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

WORKSHOP ON BREAKDOWN TO TURBULENCE AND ITS CONTROL

Programme, updated 26/03/99

Note to speakers: 1-hour talks should include 15 mins for discussion.

Free/discussion slots may be filled with further talks and/or themed discussion sessions.

Monday, March 22

09:30-10:30: General introduction by Peter Monkewitz, Neil Sandham and Chris Atkin

11:00-12:00: Paolo Luchini: Transition prediction methods

3:00-3:45: Xuesong Wu: Generation of Tollmien-Schlichting waves by convecting gusts interacting with sound waves

3:45-4:30: Discussion

Tuesday, March 23

09:30-10:30: Rebecca Lingwood: Swept-wing boundary layers: convectively or  absolutely unstable?

11:00-12:00: Stefan Le Dizes: Scenarios for nonlinear saturation of global  modes

3:00-3:45: Jonathan Healey: Using asymptotic methods to make practical nonparallel stability calculations

3:45-4:30: Discussion

Wednesday, March 24

09:30-10:30: Howard Hodson Late stage transition in the Low Pressure turbine

11:00-12:00: Wolfgang Rodi: Boundary layer transition induced by periodically passing wakes

3:00-3:45: Julian Hunt: Wake-induced transition and shear sheltering

3:45-4:30: Discussion

Thursday, March 25

09:30-10:00: Tony Perry: Turbulent spots

10:00-11:00: Frank Smith: On nonlinear spots in favourable or adverse pressure gradient

11:30 - 12:30: Mark Savill: Introduction to the COST/ERCOFTAC modelling  workshop

p.m. Possibility to attend the COST/ERCOFTAC transition modelling SIG workshop held at Wolfson Court from 14:00 to 17:30 (Continued Friday 9:00 - 17:30 and Saturday 9:00 - 17:30)

Monday, March 29

09:30-10:30: Dominique Martinand: Dynamic models for transitional Couette  flow

11:00-12:00: Fazle Hussain: Genesis and dynamics of coherent structures in near-wall turbulence, and their control for drag reduction

3:00-3:30: Neil Sandham: Streak stability and instability  

3:30-4:30: Free/Discussion

Tuesday, March 30

09:30-10:30: Bernard Geurts: DNS and LES of transition-enhancement in  separated boundary layer flow

11:00-12:00: Peter Carpenter: The use of wall compliance to control transition and turbulence

3:00-4:00: Jonathan Morrison: Scalings in wall-bounded turbulence:  implications for control

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