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Gretar Tryggvason

from Baltimore, MD
Age ~68

Gretar Tryggvason Phones & Addresses

  • 922 S Streeper St, Baltimore, MD 21224
  • South Bend, IN
  • 15 Montclair Dr, Worcester, MA 01609
  • 1635 Hillridge Blvd, Ann Arbor, MI 48103 (734) 994-1173

Resumes

Resumes

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Professor And Department Head

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Location:
Notre Dame, IN
Industry:
Mechanical Or Industrial Engineering
Work:
University of Notre Dame since Jul 2010
Viola D. Hank Professor of Aerospace and Mechanical Engineering

Worcester Polytechnic Institute Jul 2000 - Jul 2010
Professor and Department Head
Education:
Brown University 1980 - 1984
Skills:
Research
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Gretar Tryggvason

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Skills:
Focal Point

Publications

Wikipedia References

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Gretar Tryggvason

Work:
Company:

Worcester Polytechnic Institute

Education:
Studied at:

Brown University

Academic degree:

Professor

Area of science:

Computational fluid dynamics

Natural sciences:

Computational physics

Skills & Activities:
Ascribed status:

Fellow of the American Physical Society

Us Patents

Method And Apparatus For Obtaining Species Concentrations And Reaction Rates In A Turbulent Reacting Flow

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US Patent:
56403313, Jun 17, 1997
Filed:
Sep 14, 1995
Appl. No.:
8/528355
Inventors:
Werner J. A. Dahm - Ann Arbor MI
Gretar Tryggvason - Ann Arbor MI
Assignee:
Gas Research Institute - Chicago IL
International Classification:
G01N 1100
US Classification:
364496
Abstract:
A method and apparatus for computing molecular diffusion and chemical reaction within a material wherein shape and time evolution values of one or more material surfaces are determined, and a rate of stretch of each material surface is determined as a function of time. The method includes solving a set of ordinary differential equations at a multiplicity of points on the material surface. The ordinary differential equations are reduced from and represent an approximation of a more complex and complete set of governing partial differential equations. One or more conserved scalars are tracked and conserved scalar values and a gradient of the conserved scalars are determined. A rate of change from the gradient of the conserved scalars is also determined. A mass fraction and a reaction rate of each chemical species of the material is correlated as a function of determined conserved scalar values and a determined gradient of the conserved scalars. The method and apparatus of this invention are particularly useful as a general tool for simulating nitrogen oxides output and other flame properties of a wide class of combustion applications.

Local Integral Method For Computing Molecular Diffusion And Chemical Reaction

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US Patent:
55837891, Dec 10, 1996
Filed:
Jul 30, 1993
Appl. No.:
8/099864
Inventors:
Werner J. A. Dahm - Ann Arbor MI
Gretar Tryggvason - Ann Arbor MI
Assignee:
Gas Research Institute - Chicago IL
International Classification:
G06F 1700
US Classification:
364496
Abstract:
A local integral method for computing molecular diffusion and chemical reaction within a material wherein shape and time evolution values of one or more material surfaces are computed, and a rate of stretch of each material surface is determined as a function of time. A set of ordinary differential equations are solved at a multiplicity of points on the material surface. The ordinary differential equations are reduced from and represent an approximation of a more complex and complete set of governing partial differential equations. One or more conserved scalars are tracked and conserved scalar values and a gradient of the conserved scalars are determined. A rate of change from the gradient of the conserved scalars is also determined. A mass fraction and a reaction rate of each chemical species of the material is correlated as a function of determined conserved scalar values and a determined gradient of the conserved scalars. The local integral method of this invention is particularly useful as a general tool for simulating nitrogen oxides output and other flame properties of a wide class of combustion applications.

Isbn (Books And Publications)

Computational Methods For Multiphase Flow

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Author

Gretar Tryggvason

ISBN #

0521847648

Dynamics of Bubbles and Vortices Near a Free Surface: Presented at the Asme Applied Mechanics Conference, Columbus, Ohio, June 16-19, 1991

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Author

Gretar Tryggvason

ISBN #

0791807258

Gretar Tryggvason from Baltimore, MD, age ~68 Get Report