When designing the heat stop, the experts at Aavid Thermacore had to take into account multiphase flow within the metal heat exchangers and ensure that, for example, asymmetrical thermal load would not result in “hot spots”, which in turn could cause the “self-induced seeing” phenomenon. By using Siemens Star-CCM+ software, Thermacore engineers were able to visualize flow patterns within the enclosure and adapt the design accordingly. They also succeeded in designing the heat stop so that its temperature is not more than ten degrees Celsius above ambient temperature.
Better understanding of the sun
With this ultra-modern cooling system, the scientists are now able to use the DKIST to its full capacity. The 75-millimetre thick primary mirror has a diameter of 4.24 metres and provides extremely sharp images of the solar surface. One of the research aims is to learn more about the magnetic fields of the sun, which control the temperature of the corona and the solar wind. As a result, the scientists hope to improve their predictions on the way in which this space weather influences the earth.