2015 Hall of Fame Competition Winners

We congratulate all of the winners, runners-ups and entrants from the 2015 ANSYS Hall of Fame Competition. This year's competitive field again produced winners from around the world in different industries.

Contest Rules

Hall of Fame - Past Winners

2015 Best in Show: Corporate

Andritz Hydro

Traditional main inlet vales in hydroelectric plants are heavy and expensive, due largely to the number of welds in between the valve’s components. Using ANSYS solutions for finite element analysis, Andritz Hydro developed a lighter-weight valve that replaces welds with bolts with controlled tightening, reducing design time and production costs, and increasing valve sales.

BRP

Cavitation and drag forces were marring the surface and reducing the speed of BRP marine engines. ANSYS solutions helped the engineers to understand and reduce these external forces on the engine’s gearcase, and to see the effects these forces had on the internal gearcase components, thus solving the surface degradation and speed reduction problems.

Spinologics Inc

Scoliotic spine surgery is currently a high risk procedure that relies on generic instrumentation that can place excessive force on the screws, rods, and vertebrae. Spinologics used ANSYS Mechanical simulations to perform patient-specific analysis of the procedure before surgery, which led to the development of a new spinal instrumentation system that could reduce the risks of scoliotic surgery in the near future.

 

2015 Best in Show: Academic

 
 
 

National Taiwan University of Science and Technology

Two devices are frequently used to fix pelvic fractures, but it is impossible to evaluate the biomechanical performance of these devices in vivo because of differences in bone quality, geometry and posture among patients. Researchers at NTUST used ANSYS Workbench to model both in-tact and fractured spine-pelvis-femur complexes with these fixation devices to obtain biomechanical stress data of the human and synthetic components of this system.

University of Wisconsin-Madison

Researchers at UWM needed to understand the heat budget (heat production and heat transfer) of a swimming leatherback sea turtle so they could predict where this type of sea turtle might survive in the ongoing global climate change scenario. They used ANSYS solutions to model the turtle’s flipper stroke in four zones and four phases to determine the energy expended by the turtle while swimming.
 

 

2015 Hall of Fame Finalists

UDSF - DICEA

Researchers used ANSYS Mechanical to analyze the structural behavior of several historic masonry buildings in Florence, including Brunelleschi’s Dome, as part of a seismic assessment. The quality of life of residents is closely tied to the presence of these buildings; a better understanding of how to protect them from potential earthquake damage resulted from these simulations.

Florida International University

Novel, foldable origami antennas with unique properties, such as miniaturization, deployability, reconfiguration, tunability, and multi-functionality could address the requirements of next generation communication, reconnaissance, and sensing systems. Using ANSYS HFSS for full wave simulations, researchers designed, analyzed and optimized the radiation performance of reconfigurable origami antennas; the simulations were in good agreement with physical prototypes.

ILK Dresden

To optimize a multi-stage axial fan with contra-rotating impellers, engineers used ANSYS Fluent for fluid transient simulation — including pressure rise, radial torques and swirl — of contra-rotating axial fans. The result was an extremely compact fan with low noise emission in addition to the high fluid-mechanical and energy-related requirements.

Los Alamos National Laboratory

Offshore oil platforms for ultra-deep water drilling are floating structures subject to vortex-induced motion (VIM) from the sea current, which can jeopardize safety. ANSYS Fluent simulations analyzed the motion of the floating structure resulting from complex fluid–structure interactions and vortex shedding, resulting in an improved process for platform design and novel strategies for reducing VIM.

Mecamidi

Turbomachinery manufacturers must supply operating efficiency and cavitation hill data for their customers. Using ANSYS DesignXplorer, engineers developed a fully automated CFD process that reduced the computation time of these parameters by a factor of four.

Oak Ridge National Laboratory

While developing a Continuously Variable Series Reactor to control electrical grid power flow, ANSYS Maxwell and ANSYS Simplorer were used for magnetic and electronic component design. Researchers invented a process for generating an adaptive mesh from a set of consecutive magnetostatic designs that is applicable to other simulations with strong nonlinearity and variable excitations.

OsComp Systems Inc

Filling compressed natural gas (CNG) cylinders has traditionally been slow and incomplete because faster filling causes higher temperature and lower fill percentage (due to lower gas density at higher temperature). Engineers used ANSYS CFD to develop the CNG Rapid Fill process, which optimizes CNG loading to ensure 100 percent fill at a rate several times faster than the conventional approach.

ResMed

Continuous positive airway pressure (CPAP) therapy for obstructive sleep apnea requires a mask that supplies pressurized air through the nose to keep airways open; noisy masks cause some patients to stop therapy. ANSYS CFX flow simulations of the mask and airways during the breathing cycle enabled engineers to understand noise generation and improve the design.

Stony Brook University

To model the fluid–structure interaction of blood flow in the SynCardia Total Artificial Heart, engineers used ANSYS Fluent to solve the flow equations and in-house code for valve and diaphragm motions. The simulations, which involve very large deformations of the flow mesh, calculated the flow stresses that blood platelet particles experience in the artificial heart.

University of Michigan

Pulse width modulation technology — widely used in inverter-fed motor controls (including electric vehicles) — causes high frequency harmonics that excite the motor structure and cause mechanical resonances and noise radiation. A research team successfully integrated ANSYS Simplorer, Maxwell, Mechanical, and Acoustics modules to predict radiated sound pressure levels in half the time of previous simulations with improved reliability .

Westinghouse Electric Germany GmbH

Filtered venting systems in nuclear power plants must withstand the increased radiation decay heat that would occur during a containment failure emergency. ANSYS CFX simulation confirmed the viability of the current filter design and identified improvements for even more extreme heat loads, thus enhancing nuclear safety.

Wichita State University

Coronary bypass surgery can save lives, but the resulting grafted blood vessels are subject to kinking and lesion formation, which can hinder blood flow. ANSYS CFX was used to understand the influence of graft geometry on the transient flow patterns in the bypass graft, resulting in a graft geometry that optimized blood flow conditions.