A method for simulating the wind resistance characteristics of a suspension pipeline bridge in a wind tunnel test
A technology of wind tunnel test and pipeline bridge, which is used in aerodynamic test, machine/structural component test, measurement device, etc., can solve the problem that the results cannot reflect the real situation, etc., achieve easy test operation, simple setup, The effect of improved simulation accuracy
Active Publication Date: 2017-10-03
BC P INC CHINA NAT PETROLEUM CORP +2
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As a result, the results of the wind tunnel test cannot reflect the real situation
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[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with examples and accompanying drawings. It should be understood that the specific examples described here are only used to explain the present invention, not to limit the present invention.
[0026] A method for simulating the wind resistance characteristics of a suspension pipeline bridge in a wind tunnel test, comprising the following steps:
[0027] Step 1, establish a group of CFD analysis models of a single pipeline model, vertically arrange metal wires on the outer wall of the pipeline model, and extract the resistance coefficient C of the pipeline model according to the analysis results of the CFD analysis model D1 , the drag coefficient C D1 Obtained by CFD analysis software.
[0028] Such as figure 2 , is the resistance coefficient C D1 Variation curve with wire spacing, according t...
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The invention relates to a method for simulating the wind resistance characteristics of a suspension pipeline bridge in a wind tunnel test, and belongs to the technical field of wind resistance of a suspension pipeline bridge. The method includes: extracting the resistance coefficient CD1 of the pipeline model according to the analysis results of the CFD analysis model of the pipeline model, and preliminarily setting the range of the distance between the metal wires; longitudinally setting the metal wires on the outer wall of the pipeline model, and wind the pipeline model with the metal wires. Hole test, to obtain the resistance coefficient CD2 of the pipeline model; list the change curve of the resistance coefficient CD2 with the wire spacing, when the resistance coefficient CD2 changes with the wire spacing minimum, finally determine the wire The standard spacing; the metal wires are set according to the standard spacing, and the pipeline model with the metal wires is set up on the suspension pipeline bridge model to carry out the wind tunnel test. The setting of the metal wire in the invention is relatively simple, which is convenient for test operation and improves the simulation accuracy of the wind tunnel test of the suspension pipeline bridge.
Description
technical field [0001] The invention relates to a method for simulating the wind resistance characteristics of a suspension pipeline bridge in a wind tunnel test, and belongs to the technical field of wind resistance of a suspension pipeline bridge. Background technique [0002] In the construction of oil and gas pipelines, suspension pipeline bridges are often used to cross rivers and canyons. Compared with ordinary highway suspension bridges, the narrow and flexible suspension bridges are typical wind-sensitive structures. In the engineering design of suspension pipeline bridge, wind resistance design is an important part. The current wind resistance design is supported by the wind tunnel test of the suspension pipeline bridge. Due to the limitation of the size of the wind tunnel laboratory, most of the current tests are wind tunnel tests on the segmental model of the suspension pipeline bridge. A large number of research results show that there is a large Reynolds numb...
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IPC IPC(8): G01M9/00G01M9/08
Inventor 李国辉王文进左雷斌马存明马晓成詹胜文李明水杨春玲铁明亮王丽康坤坤
Owner BC P INC CHINA NAT PETROLEUM CORP