Reynolds number (RN) is given by (where h = Film coefficient, $$l$$ = Linear dimension, V = Velocity of fluid, k = Thermal conductivity, t = Temperature, $$\rho $$ = Density of fluid, cp = Specific heat at constant pressure and $$\mu $$ = Coefficient of absolute viscosity)
A. $${{\text{R}}_{\text{N}}} = \frac{{{\text{h}}l}}{{\text{k}}}$$
B. $${{\text{R}}_{\text{N}}} = \frac{{\mu {{\text{c}}_{\text{p}}}}}{{\text{k}}}$$
C. $${{\text{R}}_{\text{N}}} = \frac{{\rho {\text{V}}l}}{\mu }$$
D. $${{\text{R}}_{\text{N}}} = \frac{{{{\text{V}}^2}}}{{{\text{t}}{{\text{c}}_{\text{p}}}}}$$
Answer: Option C
Solution (By Examveda Team)
Reynolds number (RN) is given by $${{\text{R}}_{\text{N}}} = \frac{{\rho {\text{V}}l}}{\mu }$$Where h = Film coefficient, $$l$$ = Linear dimension, V = Velocity of fluid, k = Thermal conductivity, t = Temperature, $$\rho $$ = Density of fluid, cp = Specific heat at constant pressure and $$\mu $$ = Coefficient of absolute viscosity
This Question Belongs to Mechanical Engineering >> Heat And Mass Transfer
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