On Bell-Turrets

Fluid dynamics and aero-optics of turrets

A summary of research efforts for last several years on fluid-dynamics and aero-optics of hemisphereon-cylinder turrets with flat and conformal windows is presented. The topology of flow behind turrets and both steady and unsteady sources of optical distortions are discussed. Scaling laws for levels of optical aberrations are proposed and results of several experimental studies are compared and...

In-flight aero-optics of turrets

1 Bell on Bohm

A memorial conference for John Bell, open to the public, was held at Rutgers University around 20 years ago. I gave there a short talk on Bell’s views about David Bohm’s “hidden variables” formulation of quantum mechanics, a version of quantum mechanics often called the de Broglie-Bohm theory or Bohmian mechanics. This theory was in fact discovered by Louis de Broglie in 1927. In 1952, it was r...

Global Unsteady Pressure Fields Over Turrets In-Flight

Point pressure measurements were performed on a hemisphere-on-cylinder turret in-flight and in the wind tunnel at the University of Notre Dame. Measurements were performed at a total of 36 different locations on the turret. The pressure coefficients (cp) was analyzed versus viewing angle for each Mach number and were compared with previous experiments and theoretical values based on the potenti...

Review on Bell-Steinberger relations

We illustrate shortly the motivations to search for CPT violation in kaon decays, then we outline the derivation of the Bell-Steinberger relations. Mostly we focus on determination from the Bell-Steinberger relations of the CPT violating parameters in the kaon system