bvel

bvel is a term used as an abbreviation in multiple technical contexts to denote velocity-related quantities. There is no single standard definition, and its exact meaning depends on the domain. In physics and astronomy, bvel often stands for bulk velocity, the average motion of a system of particles or celestial objects relative to a rest frame. It is typically a three-dimensional vector and may be estimated from member velocities or spectral measurements. In data formats and scientific datasets, bvel can appear as a field name or column header indicating a velocity component or a derived speed, with the exact interpretation determined by the data schema.

In robotics and computer vision, bvel (or bVel) is sometimes used to denote base velocity or body velocity, representing the velocity of a robot's base or body frame with respect to a reference frame. In programming examples, bvel is commonly used as a generic variable name for velocity in demonstrations or code snippets.

Notational conventions vary by domain; some uses distinguish between vector velocity (three components) and scalar speed (magnitude). Users encountering bvel should consult field-level definitions or accompanying documentation to interpret units, reference frames, and computation methods.

See also: bulk velocity, velocity, velocity field, kinematics, motion planning.