High and low temperature airflow rapid mixing system for total temperature semi-physical simulation
A hardware-in-the-loop simulation and mixing system technology, applied in the field of high and low temperature airflow rapid mixing system, can solve the problems of narrow temperature control range, low control accuracy and fast response requirements, etc.
Pending Publication Date: 2021-04-27
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology
At present, the temperature simulation research for the hardware-in-the-loop simulation of space vehicles is mainly focused on large-scale space air temperature regulation, the temperature control range is narrow, and the requirements for control accuracy and rapid response are low.
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[0026]In order to make the objectives, technical solutions and advantages of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely intended to illustrate the invention and are not intended to limit the invention. Further, the technical features according to each of the various embodiments described below can be combined with each other as long as they do not constitute a collision between each other.
[0027]Such asFigure 1 ~ 3As shown, the embodiment of the present invention provides a high and low temperature gas flow rapid mixing system for a total temperature semiconal simulation, the system including the intake device 10, the mixing device 30, and the temperature measuring device 40, wherein:
[0028]The intake device 10 includes a hot air flow generating assembly 110 and a cold air flow line 120, and the hot air ...
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The invention belongs to the field of total temperature simulation, and particularly discloses a high and low temperature airflow rapid mixing system for total temperature semi-physical simulation. The system comprises an air inlet device, a mixing device and a temperature measuring device. The air inlet device is used for providing hot air and cold air respectively. A first ceramic inner cavity in the mixing device sleeves the outer side of a second ceramic inner cavity, and a front end inlet of the first ceramic inner cavity is connected with a hot air flow generation assembly. A cold air flow pipeline is connected with the side wall of the first ceramic inner cavity, and meanwhile air holes are formed in the side wall of the second ceramic inner cavity. A turbulence rod is arranged in the second ceramic inner cavity, and a third ceramic inner cavity is connected with an outlet in the rear end of the second ceramic inner cavity. Cold air enters the annular gap between the first ceramic inner cavity and the second ceramic inner cavity and then enters the second ceramic inner cavity through the air holes to be mixed with hot air, so that the direct contact area of cold air flow and hot air flow is increased, and meanwhile the mixing rate of the cold air flow and the hot air flow can be further increased by arranging the turbulence rod.
Description
Technical field[0001]The present invention belongs to the field of total temperature simulation, and more particularly to a high and low temperature gas flow rapid mixing system for total temperature semi-real simulation.Background technique[0002]The space aircraft is in the flight, the total temperature is the basic atmospheric parameters entered by the aircraft navigation system, so that the real air velocity can be obtained, the total temperature value is directly affected by flight speed and flight height. The total temperature is also known as a hysteresis temperature, which is a temperature that the air air flow is blocked and the kinetic energy is fully converted into the temperature reflected.[0003]Designing aerodynamic servo technology and thermodynamic related theory design aircraft semi-real simulation total temperature temperature simulation device, through space aircraft, total temperature signal semi-real emulation, introducing real gas temperature signal into the airc...
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IPC IPC(8): B01F3/02B01F15/00B01F23/10
CPCB01F23/14B01F35/2115B01F2101/23
Inventor 杨钢朱登峰李宝仁高隆隆杜经民傅晓云
Owner HUAZHONG UNIV OF SCI & TECH