Perspectives in Turbulence Studies: Dedicated to the 75th Birthday of Dr. J. C. Rotta International Symposium D.F.V.L.R. Research Center, Göttingen, May 11-12, 1987

The present volume entitled "Perspectives in Turbulence Stud­ ies" is dedicated to Dr. Ing. E. h. Julius C. Rotta in honour of his 75th birthday. J. C. Rotta, born on January 1, 1912, started his outstanding career in an unusual way, namely in a drawing office (1928 - 1931). At the same time he - as a purely self taught perso- took a correspondence course in airplane construction. From 1934 to 1945 he worked in the aircraft industry on different subjects in the fields of flight mechanics, structures, air­ craft design, and aerodynamics. In 1945 he moved to Gottingen and worked from that time at the Aerodynamische Versuchsanstalt (AVA, now DFVLR) and the Max-Planck-Institut fur Stromungsforschung (1947-1958), interrupted only by a stay in the U. S. at the Glenn L. Martin Company (1954 - 1955) and a visiting professorship at the Laval University in Quebec, Canada (1956). Already during his activities in industry, Dr. Rotta discovered his special liking for aerodynamics. In Gottingen, he was attracted by Ludwig Prandtl's discussions about problems associated with turbulence and in particular his new contribution to fully developed turbulence, published in 1945. At that time, W. Heisenberg and C. F. v. Weizacker pub­ lished their results on the energy spectra of isotropic turbu­ lence at large wave numbers. Since that time his main research interest in reasearch has been in turbulence problems. The present volume entitled "Perspectives in Turbulence StudƯ ies" is dedicated to Dr. Ing. E. h. Julius C. Rotta in honour of his 75th birthday. J.C. Rotta, born on January 1, 1912, started his outstanding career in an unusual way, namely in a drawing office (1928 - 1931). At the same time he - as a purely self taught perso- took a correspondence course in airplane construction. From 1934 to 1945 he worked in the aircraft industry on different subjects in the fields of flight mechanics, structures, airƯ craft design, and aerodynamics. In 1945 he moved to Gottingen and worked from that time at the Aerodynamische Versuchsanstalt (AVA, now DFVLR) and the Max-Planck-Institut fur Stromungsforschung (1947-1958), interrupted only by a stay in the U.S. at the Glenn L. Martin Company (1954 - 1955) and a visiting professorship at the Laval University in Quebec, Canada (1956). Already during his activities in industry, Dr. Rotta discovered his special liking for aerodynamics. In Gottingen, he was attracted by Ludwig Prandtl's discussions about problems associated with turbulence and in particular his new contribution to fully developed turbulence, published in 1945. At that time, W. Heisenberg and C.F. v. Weizacker pubƯ lished their results on the energy spectra of isotropic turbuƯ lence at large wave numbers. Since that time his main research interest in reasearch has been in turbulence problems Front Matter....Pages I-IX Instability, Three-dimensional Effects and Transition in Shear Flows....Pages 1-25 The Influence of Wind Tunnel Turbulence on the Boundary Layer Transition....Pages 26-46 Stability Investigation in Nominally Two-dimensional Laminar Boundary Layers by Means of Heat Pulsing....Pages 47-70 Three-dimensional Stability of Boundary Layers....Pages 71-92 Coherent Structures in Turbulent Boundary Layers....Pages 93-114 Turbulence Modelling Using Coherent Structures in Wakes, Plane Mixing Layers and Wall Turbulence....Pages 115-153 Onset and Development of Coherent Structures in Turbulent Shear Flows....Pages 154-187 Energy Events in the Atmospheric Boundary Layer....Pages 188-222 Turbulent Boundary Layer Development over Rough Surfaces....Pages 223-249 The Role of Free Flight Experiments in the Study of Three-dimensional Shear Layers....Pages 250-299 Developments in Measuring Reynolds Stresses....Pages 300-350 On the Theory of Turbulence for Incompressible Fluids....Pages 351-381 Three-dimensional Flows with Imbedded Longitudinal Vortices....Pages 382-413 Recent Progress in Three-dimensional Turbulent Boundary Layer Research at BIAA....Pages 414-438 Three-dimensional Turbulent Boundary Layer Calculations....Pages 439-472 Numerical Simulation of Turbulent Flows Using Navier Stokes Equations....Pages 473-497 Back Matter....Pages 498-503 The present volume is dedicated to Dr.-Ing. E.h. Julius C. Rotta on the occasion of his 75th birthday. It contains a collection of carefully selected research papers by outstanding international experts in the field of turbulence studies. The main subjects are: boundary layer transition, especially in three-dimensional flows; coherent structures in turbulent shear flows; and three-dimensional turbulent boundary layers - theory, experiment and industrial applications.