Experimental study of aerodynamic characteristics of airfoils using
1. Experimental study of aerodynamic
characteristics of Airfoils using Different
Shaped Dimples
Supervised By:
Dr. Mohammad Mashud
Professor,
Department of Mechanical
Engineering, kuet.
Presented By:
Name : Rubiat mustak
Roll: 0905097
4th Year 1st Term
Khulna University of Engineering & Technology
Khulna -9203,Bangladesh
2. Introduction
From the beginning of human race, man has always dreamt of flying and on
December 17, 1903 Wright brothers gave human race new wings and
hoped for continuous endeavour in this field. Now we have progressed to
great extent in air but still after so much has been done there are certain
constraints binding us.
Freedom in the air is still not complete. Continuous attempts are being
made to increase freedom in air.
From commercial jetliners to supersonic fighters, there has been a
exponential growth in the aviation industry. Still there is vast scope for
further improvements.
Here is a study that makes one such attempt. The surface modifications
which are being considered in the given study are dimples of types and
shapes.
3. objectives
The objective of this work is to observe the change in
aerodynamic characteristics of an airfoil by applying certain
surface modifications in form of dimples.
4. Model construction
Contributions In order to verify the proposed idea, an airfoil
profile needed to be selected on which whole study will be
based. All the experiment are carried out on NACA 4415 .
NACA 4415 is a cambered airfoil as shown in Figure-1.
symmetrical airfoils produce less lift than cambered airfoils.
models will be made by wood.
8. Work Plan
Construction
of airfoil
[with in 23Weeks of
beginning]
Perform wind
tunnel
experiment
And take
required data
[with in 1-2
weeks after
constructing
the airfoil]
Perform all
necessary tasks
for obtaining
the required
result and
complete the
paper
[with in 23weeks after
taking the
data]
Work plan for the thesis project
9. Parameters to be measured
Coefficient of lift
Coefficient of drag
Coefficient of moment
lift to drag ratio(L/D).
