CFD Visualization Helps Protect Integrity of Buildings, Bridges, and Ships

November 2010 When Adam Hapij, senior associate at the structural engineering firm Weidlinger Associates, recently visited his son’s kindergarten class, he tried to explain what he does in a way a 5-year-old could comprehend. In the end, he simply said, “I protect people.” Indeed, at its very core, Hapij’s job is to protect people. Since Weidlinger opened for business more than half a century ago, the company has designed all […]

» Read More






Studying the Complex Flow Physics of Dragonfly Flight

Contributed by Dr. Haibo Dong Manager, Wright State University For the first time in history, researchers have been able to create a detailed 3D numerical simulation of a dragonfly in free flight. On the left is a high-speed movie of a dragonfly taking off. The black spots on the wing are 0.5mm ink markers that help track exact wing positions when creating the 3D shapes using films shot from different […]

» Read More


Using Visualization for Faster Understanding of Noise Issues

Contributed by Shen Heping, Software Development Manager, Hong Yuan Tech. Cars that ride more quietly. Higher-quality acoustics in auditoriums. Aircraft that meet or noise pollution regulations. These are just a few examples of how scientists and engineers can develop more comfortable, enjoyable, or environmentally-sound products by studying the source and distribution of noise. The ability to actually see the noise distribution or what’s going on around the noise source helps […]

» Read More



Tecplot helps utility researchers visualize magnetic fields

Contributed by Sylvain Gravel Hydro-Québec The Challenge: Accurately Visualizing Magnetic Flux Density In working with electrical power production and distribution, a key problem faced is being able to see the unseen – in other words, how does one view invisible electrical and magnetic forces at play? Hydro-Québec needed to be able to see magnetic flux density near a distribution power line, which is essentially understanding the power flow in the […]

» Read More


Advanced Simulation Code Unveils the Mystery of Acoustic Waves

Contributed by Dr. Baki Farouk Drexel University Problem Statement: Numerical simulations of the standing wave and acoustic streaming in a resonator filled with nitrogen (Fig. 1) are presented. The initial gas pressure in the resonator is 1 atm (101 KPa), and temperature is 300 K. The vibrational frequency of the left wall is chosen as f = 20 kHz. The corresponding wavelength of the sound wave at this frequency is […]

» Read More