Automobile heat radiator wind tunnel experiment device for simulating actual operation working condition

Abstract

The invention discloses an automobile heat radiator wind tunnel experiment device for simulating the actual operation working condition. The automobile heat radiator wind tunnel experiment device comprises a tunnel body, wherein an air inflow heating and controlling device, a restriction orifice, a stabilizing section, a temperature measuring device, a heat radiator module, and a fan provided with a rotating speed measuring device are sequentially arranged in the air inflow direction inside the tunnel body; and the fan is communicated with outside atmosphere. According to the automobile heat radiator wind tunnel experiment device, the air inlet heating and controlling device is adopted for simulating the actual environment temperature, and the problem that vehicle field test of the automobile heat radiator module is concentrated to be carried out in summer can be solved. The restriction orifice is adopted and the area of the orifice is regulated, so that the throttling conditions of engine cabins and gratings in different kinds of vehicles can be actually simulated, the fan is directly used for sucking air and radiating heat instead of adopting uniform airflow, and rayleigh distribution is adopted for simulating and controlling the current change in an electric heating wire for simulating the fluctuation of an actual environment temperature, so that a trial-produced automobile heat radiator module of the automobile heat radiator wind tunnel experiment device for simulating the actual operation working condition is more rapid and effective.

Description

technical field [0001] The invention relates to a wind tunnel test device, in particular to an automobile radiator wind tunnel test device for simulating actual operating conditions. Background technique [0002] At present, the heat dissipation performance of radiators is usually obtained by wind tunnel tests based on the national standard JB / T 10505-2005. However, the wind tunnel test conditions for heat dissipation performance of radiators are quite different from the actual situation. Accurate measurement requires uniform airflow inside the radiator wind tunnel. However, when the vehicle is actually running, in view of the structural characteristics of the fan itself, the flow velocity of the air flowing through the tip of the fan, the blade fan and the hub part is very different during the rotation of the fan. The annular flow velocity of the fan is high, and the flow velocity at the projection surface of the fan hub and the four corners of the radiator is low, resultin...

AI Technical Summary

Problems solved by technology

However, this patent obviously cannot simulate the ambient temperature, and still cannot meet the test requirements for simulating actual conditions.

Images