variations.TheresultsofthevariationsC2_S1,2and C1,2_S1willbedescribedforbothdisplacementventilationandmixingventilation.However,asthemixingventilationdoesnotcreatearatherdistinctiveairmovementin thespace,onlytheairflowpatternwithdisplacementventi8 lationwillbeshownschematicallyFigs.7and10