Smooth T has got a similar facelift like Smooth C. At this opportunity general improvements of the user interface have been made and the technical content was enriched. Here is the list of major changes:

• Standard window size 768*1024 pixel
• Easier to recognize buttons with text, like in GasTurb 11
• Four picture view is standard, the individual graphs are resizable for better accuracy
• Lines of constant blade jet-speed velocity ratio help when selecting an adequate beta line grid.
• New features for adapting a map to data known from a cycle program or from a computer deck:
• Improved presentation of the cycle data in many graphics
• View the deviation of the given data from the map values in a special graphic
• Adapt the turbine exit swirl to given data
• Option to assign a nozzle guide vane throat Mach number, flow and work coefficients to a map reference point
• The new plot with throat Mach number as function of turbine pressure ratio allows checking the corrected flow values: is there somewhere unintentionally sonic flow implied?
• Loss characteristic 1 employs now new x-axis values. The typical shape of this form of loss characteristic is linear which makes smoothing efficiency lines easy.
• Rigorous calculation of the flow and work coefficients.
• In earlier versions of Smooth T the turbine inlet velocity was assumed to be proportional to the corrected mass flow which is only true for low Mach numbers.
• All figures employing flow or work coefficient are now valid over the full range
• An estimate for speed line N=0 may be used as a guide for the extrapolation to low pressure ratio values
• Revised editor for measured data input
• Enhanced help system and manual with more turbine physics background

... and of course there are some bug fixes.

Last update
09 Jul, 2009

Copyright © 2009 Joachim Kurzke