Experimental Study And Numerical Simulation On Performance Of Plate-fin Oil Radiator

Plate-fin oil radiator is an important part of oil system on engineering machine, and there are higher and higher needs with the optimized design and performance verifying to it. Owing to the complexity about the structure and the law of the heat-transfer & fluid-flow, it's difficult to do theoretic analysis, also the wind tunnel test may spend long periods, high costs, the limitation is obvious. This paper treat the plate-fin oil radiator as a research object, analyses it's work principle, establishes it's mathsmatic model, numerical simulates the law of the heat-transfer & fluid-flow in the fluid pass, also validates and contrasts the results with the wind tunnel test, to look for a sort of economic and effective research methods. The main content of this paper are as follows:â‘ Describe the ZL50G plate-fin oil radiator's structure, manufacture craftwork and characteristic parameters, analyse the oil radiator's interior law of the fluid-flow and heat-transfer, establish the actual mathsmatic model.â‘¡Study the surface performances of the rectangle plain-fin with the wind tunnel test system, include the colburn j factor and the friction f factor, gain the relative performance curves.â‘¢With the application of Fluent, a kind of computational fluid dynamics software, numerical simulate the surface performances of rectangle plain-fin, and comparing with the result of wind tunnel test, verifying the validity for CFD technology in engineering practice. Also, bring out and research some ameliorating methods for fins like holed, filleted, and so on.â‘£Research and explore the CFD technology's value for empoldering the oil radiators and other similar equipments with the complexiable structure, point out a significative research direction.