Local Velocity Estimate with Constant if too few Particles

Local Velocity Estimate with Constant if too few Particles

This option is a combination of [C Constant predicted velocity] and [Local velocity estimate]. If there are sufficiently many particles for which the velocity is known in the neighbourhood of the new particle, then the local mean velocity is used to estimate the new particle velocity. However, if there are no particles with known velocity, then the specified constant velocity is used. For between one and five particles, a weighted mean of the two limits is employed.

Expected x component of velocity when no particles for local mean (world units per second) ?

This entry specifies the expected x velocity for a new particle if there are no particles of known velocity in the neighbourhood. The velocity is specified in world units per second.

Expected y component of velocity when no particles for local mean (world units per second) ?

This entry specifies the expected y velocity for a new particle if there are no particles of known velocity in the neighbourhood. The velocity is specified in world units per second.

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Stuart Dalziel, last page update: 19 February 1996