Hanyung Yoo


The CPAC( Centrifugal Pump Analysis Code) is a one-dimensional meanline pump analysis code which predicts performances of centrifugal pumps at design and off-design conditions based on pump geometries and operating conditions. The PC version of the CPAC is based on Loss Isolation Code (LSISO) which was written in the early 1970s for NASA Lewis Research Center and the code developed previously at RIT which runs on VAX/VMS environment. This new version of CPAC is written with Visual Basic Programming language to work on personal computers. CPAC is a menu-driven and userfriendly code with online help manual. The following enhancements were made over previously existing codes Additional features: * Additional pump elements * Nodes based modeling scheme * Individual or multiple elements analysis * Constants or variable fluid properties * English or SI umt input/output * User-friendly interface incorporating - various input options - on-screen input editing - graphical and tabular output displays - graphical and tabular print-outs * Personal computer based software * Reusability of the code Along with online help and the user's manual for program usage make the PC version CPAC a versatile tool for centrifugal turbopump design performance prediction and evaluation. It also offers the capability of predicting other pump configurations such as vaneless diffuser pumps, vaned diffuser pumps, volute pumps, single and multistage pumps, including the crossover elements (turning channel and downcomer) Comparisons of the CPAC predictions to experimental test data for several turbopumps and industrial pumps over a wide range of pump operating speed and flow rates were made, and the results were acceptable as a performance prediction code.

Library of Congress Subject Headings

Turbomachines--Design and construction--Data processing; Turbomachines--Testing--Data processsing

Publication Date


Document Type


Department, Program, or Center

Manufacturing and Mechanical Engineering Technology (CAST)


Ogut, Ali

Advisor/Committee Member

Hefner, Robert

Advisor/Committee Member

Nye, Alan


Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works. Physical copy available through RIT's The Wallace Library at: TJ267 .Y66 1995


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