Momentum - February 2019 - 7

STUDENT
GENERATION

Wind tunnel testing of the wingtip.

Using flow simulations, the team iteratively developed a wingtip that
minimized induced drag.
angles. At a sufficiently high angle, the string sections spread across
the top of the wing would cross over themselves, indicating boundary
layer separation. Configurations with and without the vortex generators
were tested, and the difference in stall angles were noted. Positive
correlations in lift-to-drag were observed with the added wingtips and
vortex generators, which agreed with the flow simulations, and were
implemented in the competition aircraft.
The results of all the testing performed had a great effect on the
success of the team at the competition flight rounds. The density
altitude information derived from full-scale prototype testing was
utilized to determine an appropriate amount of flight payload for
each of the seven flight rounds. Along with a greater incidence angle,
the flight density information proved vital as the aircraft was able to
takeoff consistently with the maximum possible payload for the given
conditions. Further improvements in the lift available were provided by
the added wingtips and vortex generators, which resulted in the aircraft
possessing one of the highest lifting capabilities in Regular Class.

MOMENTUM

Adhesive joining the motor bulkhead and the nose of the aircraft
failed in the frigid temperatures as the full-scale prototype rumbled
on the icy runway, resulting in separation of those components.

The aircraft also suffered no major structural issues in
the seven flight rounds, which had been addressed in the
full-scale prototype testing. Thus, by having an aircraft
that consistently flew at its maximum possible payload
for the given conditions, UMSAE Polar Air achieved the
first place overall finish in the Regular Class.
Jasyot Barmi, a recent graduate in mechanical
engineering from the University of Manitoba, wrote
this article for MOMENTUM. He was the team leader of
UMSAE Polar Air Aero Design.

