Science

• Apteronotus albifrons, a fish known as the black ghost knifefish, commonly abbreviated to BGK in aquarium literature
  Fishkeeping
  Fishkeeping is a popular hobby concerned with keeping fish in a home aquarium or garden pond. There is also a fishkeeping industry, as a branch of agriculture.-Types of fishkeeping systems:...
  
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• Bhatnagar-Gross-Krook
  Bhatnagar-Gross-Krook
  The Bhatnagar–Gross–Krook operator term refers to a collision operator used in the Boltzmann Equation and in the Lattice Boltzmann method, a Computational fluid dynamics technique...
  
   is a scheme used in Lattice Boltzmann methods
  Lattice Boltzmann methods
  Lattice Boltzmann methods is a class of computational fluid dynamics methods for fluid simulation. Instead of solving the Navier–Stokes equations, the discrete Boltzmann equation is solved to simulate the flow of a Newtonian fluid with collision models such as Bhatnagar-Gross-Krook...
  
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