报 告 人：Foluso Ladeinde
报告时间：4月8日（星期三）9:00-10:00
报告地点：特种实验楼二楼学术报告厅
报告人单位： 纽约州立大学
报告题目：Modeling of High-Speed Combustion
报告摘要：
The flamelet approach has been proposed by some as a highly promising
procedure for modeling turbulence-combustion interaction in scramjets
because of the method’s ability to affordably handle detailed kinetics.
Five recent contributions to supersonic combustion modeling,
collectively processed in a special section organized by the present
author, were published in the AIAA Journal [AIAA Journal Vol. 48, No.3,
2010]. The papers appear to represent the state-of-the-art of scramjet
combustion modeling. The present author was also an integral part of an
AFRL-funded team that recently enhanced the supersonic combustion
capabilities in VULCAN, by making the code to be high-order, improving
the large-eddy turbulence models in it, adding two-phase flow
capabilities, as well as enabling VULCAN to affordably employ detailed
kinetic mechanisms via the flamelet approach. Despite the progress in
supersonic combustion modeling, more work is needed, including the
development of the precise models for the unstart phenomenon and
affordable turbulence/combustion models. Recently, we started to
investigate the various ways in which pressure comes into the picture,
although with a current focus on pressure effects due mainly to high
speed. Our approach is based on close-form analytical solutions, or
triple-deck asymptotic theories, that explicitly express the reaction
rate as a function of Mach number and/or pressure and temperature. This
study thus allows us to assess the validity of the pressure-based
reaction rate scaling that has recently been introduced into high-speed
combustion modeling. We are also investigating the use of the
characteristics method to analyze three-dimensional supersonic
combustion. At the presentation, we will discuss the fundamentals and
how our analytical results compare with numerical data.
报告人简介：
Dr. Ladeinde received his B. Sc. degree from the Faculty of Technology,
University of Ibadan (Nigeria), which was formerly a College of the
University of London. He moved to the United States in 1981. Since then,
he has earned several post-graduate degrees at Cornell University,
Ithaca, New York, including his Ph.D. in Mechanical and Aerospace
Engineering in 1988. He worked for several years as a high-performance
computing (HPC) software developer before joining the faculty of the
State University of New York, Stony Brook in 1991 as an Assistant
Professor of Mechanical Engineering, where he has since been promoted
and tenured. Dr. Ladeinde is a Visiting Professor and a Summer Faculty
Fellow of the United States Air Force and the United States National
Research Council, and a Visiting Scientist at the United States
Department of Energy at the Brookhaven National Laboratory. He has
chaired the External Review Board of the NASA Center for Aerospace
Research at North Carolina (NC) A&T University in Greensboro, NC. Dr.
Ladeinde has produced over 250 publications in
internationally-recognized archival journals (including The Journal of
Fluid Mechanics, Physics of Fluids, and The AIAA Journal) and
peer-reviewed conference proceedings. He has served as an Associate
Editor (2009-2014) of the AIAA Journal, the flagship journal of the AIAA,
as well as a Book Reviewer for Cambridge University Press in the area of
theoretical fluid dynamics. Dr. Ladeinde’s 2010 paper on scramjet
computer simulation won AIAA Best Paper Award. He is a Fellow of ASME, a
Life Member and an Associate Fellow of the American Institute of
Aeronautics and Astronautics (AIAA), a Life Member of APS, and the
Chairman of the Department of Mechanical Engineering at SUNY Korea.
