This semester we are continuing to perform research for DARPA on analytical methods for hypersonic aerodynamics. It is a difficult task. My new students are transitioning well and former students are excelling in their new careers. I am teaching a new course on turbulence modeling. This should be placed online for everyone near the end …
Category Archives: Research
Foundations of Turbulence
The mathematical formulation of the problem of homogeneous turbulence is this: Given an infinite body of uniform fluid in which motions conform to the equations and, and given that at some initial instant the velocity of the fluid is a random function of position described by certain probability laws which are independent of position, to …
Acoular
http://www.acoular.org/ My students and myself have had some good luck with the open source and free software package Acoular. We used it to try and visualize the acoustic source distribution within a tornado. It worked fairly well, but of course the technique is dependent on the quality of data used. This is generated by CFD …
Andrei Nikolaevich Kolmogorov – A Digital Tribute
http://kolmogorov.com The great Academacian Andrei Nikolaevich Kolmogorov, who pioneered turbulence theory and started the Russian school, has fans overseas (big surprise!). I always wanted to create a website with a collection of his pictures, portraits, important articles, and anything else I could find online or off. Someone of course beat me to it! A recommended …
Continue reading “Andrei Nikolaevich Kolmogorov – A Digital Tribute”
HiFiLES High Fidelity Large Eddy Simulation
https://hifiles.stanford.edu/ My students and myself were impressed with the Stanford University release of HiFiLES, a large-eddy simulation solver for turbulent flows. We were able to use it successfully in our Office of Naval Research Grant. In fact, our modifications were released for free with an in-built acoustics solver. These codes are free of charge to …
Continue reading “HiFiLES High Fidelity Large Eddy Simulation”
Generalized Burgers’ Equation
Compressible Boundary Layer Profiles
Ballistic Missile Reentry Vehicles
NASA LaRC 4-Foot Supersonic Unitary Plan Wind Tunnel
Navier-Stokes
The Navier-Stokes equations holds its master in its own bonds, shackling the mind and brain so that the inner freedom of the very strongest must suffer.