الفهرس 
Types of Automotive Pumps
Numerical MethodOnly 14 pages are availabe for public view
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Abstract
Rotary positive displacement pumps take a wide range of usage due to its compact size. Moreover, they provide an approximately constant flow at a fixed speed. The sliding-vane pump is a type of rotary positive displacement pumps which have a varied application including fuel pumping, power steering system, circuit lubrication system and automatic transmission system. Fluid behavior costs a lot to be seen inside the pump during operation experimentally. Otherwise, numerical programs which depend on Computational Fluid Dynamics (CFD), became an adequate tool to design and optimize the pump. The basic challenge is that the flow volume changes continuously over the time. Therefore, numerical solver must be able to deform and generate the mesh every time-step. The objective of the current thesis is to investigate the sliding vane pump performance numerically and validate the results with experimental work. A three-dimensional model is used to perform this task. ANSYS-Fluent 16.0 is used to solve Reynolds Averaged Navier Stokes equations (RANS) and turbulence model equations. The precise numerical model includes a wide range of issues, from grid generation to turbulence modeling. These issues have been taken into consideration and the numerical results are compared with the results of the experiment which conducted in the lab. The model has given a similar result to the experiment results, with a deviation less than 6% in the flow rate. Accordingly, different parameters are used to examine the performance of the vane pump including the number of vanes and the gap height between the vane tip and stator, at different rotational speeds and pressures. Numerical results for the model with eight-vanes and the model of 0.1 mm gap height gave the largest flow-rate and the best performance as well.