Gurney equation
WebThe Gurney equations are a set of mathematical formulas used in explosives engineering to relate how fast an explosive will accelerate a surrounding layer of … WebSep 19, 2024 · For a trap-free single layer single carrier (hole-only or electron-only) organic device of thickness d, dielectric constant ε r, and mobility μ, the relation of current density j with voltage V is described by the well-known Mott–Gurney equation, j = 9 ε 0 ε r μ V 2 / 8 d 3, which can be rewritten as j = G V, where G = 9 ε 0 ε r μ / 8 d 3 can be called space …
Gurney equation
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Webequation of state [3-4] for an explosive. The Gurney equations are a set of mathematical formulas used in explosives engineering to determine the capability of a detonating explosive to accelerate a surrounding layer of inert material. The Gurney velocity can then be used to estimate fragment velocities, for example. The JWL WebThe presented solutions reduce to all the known Gurney formulas for the more simple geometries at the appropriate limits. The accuracy of the predictions by the obtained …
WebThe traditional Gurney equation for energy density is found to be 3–8 % low compared to Cylinder test results. The suggestion is made to divide the Gurney energy by the square … WebA general form of the Gurney equation which can be used for different geometries is given in the Gurney equations in this section. It may be used to analytically predict expected fragment initial velocities. These …
First proposed by Clement D. Child in 1911, Child's law states that the space-charge-limited current (SCLC) in a plane-parallel vacuum diode varies directly as the three-halves power of the anode voltage and inversely as the square of the distance d separating the cathode and the anode. For electrons, the current density J (amperes per meter squared) is written: WebImploding Spherical Equation. A special case is a hollow sphere of explosives, initiated evenly around its surface, with an outer tamper and inner hollow shell which is then …
WebThe traditional Gurney equation for energy density is found to be 3–8 % low compared to Cylinder test results. The suggestion is made to divide the Gurney energy by the square …
WebJun 4, 2015 · J~V^2/d^3 is the classic relation (Mott-Gurney law) valid for constant (and low) mobility at sufficiently high (but not very high) bias. J~V^ (2+n)/d^ (3+n) is SCLC with trap filling. Waranantha... schedulablecontext test classWebApr 12, 2024 · In this paper, a pitching NACA 0012 airfoil is simulated in the slip flow regime by solving the Navier–Stokes equations subjected to the Maxwell slip and Smoluchowski jump boundary conditions. The rhoCentralDyMFoam solver of the OpenFOAM software has been modified to handle these boundary conditions. The effects of several parameters … schedulability testingWebSep 23, 1996 · The Gurney problem of the acceleration of liners by explosive charges having rigid cores is rigorously examined, and new … schedulable class apexThe basic Gurney equations for flat sheets assume that the sheet of material is a large diameter. Small explosive charges, where the explosive's diameter is not significantly larger than its thickness, have reduced effectiveness as gas and energy are lost to the sides. See more The Gurney equations are a set of mathematical formulas used in explosives engineering to relate how fast an explosive will accelerate an adjacent layer of metal or other material when the explosive detonates. This … See more When an explosive adjacent to a layer of a metallic or other solid material detonates, the layer is accelerated both by the initial detonation shock wave and by the pressure of the … See more • Nuclear weapon See more Cylindrical charge For the simplest case, a long hollow cylinder of metal is filled completely with explosives. The … See more • Explosives engineering • Explosive velocity • Table of explosive detonation velocities See more russells water commonWebMar 5, 2024 · The Gurney equations relate the following quantities: C - The mass of the explosive charge M - The mass of the accelerated shell or sheet of material (usually metal). The shell or sheet is often referred to as the flyer, or flyer plate. V or Vm - Velocity of accelerated flyer after explosive detonation russell street motors burton on trentWebGurney definition, a flat, padded table or stretcher with legs and wheels, for transporting patients or bodies. See more. russells washing machinesschedulable definition