Symposium Transsonicum II

The first Symposium Transsonicum took pl.ace in Aachen thirteen years ago during a period of decreasing governmental. and industrial. support for transonic flow research. Since then, there has been a strong revival. in interest in transonic flow research so that the number of partici pants at the second symposium remained about the same as at the first even in spite of tight financial. means and Limited governmental. support. During both meetings the number of participants reached the upper Limit of the number desirabl.e for such a symposium. Participants came from aU over the worl.d and there was a weU bal.anced distribution of participants from aU countries interested in transonic flow research. The discussions - mostLy conducted in EngLish - were stimul.ating and there was a great deal. of interest in the l.ectures as was shown by the good attendance even during the l.ast session on Saturday morning.

Contenu
I Unsteady Flow.- Some Developments in Unsteady Transonic Flow Research.- Das Störpotential für aperiodische instationäre schallnahe Strömungen.- Asymptotic Solutions for Nonsteady Transonic Channel Flows.- On the Motion of Shock Waves on an Airfoil with Oscillating Flap.- Shock Oscilattions in Transonic Flows and their Prevention.- Calculation of Buffet Onset for Supercritical Airfoils.- V. Karman Vortices and their Frequency Determination in the Wakes of Profiles in K. A. Bütefisch the Sub- and Transonic Regimes.- Neutral Damping Boundary in the Transonic Regime.- Zur Berechnung instationärer transsonischer Druckfelder mit Stößen bei gashaltigen Wasserströmungen.- Unsteady Transonic Supersonic Flow over Suddenly Inserted Bodies.- II Hodograph Methods, Singularities.- Review of the Application of Hodograph Theory to Transonic Aerofoil Design and Theoretical and Experimental Analysis of Shock-Free Aerofoils.- The Direct Problem of the Transonic Airfoils on the Hodograph.- Singular Perturbation Methods Applied to Two-Dimensional Transonic Flow around Slender Bodies.- The Transonic Controversy and Perturbation Theory for Ringleb's Flow.- III Methods in the Physical Space.- Stabilisation Law and Drag in Transonic Range of Velocities.- The Theorem of a Flat Sonic Surface.- Integral Equation Methods a Reappraisal.- Airfoil Design for a Prescribed Velocity Distribution in Transonic Flow by an Integral Method.- Problems and Results of the Integral Equation Method for Transonic Flows.- On the Integral Equation Method.- IV Internal Flow.- Axisymmetric Inlet Flow at Low Supersonic Mach Numbers.- Flow in the Throat of a Laval Nozzle.- Transonic Swirling Flow in Axisymmetric Nozzles.- On Some Extensions of the Prandtl Formula for the Wave Length of a Sonic JetExpanding into the Atmosphere.- V Viscous Flow.- Analytical Theory of Transonic Normal Shock Boundary Layer Interaction.- The Normal Shock at a Curved Wall in the Viscous Case.- The Structure of Shock Wave-Boundary Layer Interactions in Transonic Flow.- Shock Induced Flow Oscillations in a Laval Nozzle.- Further Developments in an Analysis of the Interaction of a Weak Normal Shock Wave with a Turbulent Boundary Layer.- VI Applications.- Design and Test of a Sonic Roof-Top Pressure Distribution Wing.- Supercritical Wing Design for a Fighter Type Experimental Aircraft.- An Experimental Investigation of Garabedian and Korn's Shockless Lifting Airfoil No. 1.- On the Development and Structure of Transonic Flow in Cascades.- Application of Generalized Potentials on Plane Transonic Flow.- An Exact Hodographmethod for the Design of Supercritical Wing-Sections.- Flow Phenomena of Transonic Flow in Twodimensional Cascades.- Relaxation Solution for the Transonic Flow through a Cascade.- Mathematical Method of Designing a Certain Compressor Type Plane Blade Cascade.- Transonic Aerodynamics and the Helicopter Rotor.- VII Numerical Methods.- A Review of Numerical Techniques for Calculating Supercritical Airfoil Flows.- Steady Supercritical Flow Past Ellipses.- Steady Transonic Flow through Plane and Axisymmetric Nozzles.- Numerical Computation of Transonic Flows with Shock Waves.- Review of Some Numerical Solutions of the Transonic Small Disturbance Equations.- On the Sonic Flow over a Cone-Cylinder Body and its Wall Effects in a Wind Tunnel.- Advances in the Application of Fast Semidirect Computational Methods in Transonic Flow.- Accuracy and Efficiency in the Numerical Analysis of Transonic Flows.- Inviscid Transonic Flow Computations with Shock Fitting.- Research in the UK onFinite Difference Methods for Computing Steady Transonic Flows.- Some Numerical Results of a New Three Dimensional Transonic Flow Method.- A Numerical Method to Compute Inviscid Transonic Flows around Axisymmetric Ducted Bodies.- Supercritical Flow Past Airfoils at Mach Numbers Close to One.- A Direct Method for Computing Non-Symmetrical Plane Flows at Mach Number One.- The Analysis of Arbitrary Wingbody Combinations in Transonic Flow Using a Relaxation Method.- A Fully Conservative Relaxation Method for Transonic Flows.- Numerical Solutions for Transonic Flows Past Wing-Body Combinations.- The Calculation of Steady Inviscid Flow around Non-Lifting Bodies.- Remarks on the Suitability of Various Transonic Small Perturbation Equations to Describe Three-Dimensional Transonic Flow; Examples of Computations Using a Fully-Conservative Rotated Difference Scheme.- Transonic Solutions of the Euler Equations by the Finite Volume Method.