A device and method suitable for visualization experiment of smoke line flow field
A technology of flow field and smoke wire, which is applied in the device field of smoke wire flow field visualization experiment, can solve problems affecting the accuracy of the experiment, flow field interference, etc., and achieve the effects of saving test material costs, ensuring accuracy, and being easy to obtain
Active Publication Date: 2022-07-08
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In addition, conventional vaping oil is applied manually, or using gravity to let the vape oil flow down along the wire. If the metal wire is placed horizontally, this method of oiling by gravity is not realistic. If you rely on manual oiling , the oiled brush will greatly disturb the flow field and affect the accuracy of the experiment
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] The invention is further described below in conjunction with the accompanying drawings and examples.
[0025] A method suitable for the visualization experiment of the smoke line flow field proposed in the above, a set of devices suitable for the visualization experiment of the smoke line flow field is designed, and its specific structure is as follows:
[0026] A device suitable for a smoke line flow field visualization experiment, comprising two conveying devices (1) located at both ends of an airfoil (14), such as figure 1 , shown in 2. Inside the conveying device (1), it includes a transmission power control part and a transmission structure part. The transmission power control part is a rotating motor (3) that drives the spool (2) to rotate to complete the transmission process of the wire. The switch on the power controller , Knob control to adjust the working state of the rotating motor. The transmission structure part is composed of a conveying chute (11) that ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention discloses a device and method suitable for the visualization experiment of the flue gas flow field. The present invention relates to a device and method suitable for the visualization experiment of the flue gas flow field. The method mainly relies on two identical wire conveying devices to The transmission of the wire between the two conveying devices is completed, and the wire can be automatically filled with the oil required for smoking during the transmission process. When the metal guide rollers in the two devices are powered on, the metal wire between the two devices will heat up due to the power on, and the fuming oil attached to the surface of the metal wire will vaporize into smoke after being heated by electricity. , these smokes work well as tracer particles to show the flow field. Through this method, the principle is simple and practical, and the problems of difficulty in applying oil and unsustainable smoking when the metal wires are arranged horizontally in the experiment can be well solved, and the experiment efficiency is greatly improved.
Description
technical field [0001] The invention belongs to the technical field of wind tunnel tests, and in particular relates to a device and a method for a smoke line flow field visualization experiment. Background technique [0002] The flow observation methods in wind tunnel experiments are roughly divided into two categories: the first is the tracer method, and the second is the optical method. In the tracing method, there is a method of visualizing the flow field of the smoke line, which uses the heating of the metal wire to vaporize the smoke oil to generate smoke, and the flow of the gas around the aircraft or the object is visually simulated through the smoke, which is convenient for the collection and analysis of wind tunnel test data. analyze. A common method for visualizing the flow field of the smoke line is to stretch a metal wire vertically at the mouth of the wind tunnel near the leading edge of the model to conduct the smoke line experiment. This method can observe th...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/06
CPCG01M9/06
Inventor 夏天宇董昊徐聪邓浩东金周张旭东杨明
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS