Isaac Newton Institute for Mathematical Sciences

Turbulence

January - June 1999

Organisers: GF Hewitt (Imperial College), PA Monkewitz (Lausanne), N Sandham (QMW), JC Vassilicos (Cambridge)

Research Programme on Turbulence

Instructional Conference

CLOSURE STRATEGIES FOR

MODELLING TURBULENT AND

TRANSITIONAL FLOWS

Isaac Newton Institute for Mathematical Sciences, Cambridge, UK 

April 6th-17th, 1999

 Background    Organisation   Theme   Final Programme   Application Form  Further Information

Background

Whether in Industry or the Environment fluids are normally in turbulent motion. Engineers and physicists need to understand turbulent flows in order to develop means of predicting their behaviour and, thereby to account for their adverse effects or to exploit their potentially beneficial consequences.

The development over the past 10-20 years of usable Computational Fluid Dynamics (CFD) codes has produced a sea change in the design and development approach, allowing products to be brought to the market much more rapidly and economically. However, CFD codes are necessarily based on turbulence models whose parameters have to be deduced from measurements. The generality of these mathematical aspects of the models have been inadequately explored. 

The practical importance of turbulence has led The Royal Academy of Engineering to launch an Initiative on Turbulence, the most important outcome of which was the definition and agreement of a 6-month Isaac Newton Institute (INI) Research Programme to try to evaluate the fundamental issues and to develop a strategy to address these issues for the future. The Isaac Newton Institute is based in a purpose-built building which is designed to allow leading mathematical scientists to address together important issues in mathematical sciences.

The Instructional Conference is an opportunity for young researchers to interact with the invited members of the INI Programme via a co-ordinated series of advanced lectures and informal discussions. The Instructional Conference will be held at the Isaac Newton Institute, 20 Clarkson Road, Cambridge CB3 0EH, UK (tel: 01223 335999, Fax: 01223 330508)

Organisation

The Director of the Instructional Conference is:

Other members of the Organizing Committee are:

Theme of the meeting:

This meeting is suitable for post-doctoral and advanced pre-doctoral researchers working in the field of turbulence and transition modelling. The objective is to provide an integrated, state-of-the-art exposition of mathematical methods and techniques for characterizing the behaviour and consequences of turbulence as encountered in engineering and the environment.

Format: There will be typically five 1-hour lectures per day with ample time scheduled for more informal discussions. Participants are invited to contribute to poster sessions and/or open forum presentations on the theme of the conference. A book of the lecture material will be published. 

List of lecturers:

Final Programme

Tuesday April 6th

from 14.00: Registration

16.30: Welcome and orientation - Professor H K Moffatt and staff of INI

Introduction to Instructional Conference - Professor B E Launder

Wednesday April 7th

Overview on Modelling, Numerical Issues and the Use of DNS

Gatski: Linear/Non-Linear Eddy Viscosity Models

Hanjalic: Second and Higher Moment Closure

Rodi: Large-Eddy Simulation

Leschziner: Numerical Solution Strategies for the Reynolds and Turbulence Closure Equations

Sandham: DNS and its Use in Closure Modelling

Thursday April 8th

Heat and Mass Transport in Wall Flows

Banerjee: Turbulence near Density Interfaces - 1

Nagano: Modelling Heat Transfer in Near-Wall Flows - 1

Nagano: Modelling Heat Transfer in Near-Wall Flows - 2

Hanjalic: Modelling Double Diffusion Phenomena Turbulence Near Interfaces

Craft: Closure Modelling near the Two-Component Limit

Friday April 9th

Stably Stratified Flows

Banerjee: Turbulence near Density Interfaces - 2

Launder: Application of TCL Modelling to Stably Stratified Flows

Ilyushin: Higher Moment Diffusion in Stable Stratification and Separated Flows

Craft: Modelling of Separated and Impinging Flows

Laurence: Closure Modelling for Industrial Flows

Monday April 12th

Transition

Sandham: DNS Studies of Transitioning Flows

Monkewitz: Recent Developments in Transition Modelling - 1

Savill: By-Pass Transition Using Conventional Closures Transition - II

Monkewitz: Recent Developments in Transition Modelling - 2

Savill: New Strategies in Modelling By-Pass Transition

Tuesday April 13th

Large-Eddy Simulation

Rodi: Large-Eddy Simulation of Bluff Body Flows

Laurence: LES Modelling of Industrial Flows

Sandham: DNS Studies of Compressible Flows

Bonnet: Compressibility Effects in Free Flows

Gatski: Compressibility Effects in Boundary Layers

Wednesday April 14th

Compressible Flows - 2

Bonnet: Shock-Wave Effects on Turbulence - 1

Gatski: Shock-Wave Effects on Turbulence - 2

Cambon: Two-Point Closure for Compressible Flows

New Strategies in Modelling - 1

Hanjalic: VLES approaches

Ilyushin: Use of Higher Moments to Construct Pdf's in Stratified Flows

Thursday April 15th

Reacting Flows - 1

Jones: Closure Strategies for Reacting Flows - 1

Roekaerts: Pdf Strategies for Reacting Flows - 1

Reacting Flows - 2

Jones: Closure Strategies for Reacting Flows - 2

Roekaerts: Pdf Strategies for Reacting Flows - 2

Friday April 16th

New Strategies in Modelling - 2

Jones: Developments in Modelling Reacting Flows

Cambon: Two-Point Closure Strategies

Launder: Multiple Time-Scale Strategies in Closure Modelling

    Further Developments, Conclusions and Perspectives

Short talks by modellers and industrial participants on new directions and cross-field interactions. Final discussions.

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