Drug testing

Reducing Wake Turbulence and Wing-Tip Vortices Using Contoured Winglet Designs

Some Taiwan scientists have figured out a way to reduce the wake from ferries crossing the harbor, most harbors and lakes, many rivers have speed limits to reduce the wake which cases hardships accidents, inconvenience and damage to other craft. We have all heard of the gentleman who ended up between the dock and hull of a large boat and was crushed to death, so obviously it is a serious matter. Yet speed on the water saves time and means greater profits more movement in less time means more efficiency. In places like Taiwan with the insanely high populations, there are serious needs getting all the people where they need to be.

By redesigning the hulls in a wavy fashion they are able to reduce significantly the wake. Mr. Cheng-Hung Huang has come up with a wavy design, which reduces wake. Here is the design.

http://www.newscientist.com/data/images/ns.../99996368F1.JPG

Here is the premise:

http://else.hebis.de/cgi-bin/sciserv.pl?co...87_atihcphfbcgm

Now then let's take this concept and apply it to a winglet on a heavy airliner, cargo aircraft or military troop transport. We know the winglets help reduce drag and wing tip vortices and wake turbulence, which is quite a violent disruption, which moves a lot of air. For instance if you google NASA's LARC project you will see the studies done.

http://www.dfrc.nasa.gov/Gallery/Movie/B-7...EM-0073-01.html

http://www.dfrc.nasa. gov/Gallery/Movie/C-5...EM-0085-01.html

Now then in the Mr. Cheng-Hung Huang model the researchers designed their Ferry Catamaran hulls for both deep water and for shallow water. This would work for both dense and less dense air, which takes into consideration the changes in altitude for the aircraft. Now realize the airfoil is different than the hull in that the hull of a ship is going through fluid that is 750 more dense than air, yet the same principles do apply in limited sense. So even if the wavy design is somewhat less exaggerated on the winglets of an aircraft the savings in wing tip vortices could be significant and therefore more efficient flight.

The hull design in this case is a perfect compromise shape for efficiency between the salt water and fresh water since the two have different densities. Instead of a normal sleek hull designs they have designed a hull with bizarre contours at specific intervals. The peaks are set at 24, 68 yards from the bow with the trough 44 yards. These very same techniques in fluid dynamics occur in aerodynamics

The research would indicate that as long as the dimensions were proportional the concept could be used on any length simply by adjusting the position of the convex peaks and concave troughs in proportion to the hull length. So if the winglets on an A340 or a C-17 are 68 inches then the trough would be at 44 inches. As the air flows across the wing up onto the winglet. For the fuselage of an aircraft the same thought could be used. And you thought those old B-52's needed to be re-skinned just because they have 500,000 TT Airframe hours and are wavy and worn out? No actually they may actually work better that way to reduce induced drag and with a little modification work exceptionally better, interesting no doubt. Should intakes of jet fighters be contoured along this concept? To reduce fan blade ware and tear and smooth airflows to help produce maximum smooth and sustained inflows and thrust? The answer is yes. Most likely the compression and Bernoulli principle will not effect this only help it flow through by allowing the air to hug the surface and lower the boundary area. If we learn that such an effect compresses the air to a greater degree, while allowing it to flow, then that information is equally as valuable in hypersonic intakes and engines.

Wing tip vortices are so violent and move so much air we had even considered the wind energy potential to power up runway lights or blue tax lights. You may want to google that for a recent study which was done.

We should look into these ideas for aircraft fuselages and tail sections, as well as UAVs, smart munitions and airships. Is this something that should be taken into consideration on the 7E7? We know that wing tip vortices and wake turbulence have sound. Sound causes a signature, if we wish to reduce the signatures of sound the tops of the stealth UAVs might wish to have the wavy surface? A UUV or Submarine would also benefit by reducing it's acoustic signature since a submarines safety depends on not being able to be detected. There is much benefit to this concept for the insides of engine intake tubes to reduce harmonic damage, increase airflows and the friction associated with the boundary layer for temperatures. It also makes sense for the outside of a submarine hulls, Torpedoes, 18 Wheeler tanker trucks, blimps, nose cones on bullet trains, propeller blades or aircraft fuselages.

"Lance Winslow" - If you have innovative thoughts and unique perspectives, come think with Lance; www.WorldThinkTank.net/wttbbs

limousine chicago service
In The News:

A Land Divided - A World United - The Panama Canal

It has been called "the big ditch", "the bridge between... Read More

5 Steps to Crime Prevention at your Marina

Spending the day or weekend on your boat is one... Read More

Silversea Cruises! Committed To Elegance, Luxury, And Gracious Hospitality

Committed to elegance, luxury and gracious hospitality, Silversea Cruises is... Read More

Six-Star Cruising on Luxury Cruise Lines

A luxury cruise is just what the name implies, a... Read More

Carnival Cruise Expert Guide

A carnival cruise is one of the best-loved types of... Read More

Cruising Glacier Bay

You can watch movies about it, you can hear about... Read More

Carnival Cruise - A Perfect Holiday - Rock and Rolling with Carnival Cruise

If you want to have fun for one low price,... Read More

Caribbean Cruise: An Enchanting Experience

A Caribbean cruise is the world's most popular cruise. The... Read More

Boat Winterization Services and Charges, Part II

Boat Winterization Services and Charges, Part IIIf you own a... Read More

Robotic Boat Cleaning is Here, Soon it will be Affordable

Robotic Underwater ship cleaning robotic unit, the M3500 Robotic System... Read More

The Fabulous New Caribbean Princess Ship

The magnificent Caribbean Princess ship is the new queen of... Read More

High-School Reunion Time? Host Yours on a Yacht!

Sometimes it can be difficult to round up the old... Read More

Short Cruises - The Perfect Match For First Time Cruisers

Would you like to try a cruise, but aren't sure... Read More

Luxury Cruises On The Mediterranean

A classic Mediterranean cruise visits major port cities located on... Read More

Taking a Deaf Cruise

Deaf and hearing impaired individuals are no different from anyone... Read More

Taking A Paddleboat Cruise

In May my husband and I took a wonderful steamboat... Read More

Places to See On Your Alaska Cruise, Welcome To Juneau!!

Well my sister in law is in town this week... Read More

Artic Tours

Take an Arctic Tour by flying north of Fairbanks to... Read More

Diving Philippines is Impressive, Varied, and Spectacular

Scuba diving Philippines does not get any diverse, anywhere in... Read More

Philippines Surfing if You Want to Miss the Crowds

Philippines surfing is not quite a destination that would conjure... Read More

Those Ellusive Crab and Prawn Traps

If you are a boater, in particular a sea or... Read More

The Best European Cruise Travel Vacation!

So, you are contemplating a European cruise. You are looking... Read More

Whats Involved With Honeymoon Cruise Packages?

With so many honeymoon cruise packages to choose from, it... Read More

Western Caribbean Cruise

We were on the Radiance of the Seas for the... Read More

What You Need to Know About Cruise Holidays

Are you tired of the hustle and bustle of driving,... Read More

led garage lighting dimmable led bulbs Pete's produce ..