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Computational Fluid Dynamics ( And Visualization Thereof ). John T. Bell CS 526 at UIC 12 February 2004. What is CFD, and Who Cares ?. Simply put, CFD is the calculation of properties of a flowing fluid. Practical problems may include energy flow, chemical reactions, phase changes, …
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Computational Fluid Dynamics( And Visualization Thereof ) John T. Bell CS 526 at UIC 12 February 2004
What is CFD, and Who Cares ? • Simply put, CFD is the calculation of properties of a flowing fluid. • Practical problems may include energy flow, chemical reactions, phase changes, … • Domain is often ( irregular ) 3D, plus time. • Results may be scalar, but more often are n-D • Relevant industries include automotive, chemical processing, aerospace, HVAC, . . .
Classic Differential Equations • Navier-Stokes: • Continuity: • Cons. Energy:
Conclusions • Computational Fluid Dynamics is an important tool in many branches of science and engineering. • Results are typically n-D, over 3-D plus time. • CFD calculations require simultaneous solution of many sets of differential equations, typically involving 4th order Runge-Kutta in 3-D space. • Visualization of CFD data is an important and challenging problem, requiring clever use of all available visualization tools and skills.
References • Fluent Inc.: Http://www.fluent.com • Schulz, Martin et. al.: “Interactive Visualization of Fluid Dynamics Simulations in Locally Refined Cartesian Grids”. IEEE, 1999. • NASA: http://www.nas.nasa.gov/Research/Tasks/ applications.html and http://www.nas.nasa.gov/Research/ Reports/ Techreports/1992/HTML/RNR-92-013.html • Schroeder et. al.: “The Visualization Toolkit, 3rd Ed.” • SDSC: http://www.sdsc.edu/Publications/GCequations/ • Welty, Wicks, & Wilson, “Fundamentals of Momentum, Heat, and Mass Transfer, 2nd Ed.”, Wiley, 1976. • Press, William et. al.: “Numerical Recipes in C”.