Aerodynamics of Diamond planform wings

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Discussion Overview

The discussion revolves around the aerodynamic characteristics of diamond planform wings, focusing on the search for research materials and methods to determine dynamic damping derivatives for aircraft without direct wind tunnel measurements. The scope includes theoretical and applied aspects relevant to aerodynamics and flight stability.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant seeks detailed research papers and literature on the aerodynamic characteristics of diamond wings for an assignment and thesis.
  • Another participant provides a link to the AIAA website, suggesting that searching for "Diamond planform" may yield useful references.
  • A participant notes that finding dynamic derivatives analytically is challenging and suggests that while there are estimation methods, they should be used cautiously. They recommend a specific book for further reading.
  • Another participant suggests using a vortex lattice method, specifically the Tornado software, which can calculate stability derivatives.

Areas of Agreement / Disagreement

Participants generally agree on the difficulty of determining dynamic derivatives analytically and acknowledge the existence of estimation methods. However, there is no consensus on the best approach or resources available for the aerodynamic characteristics of diamond wings.

Contextual Notes

Limitations include the lack of consensus on reliable methods for estimating dynamic derivatives and the dependence on specific literature for further exploration of the topic.

Who May Find This Useful

Researchers, students, and professionals interested in aerodynamics, flight stability, and aircraft design may find this discussion beneficial.

PujaSunil88
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Heya Everybody! I was searching for papers on the Aerodynamic characteristics of diamond wings, I mean detailed research papers/ literatures/ E-books...as a part of my assignment cum Thesis. Unfortunately, I could'nt find many. If anyone of you could please guide me as to where I will be able to find materials ( research papaers/literartures/ E-books/any related material), I would be extremely grateful.

Also, is there a method to find out the dynamic damping derivatives for an aircraft ( for eg: variation of Cm or Cn with respect to rate of change in - angle of attack, flight path angle,control surface deflection, or any other related parameter ) from static parameters( for eg" Cm or Cn obtained from wind tunnel results). I want to find out dynamic damping derivatives without actually measuring it from the wind tunnel...If there are literatures/ E-books or Research papers or anything related to the topic, please do let me know.
 
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Here is a link to the AIAA website.

http://www.aiaa.org/content.cfm?pageid=2

I just typed in "Diamond planform" into the Publication search engine and a couple of potentially useful references came up. If you can get a hold of those papers they will likely give you even more references.
 
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@RandomGuy88: thanks a lot for the info.
 
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Finding out dynamic derivatives is no easy task by any means and strictly speaking cannot be done analytically with any reliable accuracy. However there are methods to estimate them (use with caution). As far as e-books goes I have no idea, however the book "Flight Stability and Automatic Control" by Robert C. Nelson details one of these methods.
 
Hey! thanks a lot both of you...
 
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