| Popis: |
In this investigation, a geometry of three-block obstacles has been studied under the explosion of a green high-energy metal organic framework (HE-MOF) martial with the implementation of a computational fluid dynamics (CFD) domain. Control volume generated mesh in SnappyHexMesh was utilized with boundary conditions and initial values to resolve the system of equations in explosiveSonicFoam (a modified module of OpenFoam technology). The numerical simulation method was validated using the experimental data obtained by Kingery-Bulmash trinitrotoluene (TNT). The large eddy simulation (LES) method as a turbulence model and the Beker-Kistiakowsky-Wilson (BKW) model as a real gas equation of state were employed to enhance the accuracy of simulations. [Cu(Htztr)2(H2O)2]n was selected as HE-MOF due to its appropriate explosive specifications, which come from its special chemical structure. Pressure history on the domain has been measured at various points. TNT equivalency validation had shown a deviation error of 3–14% and 20% for overpressure and impulse, respectively in comparison with Kingery-Bulmash empirical data. Further, it was shown that block structures reduced 26.4% of peak incident pressure. The results of the current study suggested that HE-MOF produced an impulse of 2.5 and 2.28 greater than TNT in the non-obstructed and the obstructed sides of the explosion, respectively. Supersonic flow visualization clearly showed positive reflected and incident pressure surface. The comparisons between TNT and selected HE-MOF demonstrated higher blast wave intensity and under-effected areas of HE-MOF. |
