Based on the traditional theory of non-isothermal jet,a study on the interaction between the plumes and non-isothermal air jet is reported.The mathematical model is established to describe the thermal buoyant effect of the plumes generated by the indoor heat sources on the indoor non-isothermal air jet.The influences of the form,power and location of indoor heat sources on the non-isothermal air jet and the indoor thermal comfort are investigated experimentally.The results show that the thermal buoyant effe...