Features Table of Contents

March 1998

feature articles

streamlining fluid dynamics
More-intuitive preprocessors and advanced solvers are making CFD software easier to use, more accurate, and faster.

sound waves at work
Researchers have devised a new technique to use sound waves, opening the way for simple acoustic compressors, speedy chemical-process reactors, and clean electric-power generators.

keeping food germ-free
Growing concern over the safety of the U.S. food supply could lead to more facilities that will irradiate meat to kill bacteria, larva, and other carriers of diseases.

connecting the dots with cfd
Computational-fluid-dynamics software helped in the design of an ink-jet printer accurate enough to compete with laser printers.

linear motors take center stage
Able to produce high forces without sacrificing speed or precision, linear motors offer significant advantages over ball screws and rack-and-pinion systems.

energy-efficient appliances
Washing machines and other household devices are being redesigned for greater efficiency, so consumers can begin to think green as they keep clean.

a drier way to clean turbines
A high-pressure injection system that needs less water to clean gas turbines than conventional methods is reducing equipment maintenance costs for aircraft, offshore platforms, and power plants.