Numerical modelling of steady detonations with a variational streamline approach

Autor:	Malcolm Cartwright, Sam Falle
Rok vydání:	2021
Předmět:	Physics Steady state (electronics) General Mathematics General Engineering Rate equation Mechanics Curvature 01 natural sciences 010305 fluids & plasmas Shock (mechanics) 0103 physical sciences Streamlines streaklines and pathlines 010306 general physics Shock front
Zdroj:	Journal of Engineering Mathematics. 129
ISSN:	1573-2703 0022-0833
Popis:	Previous studies (Watt et al. in J Eng Math 75(1):1, 2012; Cartwright and Falle in J Eng Math 115(1):157, 2019) have shown that a streamline based approach to modelling of steady state detonations can produce good results for rate laws which have maximal reaction at the shock. In this paper we consider a Variational Streamline Approximation (VSA) which introduces streamline curvature. Comparing results with Direct Numerical Simulations (DNS) and the existing Straight Streamline Approximation (SSA) model, we find that the VSA improves the predictive accurary of streamlines modelling compared to DNS calculations, capturing the shock front and sonic surfaces with greater accuracy than SSA.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f6cf85780820af8995ed08cf300ad65d https://doi.org/10.1007/s10665-021-10149-9 Zobrazit plný text záznamu Full text from SpringerLink