Parallel CFD 2006 conference was held in Busan city, Korea, from May 15 to 18, 2006. It was the eighteenth conference in an international series of meetings featuring computational fluid dynamics research on parallel computing. There were over 150 participants from 14 countries.

During the conference, 7 invited papers and 92 contributed papers were presented in two parallel sessions. Nowadays, Korea has strength in IT-based technology and large scale computing became popular in universities, research institutes, and companies. Although CFD is one of basic tools for design procedures in Korea to produce machineries, such as automobiles, ships, aircrafts, etc., large scale parallel computing has been realized very recently, especially for the manufactures. Various applications in many areas could be experienced including acoustics, weather prediction and ocean modeling, flow control, turbine flow, fluid-structure interaction, optimization, heat transfer, hydrodynamics. We believe that this conference gave strong motivation and need for parallel computing to everyone.

These proceedings include about 40 percent of the oral lectures presented at the conference. All published papers have been refereed.

The Editors