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visits member for 2 years, 1 month
seen Jul 3 at 17:44

Aug
31
awarded  Notable Question
Jul
2
awarded  Popular Question
Mar
29
awarded  Popular Question
Feb
26
revised Diffussivity of gases, molecular weight and Lewis number
added 46 characters in body
Feb
25
revised Diffussivity of gases, molecular weight and Lewis number
added 115 characters in body
Feb
25
revised Diffussivity of gases, molecular weight and Lewis number
edited body
Feb
25
revised Diffussivity of gases, molecular weight and Lewis number
added 57 characters in body
Feb
25
asked Diffussivity of gases, molecular weight and Lewis number
Nov
20
comment Why does the specific thrust of an ideal turbojet drop with increasing compressor pressure ratio?
follow up: Do you know why specific fuel consumption has a minimum if losses are considered?
Oct
30
accepted Why does the specific thrust of an ideal turbojet drop with increasing compressor pressure ratio?
Oct
30
asked Why does the specific thrust of an ideal turbojet drop with increasing compressor pressure ratio?
Oct
11
comment Compressible flow - subsonic to supersonic and the 2nd law of thermodynamics
I just did not see the link between the normal shock solution and the constant area duct. What if there is friction in the variable area duct? Is it still a violation? If my converging diverging nozzle has friction?
Oct
11
asked Compressible flow - subsonic to supersonic and the 2nd law of thermodynamics
Oct
10
accepted Reynolds number and inertial force
Oct
8
awarded  Yearling
Oct
8
asked Reynolds number and inertial force
Sep
24
awarded  Talkative
Jun
14
asked Concerning Mie scattering and phase function dependance
Jun
9
revised Navier-Stokes - Complete set under turbulent eddy viscosity hypothesis
added 376 characters in body
Jun
9
comment Navier-Stokes - Complete set under turbulent eddy viscosity hypothesis
is it not:$-\rho \overline{u'_i u'_j} = \mu_t \, \left( \frac{\partial U_i}{\partial x_j} + \frac{\partial U_j}{\partial x_i} - \frac{2}{3} \frac{\partial U_k}{\partial x_k} \delta_{ij} \right) - \frac{2}{3} \rho k \delta_{ij}$ which simplifies to $- \overline{u'_i u'_j} = \nu_t \, \left( \frac{\partial U_i}{\partial x_j} + \frac{\partial U_j}{\partial x_i} \right) - \frac{2}{3} k \delta_{ij} = \nu_t \, \left( \frac{\partial U_i}{\partial x_j} + \frac{\partial U_j}{\partial x_i} \right) -\frac{1}{3} \left( \overline{u'^2} + \overline{v'^2} \right)\delta_{ij} $