Performance Optimization of Radiator Fan

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Performance Optimization of Radiator Fan

Case Study Highlights Client Profile: Research Scholar, Germany Objective: To optimize the fan performance by achieving desired pressure difference and torque between fan inlet and outlet and also validating the results obtained with experimental data.

The efficiency of automotive radiator is largely dependent on the ability of the fan to force the air draught as much as possible. In order to devise an effective fan design, the primary objective is to maintain desired pressure difference between the fan inlet and outlet. Hi-Tech assisted a research scholar from Germany in developing fan design to maintain the required pressure difference for radiator application. The customer’s primary concern was to develop the fan design to work within the specific pressure difference values.

Challenges: = Developing simulation model to replicate

physical conditions = Identifying physical constraints and boundary

conditions for result accuracy = Modifying fan design to achieve desired

pressure difference and torque values

Solution: The radiator fan design was first evaluated through simulations to obtain pressure difference and torque values. In order to obtain the desired pressure difference and torque, a design modification was done by adding 4 more blades to the existing fan design. The results obtained were satisfactory and were also closely in match with the experimental investigation. Software Used : ANSYS Fluent 14

The Solution The radiator fan with 7 blades was first analyzed through CFD simulations and the pressure difference between the fan inlet and outlet were measured. An experimental investigation was performed for the same configuration, in order to validate the CFD results. To improve the design further, 4 additional fan blades were suggested and flow analysis for the same was performed. Desired pressure difference was obtained through the modified design. Final results obtained were well in sync with the experimental data, validating the CFD setup.This solution can also be provided using OpenFOAM, STAR CCM+, Abaqus CFD, COMSOL Multiphysics.

Benefits = Reducing experimental test trials and associated time

and cost = Modified fan design proving significant for radiator

efficiency

About Hi-Tech

Author: Mehul Patel CFD Consultant

Hi-Tech CAE is a division of Hi-Tech Outsourcing Services, a pioneer engineering outsourcing company since 1992 based in India & USA. It provides expert Computer Aided Engineering - CAE consulting services for engineering / product design analysis by modeling & simulation. The primary services extended include Computational Fluid Dynamics (CFD), Finite Element Analysis (FEA), product design optimization and value engineering services to Automotive, Building / Construction, Process industry, Power Generation, Manufacturing & Heavy Engineering industries.


Phone: +1-408-338-8047 Email: info@hitechcae.com

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