The application of hydraulic transmission system is more and more widespread

but the hydraulic oil heat dissipation problem of hydraulic transmission system has been the key factor to restrict its stride development

and has become a difficult problem to be solved urgently in the industry. As a new type of high efficiency heat exchanger

parallel flow radiator is widely used in industry because of its high heat transfer efficiency

small size and low price. But its heat exchange efficiency is still difficult to meet the needs of reality. The parallel flow pipe in a M type gear

the M type gear of the simplified physical model of parallel flow tube

and using FLUENT software for the parallel flow heat exchanger performance by numerical simulation

the effects of M in the tooth height and tooth width and tooth number of the parameters of the parallel flow of fluid in the pipe and the wall heat transfer performance.