Road tunnel ventilation performance model testing system
A tunnel ventilation and tunnel model technology, which is applied in the field of model testing, can solve the problems of inability to effectively analyze the influence of traffic wind, slow driving speed, and test error of wind speed increase, so as to ensure multi-function and test accuracy, strong development versatility, The effect of improving reliability
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example 1
[0047] Example 1: Test the influence of traffic wind generated by vehicle movement on the ventilation characteristics in the tunnel and at the top opening
[0048] Specific steps are as follows:
[0049] 1) Assemble the tunnel model according to the test needs, and place the model cars at different positions on the circular track of the power supply guide rail model at a certain interval;
[0050] 2) Arrange pressure sensors at the top opening to be tested and in the tunnel model;
[0051] 3) Inject tracer particles for traffic wind test into the tunnel model;
[0052] 4) Turn on the track power supply, and the model car starts to drive;
[0053] 5) Turn on the multi-point pressure acquisition system and the Doppler velocimeter;
[0054] 6) After the traffic wind formed by the running of the car is stable, record the data;
[0055] 7) Analyze the law of pressure and velocity changes in different sections.
example 2
[0056] Example 2: Test the influence of different top opening forms on the natural ventilation characteristics under the coupling effect of traffic wind and jet wind
[0057] Specific steps are as follows:
[0058] 1) Assemble the tunnel model according to the test needs, connect the top opening of the set form, the form of the top opening can be Figure 4-1 to Figure 4-3 Any one or several of them, the top opening can also be used Figure 4-1 to Figure 4-3 other structural forms;
[0059] 2) According to the test needs, place the model cars at different positions on the circular track of the power supply guide rail model at a certain interval;
[0060] 3) Arrange pressure sensors at the top opening to be tested and in the tunnel model;
[0061] 4) Inject tracer particles for traffic wind test into the tunnel model;
[0062] 5) Turn on the jet air circulation device;
[0063] 6) Turn on the track power supply, and the model car starts to drive;
[0064] 7) Turn on the mu...
example 3
[0067] Example 3: Test the influence of jet fan position on natural ventilation characteristics under the coupling effect of traffic wind and jet fan
[0068] Specific steps are as follows:
[0069] 1) Assemble the tunnel model according to the test needs, and place the model cars at different positions on the circular track of the power supply guide rail model at a certain interval;
[0070] 2) Arrange pressure sensors at the top opening to be tested and in the tunnel model;
[0071] 3) Inject tracer particles for traffic wind test into the tunnel model;
[0072] 4) Turn on the jet fan at the designated position;
[0073] 5) Turn on the track power supply, and the model car starts to drive;
[0074] 6) Turn on the multi-point pressure acquisition system and the Doppler velocimeter;
[0075] 7) After the traffic wind formed by the running of the car is stable, record the data;
[0076] 8) Analyze the influence of the relative position of the top opening and the jet fan on...
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