Investigation on drag reduction with contour bump located on a supercritical airfoil;

By using macro examination,ultrasonic wave inspection,hardness test,metallurgical examination and gas analysis,the overall analysis for the cause of bulge occurred on the inner surface of liquefied petroleum gas spherical tank was carried out.

Cirterion of gun tube s failure,caused by inner bulge due to impaction by fragments of high eaplosive projectile,is researched.

A computational study based on the Cartesian grid method and Euler solver for the three\|dimensional inviscid flow around a fin with a bulge has been conducted.

Initial Discussion Concerning Solution of BulgingOccurring in Light-wall Steel Tube Formation Process;

Skirt cracking and shell bulging is the major reason for coke drum to lose its efficient.

The formation mechanism of bulging and cracking of combustor inner liner and his influence on gas turbine exhaust temperature dispersity was analyzed.

It is pointed out that cracks,bubbles and corrosion are the main defects.

Bubbles caused by laser irradiation can be observed usually via microscope during the experiments of laser induced damage of films,each bubble looks large and very symmetry.