Computational Methods and Experimental Measurements

This book contains the edited proceedings of the 2nd Internat­ ional Conference on Computationa1 Methods and Experimental Meas­ urements held on board the QE2 liner from 27th June to 2nd Ju1y 1984. The meeting was sponsored by the International Society for Computationa1 Methods in Engineering and the Department of Civi1 Engineering, Southampton University and organized by the Computationa1 Mechanics Institute of Southampton, England. The QE2 provided an ideal environment for the international meeting and one that was equa11y convenient for the USA and European re­ searchers and offered a 10cation propitious to the interchange of ideas and c10se contact between participants. This book covers a wide range of different topics in Computat­ iona1 Methods and Experimental Measurements with the main empha­ sis on the re1ationships between experimental and ana1ytica1 5- utions. The first section deals with fluid dynamics problems and a 1arge number of app1ications. Section 2 considers geophysica1 fluid dynamics and describes some atmospheric models and their re1ated problems. Water resources are dealt with in Section 3 which describes some app1ications of porous media f10w and sur­ face water mode11ing. Wave interaction problems are described in Section 4 and Section 5 considers some important heat transfer app1ications. Other sections - 6 & 7 - study problems re1ated to stress analysis and structura1 app1ications. Vibration pro­ blems are becoming of fundamental importance in engineering and part of the Conference Proceedings - Section 8 - are dedicated to the study of experimental and computational models.

1. Fluid Dynamics.- The Turbulent Wake of a Flat Plate Near a Free Surface.- A Numerical Analysis of Three-Dimensional Compressible Turbulent Flows in Cascades and Ducts.- Finite Element Simulation of Transonic Flows by Modified Potential and Stream Function Methods.- Dispersion of Particles in Bi-Directional-Binary, Two-Dimensional, Incompressible Velocity Fields: Some Numerical Experiments.- Dynamic Tests and Model Simulation of a Nose-Towed Underwater Vehicle.- Hydrodynamic Studies of Cavitating Flow Interfacing with a Mathematical Model of Bubble Growth.- Simulation of Aorto Coronary Bypass Anastomoses Flow Conditions Using Distensible Tubing and a Pulsatile Pump.- Finite Element Modelling of Three Dimensional Fluid Flow.- 2. Geophysical Fluid Dynamics.- Velocity and Pressure Distributions in Tornado-like Vortices.- Influence of Convection on Eutectic Microstructure.- Surface Roughness Effects on Modeled Atmospheric Vortices.- 3. Water Resources.- Finite Element Simulation of the Undular Hydraulic Jump.- Computation of the Potential Flow Over Hinged-Leaf Gates.- Computer-Aided Measurements of Damping in Marine Sediments.- A Non Linear Finite Element Model for the Predic tion of the Water Fluctuations Under the Electro Nuclear-Plant of Trino Vercellese, Italy.- Analytical and Numerical Solutions for the Calcula tion of Vertical Suspended Sediment Distributions in Turbulent Open Channel Flows.- Online System Identification for Energy Resource Optimisation.- 4. Waves.- Second Order Wave Diffraction for Offshore Structures.- 5. Heat Transfer.- Computation and Measurement of Material Temperature in a Rotating Kiln with and Without Tumbling.- Physical Control of Numerical Solution of Parabolic Equations.- A Data Analysis Method to Estimate Heat Transfer Coefficient for Exchanger Tubes.- 6. Stress Analysis.- The Solution of Continuum Mechanics Problems Using Boundary Elements.- Study of the Effect of Manufacturing Tolerances in a Model of Large Butterfly Valve by Holographic Interferometry.- Stress Tensor Gauge.- Stiffened Rectangular Cantilever Shell Subjected to a Corner Load.- Application of Transitional Finite Element in Linear Elastic Mixed Mode Fracture.- A Truncation Scheme with Applications to Physical Problems.- The Determination of Stresses Using a Combined Theoretical and, Experimental Analysis Approach.- 7. Structural Applications.- FE and BIE Models Versus Experimental Results for the Study of Structural Behaviours in Ocean Engineering.- A Computation and Measurement Analysis about the Evaluation Accuracy of the Stator — Rotor Clearance on a Test Rig for Labyrinth Seals.- The Development of Plane and Initially Axisymmetric Laminar Wakes Generated by Bodies Moving Beneath a Free Surface.- Experimentally Verified Theoretical Analysis of Thin Glass Plates.- Asymptotic Solutions of Shells of Revolution Using the Computer Program Oasis.- 8. Vibrations.- Response of a Glass Melter to Steam Explosion.- A Data Acquisition System for the Investigation of Dynamic Stall.- On the Topological Structure of the Birkhoff-Shaw Strange Attractor.- Verifying Computations for Advanced Problems in Power Piping with in Situ Measurement.- A Multiblade Coordinate Transformation Processor.- A System Identification Finite Element Scheme to Improve Massive Rock Dynamic Models.- Elastic-Plastic Dynamic Analysis of Shear Wall Structures.- The BEM Scheme for Axisymmetric Dynamic Torsion Problems and the Evaluation of Dynamic Stiffnesses of the Foundation.- Unified Finite Element Approach for Dynamic Thermal Stress Analysis.- 9. Non-Linear Materials.- Post Cracking Behaviour of RCC Structures — A FE Simulation.- Quantitative Constitutive Equation for Face Centered Cubic Crystals Based on Dislocation Dynamics Model.- Spline Interpolation of the Stress-Strain Curves for Concrete in Compression.- Inelastic Finite Element Analysis of Vierendeel Trusses of Rectangular Hollow Sections.- Numerical Plastic-Fracture Models for Concrete.- 10. Soil Problems.- Inelastic Analysis of Rectangular Hollow Section T-Joints by Finite Element Method.- 11. Coupled Problems.- Mixed Approach FEM, BEM, Experimental for Coupled Structures in Static and Dynamic Conditions.- Experimental and Numerical Description of the Diffusion of a Liquid in a Swelling Elastomer.- Instability of Large Ice Masses by Finite Element Method.- Chaos and the Unpredictability of Computational and Experimental Simulations.