Another year has passed and with it, some Associate Editors have completed their three-year terms and new ones have joined us. I would like to take this opportunity to express my gratitude to the departing Associate Editors, Prof. Peter Bearman, Dr. Khairul Zaman, Prof. Urmila Ghia, Prof. Peter Raad and Prof. Muhammad Hajj for their substantial and very valuable service. Their efforts in selecting referees, obtaining reviews, evaluating the papers based on these reviews, communicating with the authors and overseeing modifications is critical for the successful operation and quality of the journal.

Four new Associate Editors have recently joined us, and I would like to introduce and welcome them to our team. This new group will greatly enhance our range of expertise that is essential for effective reviews of papers, especially in the experimental and complex flows areas. Dr. William Copenhaver from the Air Force Research Laboratory is an accomplished expert on all aspects of flows within axial turbomachines, both computational and experimental. He is joining the presently overloaded group of Associate Editors that handle the growing number of papers focusing on flows within pumps, turbomachines and related complex systems. Prof. Steven Ceccio from the University of Michigan is an experi-mentalist and has substantial experience in cavitation, multiphase flows, boundary layers, tomography, and applied large-scale experiments. He is joining the multiphase flow group, and will focus mainly on the experimental aspects of this area. Prof. Volkan O¨tu¨gen from Polytechnic University is an expert in compressible and incompressible three-dimensional, turbulent shear flows. He also has considerable experience in development of optical diagnostic techniques involving combined scalar and velocity measurements. He is joining the fluid mechanics group, and will handle papers dealing with turbulent shear flows and complex measurement techniques. Last, but not least, Prof. Michael Plesniak from Purdue University is an experimentalist and an expert in turbulent transport and mixing, aerosols, sprays and related pollution problems. He also has substantial experience in a variety of measurement techniques and applied heat transfer. He will mainly handle papers in the turbulent mixing area. As is evident, the diverse experience of the new Associate Editors will enhance our capability to review papers effectively. We promise to take advantage of their expertise and willingness to contribute.