PAGE SIX
Navy Tests Submarine Forces
By KAY MILLS
Underwater flying bodies—
submarines, torpedoes an d
other systems which move un
der water as do airships above
water—are being studied at
the Garfield. Thomas Water Tun
nel next to the University golf
course
The testing, financed largely by
the federal government, combines
the needs of the U.S. Navy in
learning more about the forces at
work underwater with the re
quirements of advanced Univer
sity work, Dr. George F, Wish-
CettUS, director, said.
While the systems in reality
"fly" in the manner of airships,
conditions are simulated in the
tunnel by having water flow
past the submarine, he said.
"We investigate by making mod
els of the bodies, placing them in
the water tunnel, and subjecting
them to the same type of flow
which a regular body experiences
when traveling under water,"
Wislicenus said.
Two water tunnels of different speeds. Water becomes highly dis
dimensions are used. The larger!turbed in the "boundary layer"
one has a test section, or working,around a submarine or torpedo
area, which is 48 inches in di-;and can create resistance to the
atneter. It is the largest of about body moving through it.
20 in the Western word, he said. "Turbulence can be illustrated
Corps Aide Named 'informal Forum Planned
The Peace Corps has appointed For Family Art Show.
Arlene Fratkin, junior in elemen-1 The 1961 Family Art Show of
taiy education from Philadelphia, the Colle ge o f B usiness Admin
as the Corps representative on .
campus. istration will continue with an
One representative for the informal forum on "What is Art?"
Peace Corps has been appointed! The new exhibit in the faculty
at almost every college and uni
versity in the country. library in Boucke is under the
The representatives will serve direction of Mrs. Howard A. Cut
as the Peace Corps public rela-ler and consists of a series of
tions contact with students on:displays, using as subject matter
their campuses. such materials as manuscript
Students interested in Peace:excerpts, graphs and drawings
Corps service may contact Miss'.. created by members of the faculty,
Fratkin at UN 5-8935. and students of the college.
Don't Miss
SCHOOL OF THE ARTS --
IBM: 3 CENTURIES OF
PRINT MAKING EXHIBITION
Hub Gallery
Through Oct. 25th
This Is the LAST DAY for
BUSINESS ADMINISTRATION
to have their Portraits Taken
Affention
Chemistry and Physics
You must have
your portraits taken
for the 1962 La Vie
from
0ct.12 - 0ct.17
Infinity Enterprises,
319 W. Beaver Ave.
State College
8-5 p.m. - MONDAY-FRIDAY
Women wear white sweaters or white blouses.
Men wear dark suits, lies, and white shirts.
Because air and water flow are
in many ways similar, it is often
simpler in testing to use the wind
tunnel located in the rear of the
building which houses the water
[ tunnel. Some problems, however,
can only be studied under water.
The water tunnel, part of the
Ordnance' Research Laboratory,
tests deign of torpedo-propeller
body systems in connection with
three problems: cavitation, tur
bulence and hydro-elasticity.
Cavitation, a "violent phenome
non," results when a body "tears
a hole in the water" through which
it travels at high speed, Wislicenus
said. Scientifically speaking, the
water has been subjected to such
low pressures that it is vaporized.
Cavitation is a problem because
it is noisy, reduces the efficiency
of the body and erodes it. For
example, ship propellers of ocean
liners must generally be ex
changed every few years due to
cavitation, he said.
"We would like to avoid cavi
tation
. completely, but if this is
not possible, we want to learn
to live with it," he added.
A second phase of study is tur
bulence, which also occurs at high
at the studio of
Sifting Fee of $2
THE DAILY COLLEGIAN. UNIVERSITY PARK. PENNSYLVANIA
Seniors!
\i,
inc.
by turning on a water faucet,
slowly at first. The water will
appear smooth and glassy. As you
turn the water faucet more, the
stream becomes frosty. The frosti
ness is caused by turbulence with
in the stream," Wislicenus said,
quoting an authority in the field.
"Turbulence is a natural phe
nomenon and is very difficult to
avoid. It is important that we
understand it to predict the mo
tion and design systems to mini
mize its effect," he said.
The third major field is hydro
elasticity, closely related to aero
elasticity. Several disastrous acci
dents with Electra turbo-propeller
planes recently may have been
caused by an aero-elastic failure,
he said. This means the air flow
may have made the wing vibrate
so violently as to cause breakage,
he added.
Similar vibrations are studied
in relations to hydro-elasticity, he
said.
The researchers at the tunnel
often work through the Navy
with private companies on their
programs. Some of the workers
are participating in the investi
gations as thesis work for ad
vanced degrees.
The tunnel, now over 10 years
old, was named after Lt. (j.g.)
W, Garfield Thomas, one of the
first University alumni who died
in World War 11.
CLASS RINGS
1962 & 1963
MARK BUTLER
Jeweler
Across from
Post Office
Rings—Pins—Charms—Keys
The Flying Commuter
Route of the Intellect
NOW MAKES JET CONNECTIONS AT BALTIMORE
FLIGHT 300
Lv. University Park 3:00 p.m.
':c Ar. Baltimore 3:50 p.m.
Ar. Washington 4:10 p.m.
'Flights Stop At Baltimore, Harrisburg and Philipsburg Only When There
Are Passengers To Plane Or Deplane. Otherwise NON-STOP Between
State College And WASHINGTON.
Telephone THE FLYING COMMUTER for Reservations
NOTE: Flight 400 will depart Washington at 4:15 p.m., Effective Oct. 28.
Foreign Training Opportunities
Possible for Business Students
Students in business admin
istration and economics may
be given the opportunity to
work abroad in the near
future, Howard Needleman,
president of the Business Adminis
tration Student Council, announ
ced at a meeting of the council
recently.
The exchange—job plan, to be
sponsored by American corpora
tions, is being considered by the
council and advisors. It would
guarantee American students from
$5O to $BO per week in salary fot
an undetermined period of time,
Tryouts for
THE UNIVERSITY READERS
Thursday, October 12
309 Sparks Bldg.
3:45 p.m.
Candidates May Read 5 Minutes of
Favorite Prose,
T-- If additional information is wanted, call Michele Ohrman, 7 - - =
= al
president, UN 5-2934. ==
=
Er - .
= • -4
Fillllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll4
ADams 8-0341
Your Local Travel Agent
TUESDAY, OCTOBER 10, 1961
Needleman said
A regional director of the For
eign Ekchange Program in busi
ness administration and economics
will visit the campus, tentatively
on Oct. 20, to speak to business
administration and economics ma
jors, and all other interested stu
dents and faculty members. The
talk will be held at 3:30 p.m. in
I3oucke.
Other business included the
proposal of a Career Day, to be
held at a future date. The council
has tentatively planned to include
a nationally prominent speaker
and panel discussions for separate
areas of business administration
and economics.
Poetry, or
Drama Selection
FLIGHT 400
Lv. Washington 4:30 p.m.
Lv. Baltimore 4:50 p.m.
Ar. University Park 5:55 p.m.