REMARKS ON THE HISTORY OF COMPUTATIONAL FLUID DYNAMICS (CFD)
M.M. Hafez, Mechanical & Aerospace Engineering, UC Davis
Today CFD (despite obvious limitations) became an indispensable,powerful and affordable tool to understand the physics of fluids Hydrodynamics, Aerodynamics &Gas Dynamics), to simulate phenomena of interest or to predict,design and control the performance of related products or processes in all branches of Space, Earth & Life- Math, Science & Engineering. CFD provides rational approximate answers to fluid problems via solving numerical models using digital computers.
Many researchers claim that CFD was born with the Second World War,after modern computers became available,but actually its root are much older as will be discussed in details with emphasis on the numerical modelling used for industrial applications including convection,diffusion and dispersion effects. There are dozens of independent non-dimensional fluid parameters,let alone the interactions of fluids with solids,heat,chemistry,electromagnetism,etc.Here the discussion will be limited to two parameters Reynolds and Mach numbers for simple geometries and mainly from a personal perspective in aeronautics.In particular three topics will be addressed:
iii) Efficient and practical techniques to solve the resulting nonlinear equations.
The applications will cover Incompressible and compressible,inviscid and viscous flows (with shocks,boundary layers and wakes) as well as viscous/inviscid interaction procedures.
Date(s) - 10/29/2015
4:10 pm - 5:00 pm
1062 Bainer Classroom