Firstly, a comprehensive review and a progress in cavitation characteristics of high velocity flow over a surface cylindrical protrusion; Secondly, Three-dimensional Particle Image Velocimetry has been used to study the flow field of high-velocity flows over surface irregularity—cylindrical protrusions.

Welding deformations due to circumferential welds at the joint between the two cylindrical shells.

In order to avoid the deformation,this paper analyzes the deformation mechanism of coke drums,and uses the bending theory of cylindrical shell to reveal the internal force and the displacement of the coke drum body suffering from temperature stress and inner compressive force.

Based on this,a numerical algorithm was given which can be applied to compute the fuzzy reliability of cylindrical shell.

Selection of Calculation Method for Wall Thickness of Cylinder Body in Pressure Equipment;

The magnetic field in the intersection area of two parallel long cylindrical conductors with opposed current is discussed, and it is found that the magnetic field in the intersection area is uniform.

Generally, the traces left on the cylinder objects by pipe-pincers are lines along with sunken traces, whose features can used to analyze the type, specifications of the offending tools and the professional features of the offender, as well as to make analogy experiment for identity of the offending too.