Skip to content Skip to navigation

CTR Tea

Transcritical diffuse-interface hydrodynamics of propellants in high-pressure combustors of chemical propulsion systems

Event Type: 
CTR Tea
Date and Time: 
Friday, October 23, 2020 - 4:30am
Location: 
Zoom
Speaker(s): 
Dr. Javier Urzay
Abstract: 

Rocket engines and high-power new generations of jet engines and diesel engines oftentimes involve the injection of one or more reactants at subcritical temperatures into combustor environments at high pressures, and more particularly at pressures higher than those corresponding to the critical p

This talk will address fundamental interactions between shock waves and turbulent flows relevant to high-speed flight and propulsion

Event Type: 
CTR Tea
Date and Time: 
Friday, September 25, 2020 - 4:30pm
Location: 
Zoom
Speaker(s): 
Professor Ivan Bermejo-Moreno
Abstract: 

Shock-induced scalar mixing and ignition under canonical shock-turbulence interactions (STI) will be considered first, by means of Direct Numerical Simulation in 3D and 2D, respectively.

Hydrodynamics of migrating zooplankton aggregations

Event Type: 
CTR Tea
Date and Time: 
Friday, January 24, 2020 - 4:30pm
Location: 
CTR Conference Room 103
Speaker(s): 
Dr. Isabel Houghton
Abstract: 

Biologically generated turbulence has been proposed as an important contributor to nutrient transport and ocean mixing. However, for swimming animals to produce non-negligible transport and mixing, they must produce eddies at scales comparable to the length scales of stratification in the ocean.

Time-Accurate and highly-Stable Explicit (TASE) operators for stiff differential equations

Event Type: 
CTR Tea
Date and Time: 
Friday, January 10, 2020 - 4:30pm
Location: 
CTR Conference Room 103
Speaker(s): 
Dr. Maxime Bassenne
Abstract: 

Unconditionally stable implicit time-marching methods are powerful in efficiently solving stiff differential equations. In this talk, I will present a novel unified framework for handling both physical and numerical stiffness based on Time-Accurate and highly-Stable Explicit (TASE) operators.

Interface dynamics: mechanisms of stabilization and destabilization and structure of flow fields

Event Type: 
CTR Tea
Date and Time: 
Friday, December 13, 2019 - 4:30pm
Location: 
CTR Conference Room 103
Speaker(s): 
Professor and Chair Snezhana I. Abarzhi
Abstract: 

Interfacial mixing and transport are nonequilibrium processes coupling kinetic to macroscopic scales. They occur in plasmas, fluids, and materials over celestial events to atoms. Grasping their fundamentals can advance a broad range of disciplines in science, mathematics, and engineering.

Dynamics of swept shock-wave/turbulent-boundary-layer interactions

Event Type: 
CTR Tea
Date and Time: 
Friday, November 1, 2019 - 4:30pm
Location: 
CTR Conference Room 103
Speaker(s): 
Dr. Michael Adler
Abstract: 

Swept shock-wave/turbulent-boundary-layer interactions (STBLIs) exhibit key dynamical differences from their spanwise-homogeneous counterparts, including the suppression of a dominant mechanism of low-frequency unsteadiness.

Attached eddies in turbulent channel flow: scale interactions and spectral energy transfer

Event Type: 
CTR Tea
Date and Time: 
Friday, October 25, 2019 - 4:30pm
Location: 
CTR Conference Room 103
Speaker(s): 
Dr. Hyun Ji (Jane) Bae
Abstract: 

The resolvent formulation of McKeon & Sharma (2010) is applied to supersonic turbulent boundary layer flows in order to study the validity of Morkovin’s hypothesis, which postulates that high-speed turbulence structure in zero pressure-gradient turbulent boundary layers remains largely the sa

Pages

Subscribe to CTR Tea