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For Directly enter a value for Hamiltonian H (SI unit: J) The default is 0. The Hamiltonian is typically a function of the particle kinetic energy and any fields which would induce a force on the particles. For example, in 3D the Hamiltonian of a free particle is (px^2+py^2+pz^2)/(2*pt.mp).
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For Manually enter coordinates for the Particle velocity vH (SI unit: m/s) and Hamiltonian Force FH (SI unit: N) based on space dimension.
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The Hamiltonian formulation solves a system of first order ordinary differential equations for the particle coordinate and the particle momentum. Thus, when using the Hamiltonian formulation, the number of degrees of freedom is the same as the Newtonian, first order formulation and twice as high as the Massless, Lagrangian, and Newtonian formulations.
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The Particle Properties node is a default feature for all particle tracing physics interfaces. It is possible to add more than one instance of this Particle Properties node to the same model. When you do so, each instance corresponds to a different species of particle. For example, two Particle Properties nodes could represent ions and electrons, or white blood cells and bacteria.
When two or more species are in the same model, you can decide which species is released by each particle release feature, such as the Release, Inlet, or Release from Grid feature. To do so, select the appropriate Particle Properties node from the Released particle properties list in the physics feature Released Particle Properties section.
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