Effect of particle spin on the spatio-thermal distribution of incandescent materials released from explosions

  • Eduardo M. B. CampelloEmail author
Technical Paper


This work investigates the influence of particle spin in the overall motion and cooling of incandescent fragments released from explosions and blast-like events. It is an extension of a recent work by Zohdi (Comput Mech 63:701–711, 2018. 10.1007/s00466-018-1617-2), in the sense that particle spin is now incorporated into the problem’s dynamics. We want to assess how this affects the footprint imparted by the particles (with respect to both its size and temperature) on the surface onto which they land after being released. To this aim, we develop a simple computational model based on discrete particle dynamics, with which we are able to compute the trajectories of the fragments and their thermal states over time. Drag forces, Magnus effects, gravitational settling, drag-induced heating, as well as convective and radiative cooling are considered. Numerical simulations are provided to show the extent of the spin effects and illustrate the applicability of the proposed scheme. We believe that simple computational models of the type as shown here may be a useful tool to predict the fragments’ footprint, and thereby help define safety guidelines at places wherein such explosions (or the release of incandescent materials) may occur—such as in industrial facilities, construction sites, military installations, and many other workplaces.


Particles Spin Incandescent fragments Magnus effect Cooling Discrete element method (DEM) 



This work was supported by CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico), Brazil, under the Grant 309748/2015-1.


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Copyright information

© The Brazilian Society of Mechanical Sciences and Engineering 2019

Authors and Affiliations

  1. 1.Department of Structural and Geotechnical EngineeringUniversity of São PauloSão PauloBrazil

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