Oral History Interview with Edward J. Drake, 2002

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Interview with attorney and Army Air Forces veteran Edward J. Drake. The interview includes Drake's personal experiences about being a B-17 pilot in the European Theater during World War II, youth and education in Dallas, Texas, enlistment in the Aviation Cadet Program, various training programs, bombing transportation facilities during and after the Ardennes Offensive, crash-landing in Belgium after his plane was hit, and linking up with American troops. Additionally, Drake talks about his assignment to the 91st Bomb Group, the routine for a typical mission, formation flying, flying through enemy flak, rest and relaxation on-base and in London, recuperating from a collapsed lung, his return to combat for three more missions, and his return to the crash site of his plane 57 years later. The interview includes an appendix with "The Last Flight of 'Jezebel,'" written by Drake.
Date: October 16, 2002
Creator: Marcello, Ronald E. & Drake, Edward J.
System: The UNT Digital Library
Radiation Hydrodynamics (open access)

Radiation Hydrodynamics

The discipline of radiation hydrodynamics is the branch of hydrodynamics in which the moving fluid absorbs and emits electromagnetic radiation, and in so doing modifies its dynamical behavior. That is, the net gain or loss of energy by parcels of the fluid material through absorption or emission of radiation are sufficient to change the pressure of the material, and therefore change its motion; alternatively, the net momentum exchange between radiation and matter may alter the motion of the matter directly. Ignoring the radiation contributions to energy and momentum will give a wrong prediction of the hydrodynamic motion when the correct description is radiation hydrodynamics. Of course, there are circumstances when a large quantity of radiation is present, yet can be ignored without causing the model to be in error. This happens when radiation from an exterior source streams through the problem, but the latter is so transparent that the energy and momentum coupling is negligible. Everything we say about radiation hydrodynamics applies equally well to neutrinos and photons (apart from the Einstein relations, specific to bosons), but in almost every area of astrophysics neutrino hydrodynamics is ignored, simply because the systems are exceedingly transparent to neutrinos, even though the energy …
Date: October 16, 2003
Creator: Castor, J. I.
System: The UNT Digital Library