PETSc-FEM CFD simulation of supersonic flow impinging a rod

This benchmark was propoed in Tam & Radovitzky (An algorithm for modelling the interaction of a flexible rod with a two-dimensional high-speed flow, Int J Num Meth Engng, 2005, pp. 1057­-1077). The simulation corresponds to a supersonic flow transverse to an initially-flat structure made of an elastic fabric. The flow is inviscid and slip conditions are assumed on the skin of the plate. Initially, the steady flow is established for the plate at a rigid position and a bow shock is formed. Then the plate is released to bend freely, with the constraint that the plate ends can only slide in the vertical direction. Due to the high difference of pressure between both sides of the plate, it initially bends. An expansion fan is formed behind the plate, during this initial phase. After a point of maximum bending is reached the stiffness of the plate starts to react and the plate straightens to its original position. During this phase the plate reaches

Category:

Science & Technology

Tags:

• finite
• elements
• cfd
• aerodynamics
• fluid
• mechanics
• aviation
• space
• computer

[mariostorti]

thanks

[vizononair]

nice.super,....