February 2019 7



Momentum - February 2019

Table of Contents for the Digital Edition of Momentum - February 2019

Momentum - February 2019
Contents
Go all in with your student membership
Briefs
Battling the elements
‘Hard work, determination, and a little bit of luck’
Shootout in Canada
How to lead a team
Plan, prepare, and succeed
‘The Eagle has landed’
SAE Detroit Section helps teams prep for Formula SAE season
SAE 101: Organically developed member groups considered for new organization model
DOSSIER: Mario Gutierrez of Robby Gordon Motorsports
Tips for navigating through the entry-level position
New SAE technical paper competition launches
Momentum - February 2019 - Momentum - February 2019
Momentum - February 2019 - Cover2
Momentum - February 2019 - Contents
Momentum - February 2019 - Go all in with your student membership
Momentum - February 2019 - Briefs
Momentum - February 2019 - Battling the elements
Momentum - February 2019 - 5
Momentum - February 2019 - 6
Momentum - February 2019 - 7
Momentum - February 2019 - ‘Hard work, determination, and a little bit of luck’
Momentum - February 2019 - 9
Momentum - February 2019 - 10
Momentum - February 2019 - Shootout in Canada
Momentum - February 2019 - How to lead a team
Momentum - February 2019 - 13
Momentum - February 2019 - Plan, prepare, and succeed
Momentum - February 2019 - ‘The Eagle has landed’
Momentum - February 2019 - SAE Detroit Section helps teams prep for Formula SAE season
Momentum - February 2019 - SAE 101: Organically developed member groups considered for new organization model
Momentum - February 2019 - DOSSIER: Mario Gutierrez of Robby Gordon Motorsports
Momentum - February 2019 - 19
Momentum - February 2019 - New SAE technical paper competition launches
Momentum - February 2019 - Cover3
Momentum - February 2019 - Cover4
https://www.nxtbook.com/smg/sae/21MOMP02
https://www.nxtbook.com/nxtbooks/sae/20MOMP11
https://www.nxtbook.com/nxtbooks/sae/20MOMP10
https://www.nxtbook.com/nxtbooks/sae/20MOMP09
https://www.nxtbook.com/nxtbooks/sae/20MOMP04
https://www.nxtbook.com/nxtbooks/sae/20MOMP03
https://www.nxtbook.com/nxtbooks/sae/20MOMP02
https://www.nxtbook.com/nxtbooks/sae/19MOMP11
https://www.nxtbook.com/nxtbooks/sae/19MOMP10
https://www.nxtbook.com/nxtbooks/sae/19MOMP09
https://www.nxtbook.com/nxtbooks/sae/19MOMP04
https://www.nxtbook.com/nxtbooks/sae/19MOMP03
https://www.nxtbook.com/nxtbooks/sae/19MOMP02
https://www.nxtbook.com/nxtbooks/sae/18MOMP10
https://www.nxtbook.com/nxtbooks/sae/18MOMP03
https://www.nxtbook.com/nxtbooks/sae/18MOMP02
https://www.nxtbook.com/nxtbooks/sae/17MOMP11
https://www.nxtbook.com/nxtbooks/sae/17MOMP10
https://www.nxtbook.com/nxtbooks/sae/17MOMP09
https://www.nxtbook.com/nxtbooks/sae/17MOMP04
https://www.nxtbook.com/nxtbooks/sae/17MOMP03
https://www.nxtbook.com/nxtbooks/sae/17MOMP02
https://www.nxtbook.com/nxtbooks/sae/16MOMP11
https://www.nxtbook.com/nxtbooks/sae/16MOMP10
https://www.nxtbook.com/nxtbooks/sae/16MOMP09
https://www.nxtbook.com/nxtbooks/sae/16MOMP04
https://www.nxtbook.com/nxtbooks/sae/16MOMP03
https://www.nxtbook.com/nxtbooks/sae/16MOMP02
https://www.nxtbook.com/nxtbooks/sae/15MOMP11
https://www.nxtbook.com/nxtbooks/sae/15MOMP10
https://www.nxtbook.com/nxtbooks/sae/15MOMP09
https://www.nxtbook.com/nxtbooks/sae/15MOMP04
https://www.nxtbook.com/nxtbooks/sae/15MOMP03
https://www.nxtbook.com/nxtbooks/sae/15MOMP02
https://www.nxtbook.com/nxtbooks/sae/14MOMP11
https://www.nxtbook.com/nxtbooks/sae/14MOMP10
https://www.nxtbook.com/nxtbooks/sae/14MOMP09
https://www.nxtbook.com/nxtbooks/sae/14MOMP04
https://www.nxtbook.com/nxtbooks/sae/14MOMP03
https://www.nxtbook.com/nxtbooks/sae/14MOMP02
https://www.nxtbook.com/nxtbooks/sae/13MOMD1101
https://www.nxtbook.com/nxtbooks/sae/13MOMD0930
https://www.nxtbook.com/nxtbooks/sae/13MOMD0830
https://www.nxtbook.com/nxtbooks/sae/13MOMD0401
https://www.nxtbook.com/nxtbooks/sae/13MOMD0301
https://www.nxtbook.com/nxtbooks/sae/13MOMD0201
https://www.nxtbook.com/nxtbooks/sae/12MOMD1031
https://www.nxtbook.com/nxtbooks/sae/12MOMD0928
https://www.nxtbook.com/nxtbooks/sae/12MOMD0831
https://www.nxtbook.com/nxtbooks/sae/12MOMD0330
https://www.nxtbook.com/nxtbooks/sae/12MOMD0228
https://www.nxtbook.com/nxtbooks/sae/12MOMD0128
https://www.nxtbook.com/nxtbooks/sae/11MOMD1028
https://www.nxtbook.com/nxtbooks/sae/11MOMD0929
https://www.nxtbook.com/nxtbooks/sae/11MOMD0829
https://www.nxtbook.com/nxtbooks/sae/11MOMD0331
https://www.nxtbook.com/nxtbooks/sae/11MOMD0225
https://www.nxtbook.com/nxtbooks/sae/11MOMD0128
https://www.nxtbook.com/nxtbooks/sae/10MOMD1029
https://www.nxtbook.com/nxtbooks/sae/10MOMD0930
https://www.nxtbook.com/nxtbooks/sae/10MOMD0831
https://www.nxtbook.com/nxtbooks/sae/10MOMD0331
https://www.nxtbook.com/nxtbooks/sae/10MOMD0226
https://www.nxtbook.com/nxtbooks/sae/10MOMD0129
https://www.nxtbookmedia.com