Negative Mach Reflection with Multiple Three-Shock Configurations for Shock Wave Diffraction on a Wedge
نویسندگان
چکیده
Within the framework of Euler equations, a numerical study structure self-similar flow for various types negative Mach reflection during diffraction shock wave by wedge is performed. Along with known modes double and triple reflection, qualitatively new mode multiple three-shock configurations observed. Peculiarities transition from to regular when changing angle are noted. Keywords: wave, configuration,
منابع مشابه
Potential theory for shock reflection by a large-angle wedge.
When a plane shock hits a wedge head on, it experiences a reflection, and then a self-similar reflected shock moves outward as the original shock moves forward in time. Experimental, computational, and asymptotic analysis has shown that various patterns of reflected shocks may occur, including regular and Mach reflection. However, most fundamental issues for shock reflection phenomena have not ...
متن کاملOn shock reflection-diffraction in a van der Waals gas
The problem of a weak shock, reflected and diffracted by a wedge, is studied for the two-dimensional compressible Euler system. Some recent developments are overviewed and a perspective is presented within the context of a real gas, modeled by the van der Waals equation of state. The regular reflection configuration and the detachment criterion are studied in the light of real gas effects. Some...
متن کاملFirst Trace for Irregular Shock Wave Process in Weak Mach Reflection
Referring to von Neumann's words, transition from a twoto a three-shock reflection configuration in the weak domain presents some very considerable theoretical difficulties. It nonetheless remains an observed fact that such a transition does indeed occur in the real world. This paper describes the novel experimental technique and the results which for the first time did yield a "footprint" that...
متن کاملDetermination of Shock Standoff Distance for Wedge at Supersonic Flow
An experimental investigation is conducted to calculate the shock standoff (SSO) distance in front of an acute-angled wedge. For this experimentation, simple water flows channel analysis is carried out. The flow velocity is varied from 13.2 cm/s to 25.5 cm/s increasing in steps of 1 cm/s. A velocity of 13.2 cm/s corresponds to Froude number 1.13 and velocity of 25.5 cm/s to Froude number 1.41. ...
متن کاملPeriodic Wave Shock solutions of Burgers equations
In this paper we investigate the exact peroidic wave shock solutions of the Burgers equations. Our purpose is to describe the asymptotic behavior of the solution in the cauchy problem for viscid equation with small parametr ε and to discuss in particular the case of periodic wave shock. We show that the solution of this problem approaches the shock type solution for the cauchy problem of the in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pis?ma v Žurnal tehni?eskoj fiziki
سال: 2022
ISSN: ['1726-7471', '0320-0116']
DOI: https://doi.org/10.21883/tpl.2022.13.53363.18889