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(VII) considerations in model experiment

• Similarity: dynamic similarity and geometry
similarity

• Archimedes Number = : buoyant force vs. inertia
force

• Grashof Number = :
buoyancy force vs. viscous force

• The ratio of radiation heat to convective heat

since radiation acts as a secondary convective heat, the
model and the real situation should have the similar value to predict parameters
out of model.