Abstract
This chapter presents parallel numerical simulations investigating the unsteady process of the interaction of a three-dimensional steady shock wave configuration with a blast wave initiated in the free stream by a focused laser pulse. The chapter investigates capability of such energy addition to force the transition between regular reflection (RR) and Mach reflection (MR). The three-dimensional unsteady Euler equations for a perfect gas with the specific heats γ = 1.4 are solved with a high-order total variation diminishing (TVD) scheme. The Harten–Lax–van Leer–Einfeldt (HLLE) solver is used for evaluation of the numerical fluxes on the inter-cell boundaries because of its robustness for flows with strong shocks and expansion waves. The fact that Mach reflection can be transformed into regular reflection by a focused laser pulse is very important. Indeed, small-level energy results in a complete change in the flow structure. The investigations of the mechanisms of such a forced transition may provide flow control schemes with many practical applications.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
