Invitation - PAALM Society Registration & Fliegen '13

Dear PARKians,

There is an invitation for us. Please Find the same in the link below.

Download Invitation (right click > save link as)

Why should we attend this?

Most of us may know that there is a community called “PAALM-PArk Aero ALuMni” jointly started and organized by the Alumnus of our college. It has structured committee people and members with the idea of making all the PARKians of Aero Department to be connected forever.

While we all are interested in looking for new friends in social network like facebook, why don’t  we all, the products of aero department of PARK, join together and continue our friendship? Isn’t it?

That is the reason for PAALM.

Through this, We can share our experience in the aero field, helping each other in many ways, having get together to renew our friendship while in a busy schedule , keeping in touch with all our Friends, seniors and juniors forever ! ! ! . . .

Why this FLIEGEN’13?

Since the first batch passed out of the college, PAALM has been organized by the ALUMNUS alone.

It seems, recently, Aero Dept. of PARK has come across with our PAALM and willing to join us and make some contribution.

To do so, Aero Dept of PARK has decided to dedicate this year symposium,FLIGEN’13 to be an ALUMNI function.

Also they have recognized and registered the website in the name of PAALM. (Every one of us would register our name in this)

Who all are coming (Will anyone come!)? and What are we going to do in this function?

On hearing this college’s decision, most of Alumnus have felt really so happy and eager to attend this.

Chief guest for this FLIGEN’13 is going to be one of us, ALUMNI.

Chair person for the presentations and judges for the events are going to be us, ALUMNUS

Various presentation would be given by us in the area of our specialization which would enhance our knowledge in various domains of our field.

What’s your plan?

A group of people are working on to bring all the birds who flew away from the nest of Aero dept of park and settled in various places. Already, Most of our people who are working in various reputed places like AIRBUS, GE,  ISRO, NAL, HAL, ADA, ADE, etc have accepted to attend this function and eagerly waiting to meet their friends in this function.

Why don’t we all circulate this invitation to our people from first batch to recent one and join together for the first time in our college?!!!

Come on guys/girls,

It’s one day …

Let’s meet …

after long time…

to bring back our memories…

to show our family (who are married) the place where we are from, the guys with whom we spent the unforgettable days…

to see the changes happened in a place where we enjoyed …

Note: Please don't forget to register your presence in the form below.

Regards,

R.Pushparaj [for PAALM Executive Committee]

PAALM Society Registration & Fliegen '13

Dear Aero Alumni of Park,

It gives me immense pleasure in announcing that PAALM (Park Aero ALuMni) is going in the Indian Government records by registering as a society. Yay!!!

The PAALM Executive Committee wholeheartedly invites you to participate and witness the PAALM Society Inauguration and Registration event as part of the Fliegen '13 National Level Technical Symposium on 1st and 2nd March 2013.

Also Fliegen '13 is especially brought to you by Our Own Aero Alumni. So expect loads of knowledge transfer and fun & frolic. Our Alumni will be participants, judges and even the Chief Guest!.

Don't miss it. "The More, The Merrier", so come with the Three Musketeers spirit "All for one, one for all".

PAALM Society Registration
Day: 1st March 2013
Venue: Rajiv Gandhi Auditorium, PCET, Coimbatore.

Fliegen '13
Day: 1st and 2nd March 2013
Venue: Rajiv Gandhi Auditorium, PCET, Coimbatore.

I request you to take a minute and kindly register your presence using the form below.

For more details visit...
http://fliegen13.com
http://paalm.co.in [Yes, we already have a website. Thanks to our Alma Mater.]

Thank You.

Regards,
Alex Nazarene .E [for PAALM Executive Committee]

PAALM Newsletter First Issue

Dear Alumni and Students of Park College,

Happy Independence Day!

On this day of 65th year celebration of Indian Independence, we are proud and happy to bring you the first issue of Park Aero Alumni Newsletter.

Download Newsletter (right click > save link as)

We would like to hear from you about the newsletter. So please let us know what you think in the comments.

We would also like to know more about you. Please enroll in the PAALM database by filling up the below form.


Thank You.

