Page 12 - ASME HT FE ICNMM 2016 Program

Plenary Sessions

PLENARY TITLE: VERIFICATION AND PLENARY TITLE: HOW CAN THERMAL
VALIDATION IN FLUIDS ENGINEERING: SOME SCIENCE AND ENGINEERING HELP
CURRENT ISSUES (FLUIDS ENGINEERING) DECARBONIZE THE GLOBAL ENERGY
DATE/TIME: MONDAY, JULY 11, 8:30 AM – 10:10 AM SYSTEM (HEAT TRANSFER)
DATE/TIME: MONDAY, JULY 11, 10:30 AM – 12:10 PM
Room: Regency BC
Presenter: Room: Regency BC
Presenter:
Patrick J. Roache
Arun Majumdar, Stanford University

Session Description:
The presentation will begin with a very brief review of some basic Session Description:
accepted concepts familiar to V&V specialists in Computational Fluid It is now undoubtedly clear that over the next several decades the world
Dynamics and similar fields: concepts of Verification, Validation, and should and will decarbonize the global energy system, which will
Uncertainty Quantification; use of the Method of Manufactured Solutions introduce massive changes to how we provide for electricity, heating and
and other benchmarks for Code Verification; the Grid Convergence Index cooling, and mobility. These changes naturally provoke the questions:
and some variants, especially Least Squares GCI, for Solution Verification; How can we achieve this in the most economical manner? What are the
an alternative success metric for discretization error estimates; and the science and engineering challenges involved? Where does thermal
ASME V&V20 method for evaluating a Validation Metric. Then more science and engineering and transport phenomena fit into this larger
current issues will be considered: the forthcoming ASME V&V20 Supple- landscape? What thoughtful policies should we create to accelerate
ment addressing multiple set points in space and/or time; application of development and adoption such technologies?
the GCI to unstructured grids; a natural range for the factor of safety in the
GCI; "roll-up" (propagation) of uncertainty estimates through complex In many ways, this is a strategically opportune time for engineers to rise to
systems; combining disparate types of uncertainties (aleatory and the occasion and deliver solutions during a period of changing global
epistemic); the important concept of a validation experiment; the possible paradigms. This talk will discuss a number of strategic opportunities and
"immunity" of a good Validation exercise to model form uncertainty; the engineering challenges that, if adequately addressed, could be
weakest link in CFD Validation, which is uncontrolled experiments; the game-changing for transforming our energy system.
falsificationism of philosopher of science Karl Popper as (mis)applied to
Speaker Bio:
computational physics; trend Validation of climate models; and personal
Arun Majumdar is the Jay Precourt Professor at Stanford University, where
opinions on current State of the Art, and State of the Practice, in V&V.
he serves on the faculty of the Department of Mechanical Engineering and
Speaker Bio: is the co-Director of the Precourt Institute for Energy that integrates and
Dr. Roache specializes in Computational Fluid Dynamics, especially coordinates research and education activities across all seven Schools
Verification and Validation. He wrote the original (1972) CFD book and the Hoover Institution at Stanford. He is currently leading major
Computational Fluid Dynamics (translated into Japanese, Russian, and initiatives at Stanford such as modernizing the electricity grid, renewable
Chinese), the original V&V book Verification and Validation in Computa- fuels and energy access in emerging economies all of which coherently
tional Science and Engineering (1998), and their successors. He wrote a integrate innovations in technology, economics, markets, finance,
chapter for Annual Reviews of Fluid Mechanics and, with Prof. Dominique business models, regulatory frameworks and policies, with deep
Pelletier, for Handbook of Numerical Heat Transfer. Algorithm develop- engagement from global corporations, early-stage companies, non-gov-
ment contributions included elliptic marching and semidirect methods, ernmental organizations and policy makers. Prior to joining Stanford, Dr.
domain decomposition, pseudospectral and multigrid methods, modified Majumdar was the Vice President for Energy at Google, where he led
method of characteristics, and solution adaptive and variational grid several initiatives that integrated energy and information technologies,
generation. He and his staff at Ecodynamics were instrumental in and advised the company broadly on its energy strategy. In October
Performance Assessments for the DOE WIPP. With Prof. Stanly Steinberg, 2009, Dr. Arun Majumdar was nominated by President Obama and
he contributed to Symbolic Manipulation use in CFD. He was heavily confirmed by the Senate to become the Founding Director of the
involved in the movement to establish journal publication standards for Advanced Research Projects Agency - Energy (ARPA-E), where he served
V&V, in V&V committees of ASME, AIAA and ASCE, and in the three Lisbon till June 2012 and helped ARPA-E become a model of excellence for the
V&V Workshops. His pioneering development of the Grid Convergence government with bipartisan support from Congress and other stakehold-
Index (GCI) and the Method of Manufactured Solutions (MMS) provided ers. Between March 2011 and June 2012, Dr. Majumdar also served as the
widely accepted standards for Code Verification and Solution Verification Acting Under Secretary of Energy with a portfolio that consisted of the
respectively. In A Defense of Computational Physics (2012) he critiqued Office of Energy Efficiency and Renewable Energy, the Office of Electricity
12 philosopher Karl Popper's falsificationism, that scientific theories can only Delivery and Reliability, the Office of Nuclear Energy and the Office of
be falsified, removing this impediment to practical model Validation. Fossil Energy, all reporting to him. Furthermore, he was a Senior Advisor
to the Secretary of Energy on a variety of matters related to management,