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Hi, I am using particles to represent cone shaped vegetation with N_PARTICLES_PER_CELL=1. As N_PARTICLES_PER_CELL=1, I had assumed that even when I change the mesh size, the particles per cell will remain the same but that did not turn out to be true. Finer mesh had more visible particles than in the coarse mesh. Mass_per_volume remains the same. Should I change mass_per_volume as hit and trail to see more or less the uniform distribution of particles in the cone volume. Please guide! Thanks. |
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Replies: 4 comments 4 replies
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That is what I would expect. |
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I do not understand what you are asking. In any event, |
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To clarify, the total mass of the particles in the cone volume remains the same under grid refinement (respecting the input MASS_PER_VOLUME). The mass per particle decreases as you increase the number of particles (grid cells) in the volume. |
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All quantities associated with the particle are weighted. This includes the drag. There are verification cases discussed in the FDS User's and Verification Guides. |
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All quantities associated with the particle are weighted. This includes the drag. There are verification cases discussed in the FDS User's and Verification Guides.