Events for 09/24/2014 from all calendars

Numerical Analysis Seminar

Time: 3:00PM - 4:00PM

Location: BLOC 628

Speaker: Goong Chen, Texas A&M University

Title: Malaysia Airlines Flight MH370: A Numerical Simulation Study of Airplane Crash and Water Landing

Abstract: On March 8, 2014, Malaysia Airlines flight MH370 disappeared one hour after take-off on a route from Kuala Lumpur to Beijing. Its mysterious fate is one of the most intriguing stories of the year 2014. Its search and recovery operation also has constituted the most expensive one in the aviation history so far. In this talk, the speaker will first revisit the mathematical problem as a classical water-entry problem in applied mathematics. Then the entry of an airliner into the ocean will be modeled as a two-phase fluid-structure interation problem with compressible aero-hydrodynamics and six-degree of freedom of motion. Numerical simulations are performed by using the OpenFOAM software. Several video simulations of dynamic motion of an airliner flying into the ocean will be shown. Impact damage will also be assessed based on the analysis of the Space Shuttle Challenger disaster. This is joint work by G. Chen, C. Gu, P.J. Morris, E.G. Paterson, A. DSergeev, Y.-C. Wang and T. Wierzbicki.

Promotion Talk for Professor Gregory Pearlstein

Time: 4:00PM - 5:00PM

Location: BLOC 220

Speaker: Professor Gregory Pearlstein, Texas A&M University

Description:

Title: Normal functions and the Hodge conjecture.

Abstract: The theory of normal functions and the Hodge conjecture have their origin in the study of algebraic cycles by Lefschetz and Poincare. I will sketch the history of the subject and discuss some of my recent work on singularities of normal functions to the Hodge conjecture and the zero locus of a normal function to a conjectural filtration of Bloch and Beilinson.

AMUSE

Time: 6:00PM - 7:00PM

Location: BLOC 166

Speaker: Dr. Jay Walton, Texas A&M University, Department of Mathematics

Title: TBA