This volume consists of papers selected from the proceedings of the Fifth International Symposium on Applications of Laser Techniques to Fluid Mechanics, held at the Calouste Gulbenkian Foundation in Lisbon from 9 to 12 July, 1990. Relative to previous meetings in the Lisbon series the scope of this symposium was broadened by expanding the topical coverage to include all laser techniques used in fluid mechanics. This change recognized the trend amongst experimental fluid dynamicists to employ laser techniques for the mea surement of many different quantities, including concentration, temperature, particle size, and velocity, and the need for researchers to have a forum in which to communicate their work and share their common interests. The Fifth Symposium contained twenty-three sessions of formal presentations and a lively Open Forum ses sion. In addition, Dr. H. J. Pfeiffer organized a special Workshop on the Use of Computers in Flow Mea surements which contained five sessions on frequency domain processors, correIa tors, special detectors, and biasing.
Dr. Ronald J. Adrian is the Ira A. Fulton Professor of Mechanical and Aerospace Engineering at Arizona State University's Fulton School of Engineering and heads the Laboratory for Energetic Flow and Turbulence. He is well known for his contributions to the field of fluid dynamics in the areas of wall turbulence, thermal convection, coherent structures in turbulence and laser instrumentation. He is the Associate editor of the Journal of Fluid Mechanics, Co-editor of the Springer Series in Experimental Fluid Mechanics and Co-founder and editor of eFluids.com