Dynamic Mesh Analysis for Wind Turbine Blades

Click For Summary

Discussion Overview

The discussion revolves around the challenges and methodologies related to dynamic mesh analysis for wind turbine blades and other applications, including boats and beams. Participants share their experiences and seek guidance on using software tools like FLUENT and NASTRAN/PATRAN for their projects.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related
  • Debate/contested

Main Points Raised

  • One participant expresses uncertainty about starting a dynamic mesh analysis for wind turbine blades and seeks advice on initial steps and necessary data.
  • Another participant suggests using NASTRAN/PATRAN as an alternative to FLUENT, highlighting its user-friendly, menu-based interface.
  • A different participant offers to assist with FLUENT, mentioning their experience with dynamic meshes in combustion simulations.
  • One participant outlines a proposed approach for starting the analysis, including drawing a 3D model, importing it to Gambit, and considerations for meshing, particularly regarding the rotating and non-rotating parts of the blades.
  • Another participant provides specific advice on using boundary layers in Gambit, including disabling autosmoothing and the straightforward nature of the boundary layer meshing options.
  • Several participants express similar needs for step-by-step instructions for various applications, including analyzing a boat in a river and a fluctuating beam.
  • One participant inquires about exporting files from Rhino to FLUENT, indicating a need for compatibility between software tools.
  • Another participant asks about creating compiled User-Defined Functions (UDFs) for FLUENT, expressing confusion about the process and its integration with Gambit.
  • There is a reiteration of the suggestion to use NASTRAN/PATRAN, with a note that it may not be suitable for aerodynamic problems that require finite volume methods.

Areas of Agreement / Disagreement

Participants generally express a lack of consensus on the best approach to dynamic mesh analysis, with multiple competing views on software tools and methodologies. There is no clear resolution to the various questions and challenges raised.

Contextual Notes

Participants mention specific software tools and techniques, but there are limitations in the discussion regarding the assumptions made about the software capabilities and the specific requirements for different applications. Some steps and processes remain unresolved or unclear.

Who May Find This Useful

Students and professionals interested in dynamic mesh analysis, particularly in the context of fluid dynamics and mechanical engineering applications, may find this discussion relevant.

haa72
Messages
21
Reaction score
0
Hello , I am a 4th year ME ,I have as an Final year project to do a dynamic mesh analysis for the blades of a wind turbine ! unfortunately , i don't know how to start since it is the first time I work with the Dynamic mesh . I practiced ont he Fluent softwares when I took the CFd course, so i have an experience with FLUENT. can you please tell me how should i start and whta are the best things an data that i should take! Please i need ur help and i am waitin ur response.
 
Engineering news on Phys.org
I have never used FLUENT, but you could create a mesh and analyze it using NASTRAN/PATRAN (a finite element program). It's menu-based program, so there's really no code-writing involved -- very user-friendly!
 
I'm very good using fluent 6.1. if ur not a spammer, just add me on the msn i will help you. I'm a graduated engineer, my senior project included a simulation of combustion in an engine using Dynamic meshes :)..lucky you
 
Hello

Hello,
Thanks for your reply , I will add u soon to MSN .
i think that i will start by the following steps :
1-Drawing the 3D
2-importing to gambit
3-Really don't know how to start the meshing for this problem , am wondering since there is two parts one that will rotate an dother not rotating (the blades).
also i think that i must use a fine mesh near the blades and coarse in the other place.
also what about boumdary layer in fluent , do uhave any clue what should i use
waiting ur reply
 
using boundary layers

Well before u use this option u have to delete autosmoothing from Gambit..to do this Edit-->Defaults, then put autosmoothing to a value of zero.
Then after u open the boundary layer meshing first, the options are pretty straight forward, there are drawing that gambit will show u to explain the options ur gonnna fill up, so its pretty straight forward till here. then u mesh the volume
 
I need the step by step instruction to analysis a boat in river ,by the Dynamic Meshing method. waiting ur reply
 
same problem here..
can i export rhinocheros file to fluent?
 
my email njmiliangchuan@yahoo.com.cn

:smile:
 
Hi all. I also need the step by step instruction to analysis a fluctuating beam,by the Dynamic Meshing method. The beam is fixed at one end and the other end is simply moving up and down. this is my first time I'm using dynamic mesh. If someone can help, that would be great for me.
 
  • #10
hi eaboujaoudeh, i saw this thread and i was wondering if i can add u on msn cause I am having some trouble using dynamic meshing to analyze a 2-stroke engine. thank u
 
  • #11
also have a same problem.im modeling a savonius turbine.

do you now how to create compiled UDfs that u insert in Fluent?do u create it in Gambit or? sorry,im new at this...
 
  • #12
piano_girl said:
I have never used FLUENT, but you could create a mesh and analyze it using NASTRAN/PATRAN (a finite element program). It's menu-based program, so there's really no code-writing involved -- very user-friendly!

If he's dealing with aerodynamics, NASTRAN may difficult everything, because the problem must be solved using finite volumes rather than finite elements.
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
12K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
7K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
Replies
6
Views
2K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 4 ·
Replies
4
Views
13K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 4 ·
Replies
4
Views
2K