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AXIAL TURBINE 1000 kW RSF C P in 3,0 bar

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Old   April 14, 2011, 10:02
Default AXIAL TURBINE 1000 kW RSF C P in 3,0 bar
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septianta yochi
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hi everyone,

i'm a new member here.

i'm working on my thesis about axial turbine.i've tried to simulate it with sliding mesh that shown in tutorial 11 at fluent tutorial guide. but the result isn't exactly match with my calculation.anyone can help me to evaluate my work?

thanks,
best regards,
ian

*here i append my work http://www.ziddu.com/download/145981...iasi1.rar.html
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Old   April 15, 2011, 00:29
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septianta yochi
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my simulation is in 2D
i'm using steady state then i continue into transient..

Solver : density based - explisit - unsteady - 2nd order Implicit (the other is default)

Viscous model : k-epsilon (default)


Material : user defined ( parameters are based on 3 bar water vapor with ideal-gas density)

Operating Pressure : 0

Boundary Conditions :
  1. inlet stator : pressure inlet : 300000 pascal - turbulent intensity 3.6 % - hydraulic diameter 0.01898 m - temperature 469.4314 K
  2. interface stator
  3. interface rotor
  4. outlet stator : pressure outlet : 128567 pascal - turbulent intensity 3.48 % - hydraulic diameter 0.01898 m - temperature 406.0244 K
  5. fluid rotor : Moving mesh - y velocity 68.3296 m/s
Solution Controls :
  1. relax factor : default
  2. courant number 1 - multigrid levels 5
  3. discret : second order
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Old   April 15, 2011, 00:42
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septianta yochi
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in my calculation the mass flow rate is about 3.5 kg/s, with 72 blades its mean that the mass flow is around 0.048611 kg/s each blade..
but the result in fluent is 1.8 kg/s..

does it mean that i have to use 3D simulation?
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