Alex Nazarene .E (for PAALM Newsletter Team)

Wind Turbine Flow Control Using Fluidic Oscillators

by Fayaz Rasheed (2005 - 2009 batch)

This document contains excerpts from “Flow Separation Control on Wind Turbine Blades Using an Array of Fluidic Oscillators,” MPhil Thesis, The University of Manchester, 2012

Scope: The article offers insights into the importance of flow control technology and the associated research involved. Students currently enrolled in engineering programmes can obtain ideas for future projects, engineers in industry can implement this technology for their product and research.

The world today is dependent highly dependent on non-renewable energy resources to meet the everyday needs. The ever growing fuel prices and the depleting resources have put strain on the dependence of the non-renewable resources. In addition to the depletion, these sources of energy cause pollution and damage the environment. 

The future holds for renewable sources of energy such as wind, solar, tidal energy etc. Wind energy is becoming a popular form of usable energy source and uses efficient wind turbines to draw energy. It is predicted that 80% of U.K’s energy will be drawn from wins by 2050 and during the same period countries such as Denmark will be fully dependent on wind energy and totally independent of non- renewable form of energy. It is also predicted that during the same period UK will be able to export energy using these renewable resources.

Increase in the efficiency of wind turbines is critical for the efficient use of wind energy. Researchers around the globe have been studying different methods of increasing efficiency of existing wind turbines including the design and development of wind turbines blades which would increase the overall efficiency of the wind turbines. One of the methods popularly used in wind turbines is the use development of blade for increasing the overall efficiency of the aerofoil.

Separation of flow over the wind turbine blades can cause loss of lift and hence low efficiency. The efficiency of wind turbines can also be increased using flow control technologies. Flow control works in such a way that the separation of flow is delayed, hence increasing the lift and hence the efficiency of the aerofoil.

Figure 1: Separation of Flow from the surface [1]

The achievement of the control of separation by manipulation of the flow field is done with the help of flow control devices. These flow control devices assist in bringing changes in the flow field, which help in the bringing about effective flow control.  The flow control methods can be classified into active and passive flow control methods. Active flow control methods employ the use of moving devices such as fluids or plasma to achieve flow separation control.  Passive flow control devices, on the other hand, has non-moving parts such as turbulators or LEX (Leading Edge eXtension) in order to control flow separation.

Figure 2: Flow control Technologies [2]

Active flow control technologies involve the addition of energy to the flow field. This addition of energy can take the form of addition of steady or unsteady energy inputs without considering the state of the flow field. This type of active flow control is known as predetermined method. The use of piezoelectric actuators, plasma actuators, jet vectoring, post-stall lift enhancement and form drag reduction using oscillatory blowing come under this category.

On the other hand, the use of an input system such as sensor to sense the flow field and provide input to the actuator continuously would be an effective method.  This type of flow separation control method is termed as interactive methods of flow separation control.  The flow in this case can be effectively controlled based on the input from the sensors.  The interactive control can be made possible by a feedback or a feed-forward loop.  Feedback (closed) loop involves sensing the actuated flow behind the actuator and the feed-forward (open) involves sensing the flow ahead of the actuator.  The feedback system can enable the control of energy introduced into the flow.  Flow field variations downstream and upstream can be induced as a result of flow interaction with the sensors and actuators.

The active flow control technologies posses a few advantages as compared to the passive flow control technologies.  The addition of small and localised energy input enables better flow control, which controls the natural stability of the flow. Effective control is made when the control is introduced at a high receptivity region. These high receptive points are the regions where boundary layer transition or flow separation occurs. Another advantage of the control is the ability to control complex and dynamical processes like turbulence production in turbulent boundary layers.  This enables the reduction in skin friction drag and hence the viscous drag where the reduction is proportional to the area covered by the drag.

Fluidic oscillator is a device that can be used as active flow control devices for flow control.  Fluidic oscillator works with the help of coanda effect (the sticking to the wall phenomenon) and produced pulsated flow which turbulises the boundary layer and in turn increases efficiency. The increase Since the fluidic oscillators have no moving parts they can be used for the long term operation. 

Figure 3: A Fluidic Oscillator prototype designed by F. Rasheed at the University of Manchester [2]

A typical fluidic oscillator comprise of an input port, two control ports and two exit ports. A feedback loop is connected to the control ports in order to control the frequency of the exit fluid flow.

