I know this is basic question. In Eulerian model the velocities and temperatures are different for continuous and discrete phases.
In this problem:
- For single phase (1% Al2O3 - water nanofluid)
The thermo-physical properties are calculated using nanofluid correlations. from that the velocity is calculated for specific Reynolds number (20,000); let's consider
1% Al2O3 nanofluid velocity (V=2.1425 m/s) (T_inlet= 293K)
- For Eulerian model (1% Al2O3 - water nanofluid) (Re =20,000)
water inlet velocity: V=2.1425 m/s ; (T_inlet= 293K)
Al2O3 Inlet velocity V=2.1425 m/s; (T_inlet= 293K)
Should i have to use same velocity and temperatures for Re=20,000 for Eulerian model. Any suggestions would be really appreciated?
Thank you
This is a turbulent two-phase dispersed flow. I think that one may consider that continuous and discrete phases would have the same instantaneous velocities in turbulent flow if the dispersed phase has a size smaller enough in comparison to Kolmogorov scales in the turbulent continuous phase. As for temperature, and the same way one should compare the time scales related to heat transfer to the Kolmogorov time scale. However, if the flow is isotherm, which seems the case, both phases will have the same constant temperature
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