FLOWS NEAR A NON-ISOTHERM WALL IN A HIGH RAYLEIGH NUMBER CAVITY - SIMILARITY STUDY

The flow studies in a big cavity, as in a housing room, require import ant materials to keep temperature of the walls and for metrology. Also , it is very interesting to work by similarity in smaller cavities whe re it is easier to control the different parameters. The similarity is confirmed with isotherm walls. The objective of this work is the simi larity validation when there is a non-isotherm vertical wall in a cavi ty. In a scale model, 1/4, we have duplicated the thermal conditions o f a cavity scale 1. with a non-isotherm vertical wall. We have confirm ed that the partial density fluxes are similar, the correlation equati ons are identical, and at last the dynamical curves are in the correct similarity connection.