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the types of thermal mangement system 

 there are passive system and active system .

thermal mangement is important for electrochemical devices like batteries 

different cooling methods for the electric and electronic equipement as 

battery cooling 

inverter cooling 

motor cooling 

Two-phase flow-flow of two immiscible (don't mix) mediums. 

flow orientation is important. 

Transient, separated, dispersed - types of two-[hase flow.

Introduction to thermo-fluid dynamics of two-phase flow

what is two phase flow ,  is yhe contact of two immiscible fluids .

definition of differents parameters of two phase flow : we distinguish 

void fraction 

interfacial area concentration 

bubble number density 

energy dissipation rate per unit mass 

superficial phase velocity 

phase velocity 

reynolds number

quality 

the key parameters for two phase flow are mass conservation equation , momentum conservation equation , energy conservation equation 

importants parameters in analysis two phases : 

scaling design 

mechanistic modeling 

computational calculation 

instrumentation development 

experiment