SmartTail® and WindTamer® products
are the results of many years of development and have culminated in
successful track tests demonstrating over 5% fuel efficiency benefit at 62mph. Higher speeds and varying load conditions have field demonstrated fuel savings ranging up to 8% fuel efficiency improvements.
Wind Tunnel Testing (1/8 Scale)
SmartTail® and WindTamer® aerodynamic products were evaluated in several series of wind tunnel tests. The
windtunnel tests included a moving track with angles of air flow that were conducted at a state-of-the-art open throat test facility, varied
throughout a wide range to provide a weighted overall performance in varied headwinds. Engineers
observed the effects of product design variations to optimize drag reduction
and fuel efficiency performance at speeds from 35-75mph. It
is noted that with Aerodynamic devices the fuel efficiency benefits
increase with increasing speeds. This laboratory setting provides
very precise data under very controlled conditions to yield very accurate
data on drag reduction performances. Tests show fuel efficiency gains of 7% at
a speed of 75mph using SmartTail® and WindTamer® aerodynamic products.
SmartTail® and WindTamer® aerodynamic products were
both fully tested at the Continental Tire's Uvalde proving grounds track
per the SmartWay and SAE J1321 standards. The tests strongly correlated
to the wind tunnel tests and demonstrated
a combined Fuel efficiency improvement over 5% at speeds of 63mph.
This facility uses state of the art measuring equipment with impartial 3rd
party independent test results.
CFD “Computational Fluid Dynamics’ Studies
CFD research work was done in seven phases
from 2004-2009 on behalf
of ATS led by Dr. Mo Kassemi at the NASA’s National center for Space
Exploration Research and Case Western Reserve University. The above video
shows a portion of the CFD studies clearly demonstrating the air vortex
developed at the rear of the trailer. The addition of the rear end boattail
technology is visually displayed to show the reduction of the vortex.
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