The testing of these systems involves experimental tests and to a lesser extent computational tests. The experimental test involves two parts:

1) Characteristic analysis of output flow from the fluidic oscillator using Hotwire anemometry. Here, the exit flow is measured to determine the flow velocity and frequency using a hotwire probe connected to a data acquisition system.

2) The second part involves the wind tunnel tests and the flow is studied with the help of Tuft flow visualisation and Oil flow visualisation.

The development of an array of fluidic oscillators place beneath the wind turbine blades will ensure proper control of flow ensuring high efficiency wind turbines with low maintenance. This technology hence has a promising future.

Figure 4:  Initial wind tunnel test model [3]

A cool simulation of the work involved can be found in the link (or QR code) given below. 

 http://youtu.be/JWEx3zDMHJw

References:

[1] F. Rasheed, “Flow Separation Control on Wind Turbine Blades Using an Array of Fluidic Oscillators,” 2012, MPhil Thesis, The University of Manchester

[2]  Kral  L.D.,  1998,  “Active  Flow  Control  Technology,”  Washington  University, ASME Fluids Engineering Division Technical Brief

Review Meeting on 20 Jan 2007

There was a review meeting on 20-01-2007 in C.V.Raman Nagar, Bangalore. The following is the Minutes of Meeting of the same.

MOM of review meeting on 20-01-2007:

(A) Members Attended:

Harinarayanan(2001)
A.Senthilkumar (2001)
Premkumar.P.S (2002)
G.Senthilkumar (2003)
Alex(2005)
Arunkumar(2005)

(B) Points discussed:

Regarding groups creation for PAALM
Regarding modifications requires on blogspot of PAALM
Regarding webpage creation for PAALM
Regarding PAALM member's election process for every year
Regarding "LOGO" & "BANNER" selection for PAALM
Regarding outing(it's like picnic)for our PAALM family
Regarding communicating all these activities to our college ASAP
Regarding allotting responsibility to the members on various PAALM activities (with backup person)

These are the just bulletins of the review for your quick reference. I will get back to you soon in detail.
If you have your own valuable suggestions on the above please leave the same in the comments.

Waiting for your valuable reply,
Premkumar.P.S (2002)

Posted with regards by...

Alex

(Text edited for the blog post - from original email)

Note: Please add your comments below for the development of the Alumni and this blog. Thank You.

Park Aero Alumni Meet - 06 Jan 2007

PAALM'07

Date: 06 Jan 2007 (Saturday)
Venue: NGO's Club, C.V Raman Nagar, Bangalore.
Time: 6.00 P.M to 9.00 P.M

Park Aero Alumni Meet '07 was successfully launched on 6^th Jan 2007 with a fabulous response from 35 alumni's from 2001 to 2006 batch.

A brief self introduction was made by all Alumni's.

When the clock creped to 7 pm the group rolled into an interactive session in which following points were put up in table.

• Increasing the group's strength
• Arranging Technical discussions & Family outings.
• How can experienced people help fresher's to attain proper job positions?
• Group structure formation

After the discussion panel, the programme continued with New Year celebration by cake cutting accompanied with high tea.

The final & important phase was the selection of office bearers.

PAALM Structure

Chairman - N.Harinarayanan (2001)

Joint-Chairman - A.Senthilkumar (2001)

Secretary – G.Senthilkumar (2003)

Joint-Secretary - Alex (2005)

Treasurer - Premkumar.P.S (2002)

Joint-Treasurer – Krishnaveni (2002)

Active Members:

2002 Batch - Santhoshkumar

Ajitharani

2003 Batch - Sathish.M

RaviAmarnath

2004 Batch - Viswanathan

Avvaihema

2005 Batch - Arunkumar

Jatin

2006 Batch - Santhosh.D

A.M.Karthikeyan

PHOTOGRAPHS

Interactive session of PAALM members

New Year celebration of PAALM team

PAALM Team Snacking

PAALM-Group Photo

2006 Aero stars

2005 Aero stars

2004 Aero stars

2003 Aero stars

2002 Aero stars

Regards

Premkumar (Original Text)
Alex (Blog Post)

Note: Please leave your comments (Good or Bad) below (by clicking the "comments" link) for the development of the Alumni and this blog. Thank You.