Experience

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  Rotating Machinery Services, Inc.

  • Neenah, Wisconsin, USA

  • Aerodynamics Consultant/Programmer

    • Nov 2019 - Present
    • Neenah, Wisconsin, USA

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  General Electric Co - Oil & Gas Division

  • CONSULTING ENGINEER

    • Dec 2009 - Dec 2012

    Providing expert input into the design of new compressor stages and components.Conducting Design Reviews and writing and reviewing Aerodynamic DesignPractices and Design Templates. Resolving field issues at customer sites.

  • SUPERVISOR of AERODYNAMICS/PRINCIPAL ENGINEER

    • Sep 2001 - Dec 2009

    Supervision of a team of Engineersto research and develop high efficiency centrifugal compressors. Supervisor of allaerodynamic activities for GE Oil & Gas, (North America), including CONMECaerodynamic group in Bethlehem, PA.Developed and continue to improve/maintain new Visual Basic interfaces for all ofthe original A-C Compressor Fortran aerodynamic and mechanical sizing/designcodes for user-friendliness, producing significant cost savings during applicationengineering and design cycles.Recipient: Best Global New Product Introduction Award, GE Oil & Gas, 2008.

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  A-C COMPRESSOR CORPORATION

  • STAFF CONSULTANT

    • May 1990 - Sep 2001

    Designing single-stage centrifugal, multi-stage centrifugal, and oil-free screwcompressors for petrochemical, air-conditioning, and other industrial applications.Responsibilities included: definition of the aerodynamic flow path and designing ofcomponents to meet desired power, head and efficiency; specification of appropriateeye seals, balance pistons, shaft sizes, guide vanes, return passages, and other relatedcomponents to meet customer and/or A.P.I. requirements.Providing aerodynamic consulting services to various groups within A-CCompressor especially to the Application Engineering group involved in initialselection and sizing of equipment.Developing Fortran-based computer programs for the aerodynamic selection, sizingand analysis of centrifugal and screw compressors.Chairman, A-C Compressor Technology Committee: This committee wasresponsible for providing technological development guidance (1998 – 9/01).Making presentations at customer sites on A-C Compressor technology.Supervising the work of less experienced engineers, student co-ops, and draftsmeninvolved in the layout of compressor components.

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  AVCO Reserach Labs

  • PRINCIPAL RESEARCH ENGINEER

    • Jul 1985 - Feb 1990

    Developed and used Computational Fluid Dynamics programs for the design andanalysis of the unsteady flow in pulsed lasers. Developed a 2-D sharp shock-capturingscheme for the resolution of the acoustic waves present in pulsed laser cavities.Developed a transient 2-D computer program for predicting and compensating forthermal blooming effects during laser beam propagation through the atmosphere.Developed a computer program for determining the location and ocean surface areacovered by a ground based laser beam reflected off a satellite.Applied 3-D finite element codes obtained from Lawrence Livermore Laboratories forcalculation of heat transfer from laser devices.Developed a computer program for the modeling of an acoustic wave pump.Supervised the work of computer scientists involved in the development of these codes.Prepared and presented technical reports to management and customers as necessary.

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  GENERAL ELECTRIC COMPANY

  • DEVELOPMENT ENGINEER

    • Dec 1983 - Jul 1985

    Developed 2-D/3-D Euler and Viscous Flow codes for the design ofcentrifugal compressors.Designed centrifugal compressor blading using commercially available design codes.Reviewed the production of aerodynamic components to ensure adherence to designobjectives.

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  UNITED TECHNOLOGIES - CARRIER

  • RESEARCH ENGINEER

    • Jul 1980 - Nov 1983

    Developed a 2-D CFD scheme for predicting flow in centrifugalcompressors used in air-conditioning and other industrial applications.Performed experiments leading to the improved design of vaned diffusers.

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  Iowa State University

  • Research/Teaching Assistant

    • Sep 1977 - May 1980

    Taught undergraduate courses in Fluid Mechanics.3Supervised less experienced Teaching Assistants.

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  Kwame Nkrumah University of Science and Technology

  • Lecturer

    • Jan 1973 - Jul 1977

    Taught undergraduate courses in Fluid Mechanics and Thermodynamics.Supervised senior theses.

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  SINGER COMPANY

  • MANUFACTURING ENGINEER

    • Apr 1969 - Feb 1971

    Responsibilities included all engineering aspects of the production of hardware (ElectronicCalculators) from manufacturing evaluation of the R&D prototype to final assembly.PhD THESIS RESEARCH TOPICViscous Fluid Buckling: A Theoretical and Experimental Analysis with Extensions toGeneral Fluid Stability.