver related questions
Next, I respond to the many questions I've received regarding CFD flow solvers (free and otherwise):

  • Can the Wind-US flow solver be used to model [some incompressible flow problem]?
  • I need free CFD software that can model [some incompressible flow problem]. What do you recommend?
  • I'm trying to use [some commercial flow solver]; can you help me figure out the settings I should use?
  • I need a CFD package to solve [some specific class of problem]. What solver should I use?


Work-related questions
I get a lot of questions about working as a CFD professional and how to find work. Here are some thoughts regarding some of the most common inquiries. Issues addressed so far:

  • We are looking to work with a CFD consultant on [a problem of interest]. Would you be interested in working with us?
  • Who hires CFD engineers?
  • Can you help me get a job in CFD?


Need More Information?

If you are interested having me support your organization's use of CFD or would like custom capabilities developed for it, let me know.

Or maybe you have a question you think might make a good addition to this collection. If so, send it to me. It may take a while for me to get to it, but I do go through all the feedback I get from this site, and a lot of the ideas for content have come from reader suggestions.

Or, when you are finished here, you can return to the Innovative CFD home page and browse one of the other topics.

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