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Two Dimensional Cfd Analysis Of A Hydraulic Gear Pump

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2007 Annual Conference & Exposition


Honolulu, Hawaii

Publication Date

June 24, 2007

Start Date

June 24, 2007

End Date

June 27, 2007



Conference Session

Educational Software

Tagged Division

Computers in Education

Page Count


Page Numbers

12.1506.1 - 12.1506.18



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Paper Authors


Hyun Kim Youngstown State University

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Hyun W. Kim, Ph.D, P.E.
Hyun W. Kim is a Professor of Mechanical Engineering and Director of Fluid Power Research and Education Center at Youngstown State University. He has been teaching and developing courses and research projects in the fluid thermal area. He is a registered Professional Mechanical Engineer in Ohio and is currently conducting applied research in fluid power control and computational fluid dynamics with local industries. Dr. Kim received a B.S.E. degree from Seoul National University, a M.S.E. from the University of Michigan, and a Ph.D. from the Univ. of Toledo.

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Hazel Marie Youngstown State University

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Hazel Marie, Ph.D.

Dr. Hazel Marie is currently an Assistant Professor of Mechanical Engineering at Youngstown State University. In 2004, Dr. Marie received the university-wide Distinguished Professorship Award for Teaching and the Outstanding Teaching Award from the Northeast Ohio Council on Higher Education. Dr. Marie’s current research is focused on CFD modeling of solid-fluid interaction of thin film lubrication in rotordynamic seals coupled with the overall dynamic modeling of adaptive seal – rotor assemblies in turbine engines. Prior to entering academia, Dr. Marie worked as a materials engineer, primarily investigating high temperature copper alloys, and as an automation process engineer both at Packard Electric in Warren, OH. In addition, she currently offers consulting services to local industries.

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Suresh Patil Youngstown State University

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Suresh Patil
Suresh Patil is currently working at Youngstown State University as a Research Associate. He received a B.S. degree in Mechanical Engineering from India and a M.S. in Mechanical Engineering from Youngstown State University in Fall 2006. His research interest is in computational fluid dynamics.

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NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract

Two-dimensional CFD Analysis of a Hydraulic Gear Pump


Development of a productive research and educational program through a strategic focus on technology development in emerging areas such as controls and computing has been one of the primary goals of the mechanical engineering program. Several main initiatives to facilitate the successful development have been implemented. A number of collaborative research and educational projects have been conducted or are in progress, including computational fluid dynamics (CFD) projects and simulation projects for intelligent hydraulic systems, a valve design project and a piston pump-based dynamometer project. This gear pump analysis is one of CFD projects that have been developing in the last few years.

The physical model chosen for this analysis represents P-640 series external gear pumps manufactured by a local fluid power industry. FLUENT, commercially available CFD software, was used to analyze the two-dimensional flow of this industrial gear pump. The investigation produced significant information on flow patterns, velocity and pressure fields, and flow rates. The data clearly showed the phenomena regarding extremely high and low internal pressures that design engineers have encountered in the past. As expected, the accuracy of the computed flow rate for a given model increases as the outlet pressure decreases. It also increases as the speed increases. The results also confirm that the fluid gap size is the most pertinent parameter affecting the pump capacity.

The development of computational projects and research positively affect undergraduate and graduate education in this small mechanical engineering program. The use of commercial CFD software enhances students’ learning and understanding of complex flow phenomena. The experience obtained through this analysis will be incorporated by expanding the computer use in undergraduate design courses and graduate courses.

1. Introduction

Development of a productive research program through a strategic focus on technology development in emerging areas such as controls and computing has been one of the primary goals of the mechanical engineering program at this University. In order to accomplish this goal and expedite the development, the program has been striving to develop a niche area in fluid power and control. The first initiative was to establish a hydraulics research and education center through a partnership with a local hydraulic industry. It acquired a couple of hydraulic and pneumatic trainers for instructional use. However, with a moderate amount of internal and external funding, it was difficult to purchase expensive equipments for research such as hydraulic test cells. Therefore, in order to jump start research program, a decision was made to focus on computational fluid dynamics and motion control simulation. A number of projects have been developed in cooperation with the local fluid power industry, including flow analysis of pumps and simulation projects for intelligence hydraulic systems, and a piston pump-based dynamometer project. In addition, the use of the CFD and motion control software for

Kim, H., & Marie, H., & Patil, S. (2007, June), Two Dimensional Cfd Analysis Of A Hydraulic Gear Pump Paper presented at 2007 Annual Conference & Exposition, Honolulu, Hawaii. 10.18260/1-2--1935

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