During the development phase of a new car must take into account the various climatic phenomena it may encounter, so it is necessary to place the vehicle in the corresponding reliability test, but this somewhat dependent on the weather imply. We need the climatic conditions are often not the people’s will, it can simulate various weather conditions of the vehicle may encounter real-life situations through the establishment of a small Earth-like environment, and this is the so-called man-made global environment thermodynamic wind tunnels.
1. The thermodynamic wind tunnels Glossary
a new car during the development phase must take into account the various climatic phenomena it may encounter, so they need the vehicle placed in the appropriate place reliability test, but this somewhat dependent on the weather imply. We need the climatic conditions are often not the people’s will, it can simulate various weather conditions of the vehicle may encounter real-life situations through the establishment of a small Earth-like environment, and this is the so-called man-made global environment thermodynamic wind tunnels.
2. The difference between the wind tunnel and aerodynamics of
I believe many people have heard about the wind tunnel, and according to different test objects and purposes, the wind tunnel are also many different kinds, the most common is the dynamics wind tunnel, which is mainly used to design and optimize the aircraft, missiles, spacecraft exterior styling, dynamics in the wind tunnel can simulate conditions as they may arise in the high-speed movement.
For automobile manufacturers, the wind tunnel to develop aerodynamic body shape also plays an important role, especially in some supercar manufacturer. Engineers typically will first be made 1: 1 clay model of the car, and then tested in a wind tunnel, a strong air flow generated by the blowing wind tunnel body surface to observe the flow of gas meets the needs of the design, then again details modified to meet the requirements that the drag coefficient.
Of course, you can build into a 1: 1 wind tunnel scale model of the car price is not cheap, often reach hundreds of millions of dollars or even more, but every time do wind tunnel testing costs are also considerable.
Further thermodynamic wind tunnel is a noun, its main purpose is to various road conditions, changes in the simulated vehicle climate encountered in practice, which can simulate rain and snow, different temperature and humidity environment. However, you do not need these aerodynamic wind tunnel, it only needs a hair, which is the biggest difference between the two.
3. Pan-Asian vehicle thermodynamic wind tunnels
all kinds of weather and road conditions to maximize the wind tunnel simulation of thermodynamic vehicle pan-Asian regional global customers may experience, and even simulate actual road beyond the range extreme weather conditions that can be encountered in the test, is the first domestic car plant thermodynamic wind tunnels leading global levels, is the first thermodynamic functions with snow and wind tunnel simulation, and also has a number of most domestic , including: the highest wind speed simulated conditions, the maximum wind speed of up to 250 km / h; controlled most advanced full-spectrum sunlight simulation systems, strength of up to 1200 W / m2; there are roads leading technology hub mock system.
Pan-Asian vehicle thermodynamic wind tunnels in the Pan Asia has the automatic air conditioning control, comfort and vehicle development, vehicle thermal systems integration and other aspects of self-calibration capability. By seasonal and geographical limitations to break the wind tunnel can replace about 80 percent of thermodynamics road test, can reduce energy consumption project development process, significantly improve the efficiency of vehicle development, to accelerate the product development process.
“Pan-Asian vehicle thermodynamic wind tunnels, to provide a solid technical guarantee for Shanghai GM’s vehicle development and follow-up of local research and development of new energy vehicles. We can say that every day we have a new Pan-Asian things new R & D results. “Pan Asia technical automotive Center Executive Vice President Gao Weimin case said. According to reports, the vehicle thermodynamic wind tunnels enable Pan Asia will not only accelerate the development of new energy models, to bring more protection for critical systems development motor, battery, electric vehicles and other new energy sources, but also reflects the “green R & D “” concept of green production “. It is reported that thermodynamics wind tunnel research and development and maintenance costs a year is about 400 million to 500 million yuan. As Shanghai GM Design and Engineering Center of the car, Pan Asia was established 15 years ago, adhere to independent research and participate in international division of labor “walking on two legs”, by quickly learning, absorbing, innovation, has become the national leader in the full sense ofVehicle development capabilities, and become one of the world’s six major common R & D center.
4. Thermodynamic models developed in the wind tunnel for meaning
In the absence of thermodynamics wind tunnel test vehicle is to see the face of God, but also by a lot of interference. In four seasons in China, only a year, winter or summer, both the northern and southern hemispheres, but also take advantage of the two. For example, in doing high-temperature test vehicles or air-conditioning system testing, then it needs 7-8 months in China, in December, January and Australia, and with the wind tunnel, the unlimited external conditions, year 12 month can take advantage of a small simulation debug environment for the development of the vehicle. Imagine, research and development costs or whether it is time to get better control, greatly improving the work efficiency.
Of course, also the wind tunnel is not a panacea, even with thermodynamic tunnel, nor will all tests completed in a wind tunnel, which is usually used to complete the work of 80 percent, while the remaining 20 percentage of the actual condition will need to pre-final inspection down in the wind tunnel results.
In this thermal wind tunnel has more than 2000 channels, each channel that is a data message, by collecting these data, the measurement, analysis, the vehicle may be under the various conditions of the feedback conditions to capture a more sensitive, detailed and technical personnel to help identify more precisely the crux of the problem.