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Tea Seminar

Model reduction in fluid mechanics: a short tutorial

Event Type: 
Tea Seminar
Date and Time: 
Friday, January 13, 2017 - 4:15pm
Location: 
CTR Conference Room 103
Speaker(s): 
Aaron Towne, CTR Postdoctoral Fellow, Stanford University
Abstract: 

Reduced-order models that capture the essential features of turbulent flows can be used to gain insight into the flow physics, predict quantities of interest, and provide a handle for flow-control efforts.  This talk will compare and contrast a selection of empirical (data-based) and non-empirica

Fractional PDE Modeling of Anomalous Transport with Applications in Fluids

Event Type: 
Tea Seminar
Date and Time: 
Friday, November 11, 2016 - 4:15pm
Location: 
CTR Conference Room 103
Speaker(s): 
Mohsen Zayernouri, Assistant Professor of Computational Mathematics, Science, & Engineering (CMSE) and Mechanical Engineering (ME) at Michigan State University (MSU)
Abstract: 

Fractional PDE models generalize the standard (integer-order) calculus and PDEs to any differential form of fractional orders.

Bumblebees in turbulence: massively parallel numerical simulations

Event Type: 
Tea Seminar
Date and Time: 
Friday, November 4, 2016 - 4:15pm
Location: 
CTR Conference Room 103
Speaker(s): 
Professor Kai Schneider, Centre de Mathematiques et d'Informatique, Aix-Marseille Universite
Abstract: 

Insects fly even under heavy turbulent air flow conditions. To understand the impact of turbulent fluctuations on the aerodynamics of flapping wings, we model a bumblebee with fixed body and prescribed wing motion, flying in a numerical wind tunnel.

Discontinuous Galerkin method for Computational Fluid Dynamics

Event Type: 
Tea Seminar
Date and Time: 
Friday, October 28, 2016 - 4:15pm
Location: 
CTR Conference Room 103
Speaker(s): 
Dr. Yu Lv, Post-doctoral Fellow, Department of Mechanical Engineering, Stanford University
Abstract: 

In recent years, variational-formulation based high-order schemes, such as discontinuous Galerkin (DG) scheme, have demonstrated promising capabilities for CFD applications.

Atomistic Scale Investigations of Supercritical Phase-Transitions

Event Type: 
Tea Seminar
Date and Time: 
Friday, October 14, 2016 - 4:00pm
Location: 
CTR Conference Room 103
Speaker(s): 
Dr. Muralikrishna Raju, Post-doctoral Fellow, Department of Mechanical Engineering, Stanford University
Abstract: 

Atomistic scale simulations are a powerful tool to study supercritical fluids and can provide information that is not accessible experimentally.

Axially homogeneous buoyancy driven turbulence – free convection analog of fully developed turbulent pipe flow

Event Type: 
Tea Seminar
Date and Time: 
Friday, August 12, 2016 - 4:15pm
Location: 
CTR Conference Room 103
Speaker(s): 
Professor Jaywant H. Arakeri, Indian Institute of Science, Bangalore
Abstract: 

Turbulent convection driven by an unstable density difference created across the ends of long vertical tube has many interesting features. Away from the two tube ends, the flow, driven by a linear density gradient, is axially homogeneous.

The Conditional Source-term Estimation (CSE) approach to modeling MILD combustion

Event Type: 
Tea Seminar
Date and Time: 
Friday, June 17, 2016 - 4:15pm
Location: 
CTR Conference Room 103
Speaker(s): 
Mr. Jeffrey W. Labahn, Mechanical Engineering, University of Waterloo
Abstract: 

As governments realize the negative impact of greenhouse gasses on the planet, a drive to reduce our dependence on fossil fuels and switch to renewable clean energy sources has begun.

Dynamics of stratified flow past a sphere: simulations using body-inclusive numerical model.

Event Type: 
Tea Seminar
Date and Time: 
Friday, June 3, 2016 - 4:15pm
Location: 
CTR Conference Room 103
Speaker(s): 
Mr. Anikesh Pal, Department of Mechanical and Aerospace Engineering, University of California San Diego
Abstract: 

Wakes of bluff bodies in a stratified environment are common in oceanic and atmospheric flows. Some examples are marine swimmers, underwater submersibles and flow over mountains and islands.

Large-eddy simulation study of combined configuration and stability effects in wind farms and development of geometry-based models for layout evaluation

Event Type: 
Tea Seminar
Date and Time: 
Friday, May 20, 2016 - 4:15am
Location: 
CTR Conference Room 103
Speaker(s): 
: Niranjan S. Ghaisas, CTR Postdoctoral Fellow
Abstract: 

The diurnal variation of temperature leads to significant deviations from neutral atmospheric stability conditions in the atmospheric boundary layer. Previous field observations have revealed ambiguities in the effect of atmospheric stability on wake losses and power production of wind farms.

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