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Foundation ::
Aerodynamics Applications ::
PCPANEL_PNLGRF
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PCPANEL_PNLGRF
A Flow Solver for Single/Multi-Element Airfoils and Turbomachinery Blade Rows
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SOURCE CODE AVAILABLE
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PCPANEL/PNLGRF uses an integral equation solution (panel method) to solve two dimensional fluid flow problems on a personal computer. The solution method solves
approximate governing equations of motions for the blade-toblade, steady-state flow problems in turbomachinery and has been used for several years in the design of
turbomachinery blading.
PNLGRF is an interactive graphical interface program written specifically to allow visual analysis of the flow solutions generated by
PCPANEL. It gives engineers a very rapid means of assessing a design's aerodynamic potential.
The combination of PCPANEL and PNLGRF provides designers a
powerful yet cost effective tool. The run time for the flow solver is measured in minutes on PCs of modest power. As a result, the amount of man-hours required to
design and analyze aerodynamic shapes is minimized.
The working fluid is assumed to be inviscid, irrotational, and a perfect gas. The integral equation solution used by PCPANEL calculates the flow around single or
multi-element blade shapes that lie on a surface of revolution. It also can calculate flows through planer cascades and around isolated airfoils. The solution has
demonstrated good isolated airfoil results for subsonic flows of Mach number 0.5 or less. Turbomachinery blade-to-blade flow solutions can be made for transonic
flows; however, the method does lose accuracy with increasing Mach number. Turbomachinery solutions are the most accurate for flows with Mach numbers below 0.9.
PCPANEL's output includes the effects of compressibility, radius change, blade-row rotation, and variable stream sheet thickness. The compressible flow output is the
most useful to the user. A summary of the solution, the integrated force coefficients, and details of the flow on the body surface are given.
PCPANEL/PNLGRF carries the NASA case number LEW-16325. It was originally released as part of the COSMIC collection.
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