# CFD of gas Turbine blade

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 September 12, 2011, 14:16 CFD of gas Turbine blade #1 New Member   Ali Raza Join Date: Sep 2011 Posts: 5 Rep Power: 7 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?

September 12, 2011, 14:21
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Ali Raza
Join Date: Sep 2011
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Quote:
 Originally Posted by Ali Raza Abid 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

 September 12, 2011, 14:34 CFD of gas Turbine Blade #3 New Member   Ali Raza Join Date: Sep 2011 Posts: 5 Rep Power: 7 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?

 September 12, 2011, 15:24 #4 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,285 Blog Entries: 6 Rep Power: 43 Comparison of fluent and CFX for turbomachinery check reply no 5 with real results in pdf file

 September 12, 2011, 15:32 #5 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,285 Blog Entries: 6 Rep Power: 43 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

 September 12, 2011, 15:36 #6 New Member   Ali Raza Join Date: Sep 2011 Posts: 5 Rep Power: 7 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

 September 12, 2011, 15:49 #7 Super Moderator   Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,285 Blog Entries: 6 Rep Power: 43 inlet the total pressure total temprature flow angle (from NGV) outlet static pressure

 September 13, 2011, 01:55 #8 New Member     sabin mathew Join Date: Sep 2011 Location: Mumbai Posts: 18 Rep Power: 7 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 Sabin Mathew

 September 14, 2011, 13:56 #9 New Member   Ali Raza Join Date: Sep 2011 Posts: 5 Rep Power: 7 ok i will periodic boundary conditions kindly guide me what initial conditions and solvers i should use in FLUENT V 6.4?

 February 18, 2012, 06:04 #10 New Member   JAGAN RAJ Join Date: Feb 2012 Location: chennai Posts: 1 Rep Power: 0 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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