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Vortex Wakes Of Aircrafts

RRP $574.99

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The book presents methods of mathematical modeling of vortex wakes of aircraft in flights at high altitudes and close to the ground at take-off-landing regimes. The modeling is based on an extensive application of the method of discrete vortices in aircraft flights at high altitudes and on a conjugation of this method with the integral method of predicting the turbulent boundary layer which is produced at the secondary wall transversal flow induced by the aircraft vertex system at take-of-landing regimes. In this latter case an interaction between the vortex wake of aircraft and the secondary vortices generated at boundary layer separations is taken into account.

The authors consider separately methods of modeling the near and far vortex wakes of aircrafts with turbojets and air propellers and they present the results of predicting vortex wakes of a series of domestic and foreign aircrafts. The effect of number of factors is taken into account in these cases: turbulence and atmosphere stratification, presence of side wind at take- off-landing regimes.

The computer time consumption while modeling the vortex wakes according to the proposed method is 3 - 4 orders less than in the case of using the well-known numerical methods.

The non-linear non-stationary mathematical model of light aircraft movement when they enter the vortex wake of a heavy aircraft with a description of possible catastrophic consequences for the light aircraft is considered separately. A comparison between the prediction data and the experimental results is given.

The book is intended for researchers and engineers, as well as for lecturers, post-graduate and undergraduate students.


Etsy Success - How To Make A Full-time Income Selling Jewelry, Crafts, And Other Handmade Products Online (mogul Mom Work-at-home Book Series)

RRP $35.00

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"Turn Your Passion for Making Handmade Products and Crafts into a Thriving Online Business!"

Handmade products are hot! People everywhere love to buy unique, one-of-a-kind items and the good feeling that comes from supporting the creators who made them.

Etsy.com is the number one online destination for people wanting to purchase handmade products and crafts. Believe it or not though, simply selling great products on Etsy isn't enough to be successful. With many talented people selling their items there, it's easy to get lost in the crowd.

But here's the good news...

There are people making good money on Etsy and if you want to be one of them, this book will help you. It contains a "marketing plan" designed just for you, with step-by-step instruction that will show you exactly what to do in order to have a successful, thriving Etsy business.

Do you make any of the following items?

Soap
Jewelry
Clothing
Art
Candles
Beauty Products

If so, you want this book! It contains everything you need to know about making money on Etsy. You'll take your passion from a "hobby" in the corner of your living room to a real business, with customers from around the world.

Not on Etsy yet? Don't worry! This book will show you how to set up an eye-catching store in just minutes! Already on Etsy? Get ready to increase your sales!

Running an online store on Etsy is the perfect job opportunity for mothers, since you can run the entire business from your home, spend more time with your children, be your own boss, and make a great income doing something you love!

If you're ready to make money on Etsy, get this book today.


25 Crafts For Christmas

RRP $12.99

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A craft for every day of Advent, or just to keep children entertained in the run up to Christmas

Young crafters can make decorations, their own Christmas cards, and a variety of gift boxes and trimmings using simple materials and following just a few steps. Each activity is wonderfully simple with only a few steps to each craft and will give satisfying results in minutes-or hours can be whiled away with glittery embellishments. Crafts include festive paper holiday wreaths, felt elf boots, frosty forest greeting cards, many different tree ornaments, and a Christmas village with doilies for snowy roofs.



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