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CFD of gas Turbine blade

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Old   September 12, 2011, 14:16
Red face CFD of gas Turbine blade
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Ali Raza
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I want to do CFD analysis of a Gas Turbine blade on FLUENT software the known parameters are
Inlet Temp. = 900 C
Inlet Velocity = 700 m/s
Mass flow rate of air = 450 ton/hr
Inlet pressure = 8 bar
Outlet temp. = 600 C
outlet Pressure = 3 bar
I have generated the Grid in GRIDGEN software
Kindly guide me what boundary conditions,inlet conditions and solvers etc i should use to solve my case?
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Old   September 12, 2011, 14:21
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Quote:
Originally Posted by Ali Raza Abid View Post
I want to do CFD analysis of a Gas Turbine blade the known parameters are
Inlet Temp. = 900 C
Inlet Velocity = 700 m/s
Mass flow rate of air = 450 ton/hr
Inlet pressure = 8 bar
Outlet temp. = 600 C
outlet Pressure = 3 bar
Kindly guide me what boundary conditions,inlet conditions and solvers etc i should use to solve my case?
CFD analysis of gas Turbine Blade
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Old   September 12, 2011, 14:34
Red face CFD of gas Turbine Blade
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Ali Raza
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I want to do CFD analysis of a Gas Turbine blade on FLUENT software the known parameters are
Inlet Temp. = 900 C
Inlet Velocity = 700 m/s
Mass flow rate of air = 450 ton/hr
Inlet pressure = 8 bar
Outlet temp. = 600 C
outlet Pressure = 3 bar
I have generated the Grid in GRIDGEN software
Kindly guide me what boundary conditions,inlet conditions and solvers etc i should use to solve my case?
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Old   September 12, 2011, 15:24
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Sijal Ahmed Memon (turboenginner@gmail.com)
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Comparison of fluent and CFX for turbomachinery

check reply no 5 with real results in pdf file
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Old   September 12, 2011, 15:32
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Sijal Ahmed Memon (turboenginner@gmail.com)
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dont you have NGV with rotor blade? if no then you have to specify the angle at inlet (axial and tangential components with radial component = 0; specify the sign of axial and tangential components in accordance of right hand rule)

at inlet specify total pressure and total temperature and at outlet specify the mass flow outlet or corresponding static pressure (which produces the required mass flow rate)

give fluid the required rpm and specify axis direction as per right hand rule. choose x,y or z (with value 1 or -1) as your axis of rotation

keep the default conditions for hub and blade and for shroud : specify it as rotating wall with zero rpm in inertial reference frame

also use the periodic boundary condition for the planes (two identical planes with identical mesh) between adjacent blades
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Old   September 12, 2011, 15:36
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Actually i just want to do analysis of a single blade then what conditions i should use? please clear me sorry for inconvenience i m a bit new in CFD
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Old   September 12, 2011, 15:49
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inlet
the total pressure
total temprature
flow angle (from NGV)

outlet
static pressure
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Old   September 13, 2011, 01:55
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Since you want to do analysis of single blade, first thing you have to do is control volume creation for single blade. I.e separate out your blade from other blades in the problem.

2nd thing will be boundary condition specification. You can specify inlet and outlet according to what you know. Since you are doing single blade analysis common surfaces of blades should be specified as 'periodic boundary condition'. Hope it is clear to you.

All the best
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Old   September 14, 2011, 13:56
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ok i will periodic boundary conditions kindly guide me what initial conditions and solvers i should use in FLUENT V 6.4?
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Old   February 18, 2012, 05:04
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hi,

i need a coordinates to study the analysis process for turbine blades. please give me the link to get them.
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