About ATTC


               

THE THIRTIETH AMERICAN TOWING TANK CONFERENCE

WEST BETHESDA, MARYLAND, OCTOBER 2017

  Looking Forward to the Future,

   Balancing Model Testing and Numerical Simulation 

30th ATTC PROGRAM

 

INTRODUCTION

The thirtieth American Towing Tank Conference (30th ATTC) will be held at the Naval Surface Warfare Center located at West Bethesda, Maryland, on the dates of 3 to 5 October 2017. The Conference objective is to promote exchange of knowledge and stimulate research for the purpose of improving methods of model and full-scale experiments and numerical modeling for predicting full-scale performance of ships and marine installations. To accomplish this, scholarly papers on the design of facilities, equipment, instrumentation, experimental techniques, uncertainty assessment, correlation of testing, verification, validation, and application of methods of predicting full-scale performance, and formulating collective policy on matters of common interest will be presented.

The Conference begins with registration and a reception on the afternoon of 3 October 2017. This will be followed by two days of presentations of peer-reviewed papers. Conference registration includes a lunch on both the 4th and 5th and a dinner on the evening of the 4th.

The American Towing Tank Conference is leading the way to the future for the design, evaluation, and testing of marine vehicles, ships, submarines, ocean and environmental systems. The towing tanks of the world still have a significant purpose in performing experimental studies beyond our current numerical capabilities and base lining numerical predictions. ATTC Looking Forward to the Future, Balancing Model Testing and Numerical Simulation.

 

History of the American Towing Tank Conference

John G. Hoyt III, CSRA, NSWCCD (ret), Parkville, MD, USA

The American Towing Tank Conference is an old institution in Naval Architecture dating back to the 1930’s. A brief portrait of its founding and history to date is presented here to help introduce to the newcomer its place in the discipline of Naval Architecture, Marine and Ocean Engineering.

FOUNDING OF THE ATTC

The distance required to attend the International Towing Tank Conference (ITTC) in 1933 was impractical to allow any significant attendance or attendance at all. Dr. Kenneth Davidson (Stevens Institute of Technology) felt that “It is believed that the formation of an American association will allow a valuable exchange of ideas, problems, technique and standardization of certain detail practices among tank operators.  In addition it is hoped to improve the value of tank results for the designer and ship operator in the estimate of power, relative performances and full-sized trial correlation.” Then, Commander Harold E. Saunders agreed, and, thus, the American Towing Tank Conference (ATTC) was founded in 1938.

 

Experimental Towing Basin, Washington DC Circa 1930

 

The first meeting was held 14 – 15 April 1938 at Stevens Institute of Technology, Hoboken, NJ., where only seven participants were in attendance and are considered the founders of the ATTC:

Founders of the American Towing Tank Conference

     Commander H. E. Saunders     Experimental Model Basin, Navy Yard Washington DC

     Mr. Starr Truscott                    NACA Tank, Langley Field VA

     Mr. John B. Parkinson             NACA Tank, Langley Field VA

     Professor K. S. M. Davidson   Stevens Institute of Technology, Hoboken NJ

     Mr. K. F. Tupper                      National Research Council Tank, Ottawa Canada

     Mr. John Reilly                        Newport News Shipbuilding & Dry Dock Co, Newport News VA

     Professor L.A. Baier                University of Michigan Naval Tank, Ann Arbor MI

CONFERENCE HISTORY

Twenty-nine (29) ATTC gatherings have occurred since the first in 1938. Captain Harold E. Saunders at the newly constructed David Taylor Model Basin hosted the second meeting. Attendance had grown to 15 with representatives from the David Taylor Model Basin (DTMB), The National Advisory Committee for Aeronautics (NACA), National Research Council (NRC), Newport News Ship Yard, Stevens Institute of Technology, University of Michigan, Massachusetts Institute of Technology and the National Bureau of Ships (NBS).

Since these first two conferences, 27 others have met with the 30th to be held in 2017 and will be the fifth time that the David Taylor Model Basin, now Naval Surface Warfare Center Carderock Division will host it.

Previous American Towing Tank Conferences

ATTC

YEAR

LOCATION

 

ATTC

YEAR

LOCATION

1st

1938

Hoboken, NJ

 

16th

1971

Sao Paulo, Brazil

2nd

1939

Washington, DC

 

17th

1974

Pasadena, CA

3rd

1940

New York, NY

 

18th

1977

Annapolis, MD

4th

1941

New York, NY

 

19th

1980

Ann Arbor, MI

5th

1943

Washington, DC

 

20th

1983

Hoboken, NJ

6th

1946

Hoboken, NJ

 

21st

1986

Washington, DC

7th

1947

Newport News, VA

 

22nd

1989

St. John's, Canada

8th

1948

Ann Arbor, MI

 

23rd

1992

New Orleans, LA

9th

1950

Ottawa, Canada

 

24th

1995

College Station, TX

10th

1953

Cambridge, MA

 

25th

1998

Iowa City, IA

11th

1956

Washington, DC

 

26th

2001

Glen Cove, NY

12th

1959

Berkeley, CA

 

27th

2004

St. John's, Canada

13th

1962

Ann Arbor, MI

 

28th

2007

Ann Arbor, MI

14th

1965

Glen Cove, NY

 

29th

2010

Annapolis, MD

15th

1968

Ottawa, Canada

 

30th

2017

Carderock, MD

 

 

 

 

 

 

 

CURRENT PURPOSE AND GOALS OF THE ATTC

The ATTC and ITTC had similar goals in the beginning, that is, to bring together naval architects, engineers and scientists to allow a valuable exchange of ideas, problems, technique and standardization of certain detail practices among tank operators.  Over the years, both organizations have improved the value of tank results for the designer and ship operator in the estimate of power, relative performances and full-sized trial correlation. Over time, the bodies have adapted not only to changing technologies, but emerging technologies such as environmental protection and energy conversion and the use of various forms of numerical hydrodynamics.

Currently, the ITTC has the lead role in the determination of standards and practices per ISO guidelines. This has left the ATTC with needing another purpose. Since the ITTC now has the duty of setting standards and conventions, it no longer produces seminal papers on methods and techniques. The ATTC can now fill this void and be the originator of new techniques in naval experimentation, numerical hydrodynamics and marine vehicle design. The ATTC will create the new methods that can be reviewed and adopted as the standard of the future by the ITTC.

By the Rules of the American Towing Tank Conference, the objective of the ATTC is to promote exchange of knowledge and stimulate research for the purpose of improving methods of model-and full-scale experiments and numerical modeling for predicting full-scale performance of ships and marine installations. This includes the design of facilities, equipment, instrumentation, experimental techniques, uncertainty assessment, correlation of testing, verification, validation, and application of methods of predicting full-scale performance, and formulating collective policy on matters of common interest.

The American Towing Tank Conference will lead the way to the future for the design, evaluation, and testing of marine vehicles, ships, submarines, ocean and environmental systems. The towing tank still has a significant purpose in performing experimental studies beyond our current numerical capabilities and base lining numerical predictions.