![nozzle contour in gmsh nozzle contour in gmsh](https://i.ytimg.com/vi/4NUGpfHHV3c/maxresdefault.jpg)
The unstructured hex-dominant meshing tool OMNIS™/Hexpress and the unstructured flow solver OMNIS™/Open-DBS with OpenLabs™ were selected for this task. Tim Conners, Lead Propulsion Engineer at Boom Supersonic The NUMECA partnership has given Boom the opportunity for significant savings in computational resources and a reduction in design cycle time. NUMECA solutions have not only advanced the development of the XB-1 subscale demonstrator by providing a dramatically streamlined and highly automated workflow, but the NUMECA partnership has given Boom the opportunity for significant savings in computational resources and a reduction in design cycle time.īoom managed to achieve results up to 14 times faster than with their previous design environment. In a pilot program with NUMECA, Boom managed to achieve results up to 14 times faster than with their previous design environment, according to Tim Conners, Lead Propulsion Engineer at Boom Supersonic.
![nozzle contour in gmsh nozzle contour in gmsh](https://homedepot.scene7.com/is/image/homedepotcanada/p_1001087630.jpg)
They also work with a very short time to concept, which means they need a solution that is fast to set up and even faster to get results. They will do this by limiting supersonic speeds solely to trans-oceanic flight segments and implementing the latest noise-reducing technologies to ensure no increase of existing noise contours during take-off and landing.ĭue to the complexity of designing for supersonic speeds, Boom Supersonic engineers need to be able to test multiple conditions and try out many different design ideas. Mitigating the community's exposure to the noise of sonic booms is another priority. One such innovation is its partnership with Prometheus Fuels, a company using clean energy to make zero-net carbon fuels out of carbon dioxide that is already in the atmosphere. To support this, Boom Supersonic plans to accommodate drop-in sustainable alternative fuels that will reduce their carbon footprint by roughly 80% and is actively looking at ways to incorporate environmentally minded innovations into Overture's design, without causing technical risk to their development timeline. The UN’s CORSIA climate agreement of carbon-neutral growth requires the offset of all international aviation emissions, whether subsonic or supersonic. Besides the challenges that supersonic flight inherently imposes, Boom’s Overture designers also need to consider important environmental and social factors. With pre-orders and options for 30 Overture airliners from Japan Airlines and Virgin Group already booked, the race is on to design the next generation supersonic plane. Overture will travel at a speed of Mach 2.2 and a cruising altitude of up to 60,000 feet. Although the former process ultimately acts to deflect the plume off axis, in some instances, the swirl around the source succeeds in laminarizing the flow, resulting in tornado formation.Authors: Michael Rybalko, Aeropropulsion Engineer, Boom Supersonic & Jean-Charles Bonaccorsi, Technical Director, NUMECA USAįounded in 2014 in Denver, Colorado, Boom Supersonic is redefining what it means to fly by building Overture, history’s fastest commercial airliner. Meanwhile, the swirl (the ratio of the azimuthal to vertical flow) around the vicinity of the source increases, which tends to suppress three-dimensional turbulence in the near-source flow. As a consequence of entrainment, vertical vorticity builds up within the plume reducing the Rossby number and suppressing vertical motion at distances progressively closer to the source. Simulations reveal that this is a consequence of the competing dynamics that occurs on comparable time scales. However, their formation is more likely if the plumes are ‘lazy’. Tornado formation occurs in some experiments and not in others even if the source and background rotation parameters are identical. In other cases, shortly after being deflected, the plume laminarizes near the source to form a near-vertical columnar vortex, which we refer to as a ‘tornado’. For some experiments and simulations, the deflection persists and the flow precesses about the vertical axis. However, on a time scale of the order of half a rotation period, the plume becomes deflected from the vertical axis.
![nozzle contour in gmsh nozzle contour in gmsh](https://i.ytimg.com/vi/S0JOIFJ4phI/hqdefault.jpg)
The source Rossby number is sufficiently large that rotation does not directly affect the plume at early times. Through laboratory experiments and numerical simulations, we examine the evolution of buoyant plumes as they are influenced by background rotation in a uniform density ambient fluid.