**Contact Info**

Department of Applied Mathematics

University of Waterloo

Waterloo, Ontario

Canada N2L 3G1

Phone: 519-888-4567, ext. 32700

Fax: 519-746-4319

PDF files require Adobe Acrobat Reader

Thursday, October 30, 2014 3:30 PM EDT

DC 1304

Dr. Alexander Gurevich

Engineering Scientist, Advanced Measurement and Analysis Group Inc.

Mathematical Model of Space-Time Development of Turbulent Structures, in Application to Flow Measurement

Space-time development of a turbulent velocity field, is an important subject in fluid dynamics, and the study of turbulence dynamics is important in many scientific fields. One application, is a method of flow measurement called Cross Correlation Flow Measurement, which is based on measuring the transport velocity of turbulent structures.

Cross correlation flow measurement has many advantages over more typically used flow measurement methods, but requires higher computational power. Advances in computer technology in recent decades have lead to wider use of this technology.

The Canadian company Advanced Measurement and Analysis Group Inc., (AMAG) is a developer and manufacturer of the cross correlation flow meter CROSSFLOW, and provides cross correlation flow measurement services to nuclear power plants around the world. In 2009, AMAG and De Montfort University (DMU), UK, initiated a joint project to develop a mathematical model of cross correlation flow measurement. A mathematical model of cross correlation flow measurement was developed, based on analysis of space-time development of a velocity field and vorticity field in turbulent flow. Laboratory testing was conducted to validate the model. Results of numerical simulations based on the model were in good agreement with laboratory test results. The mathematical model and numerical simulation method developed as part of this research, can be used to study how turbulent properties and times averaged properties within a flow, effect the space-times development of turbulent structures.

This presentation will give a brief description of cross correlation flow measurement, and its applications. The focus of the presentation will be on the developed mathematical model and numerical simulations, and their applicability to various mathematical and scientific problems.

**Contact Info**

Department of Applied Mathematics

University of Waterloo

Waterloo, Ontario

Canada N2L 3G1

Phone: 519-888-4567, ext. 32700

Fax: 519-746-4319

PDF files require Adobe Acrobat Reader

University of Waterloo

University of Waterloo

43.471468

-80.544205

200 University Avenue West

Waterloo,
ON,
Canada
N2L 3G1

The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is co-ordinated within our Office of Indigenous Relations.