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NASA Simulations Improve Artemis II Launch Environment

To better understand the Artemis Space Launch System (SLS) rocket’s flight environment, engineers turned to a NASA-developed tool called the Launch, Ascent, and Vehicle Aerodynamics (LAVA) framework. Using data from the 2022 Artemis I launch, researchers at NASA’s Ames Research Center in California’s Silicon Valley used LAVA to simulate complex interactions between the rocket plume and a system that pumps water to suppress sound during launch. The system protects the rocket and other equipment from potentially damaging sound waves. The LAVA simulations improved NASA’s understanding of the plume interaction with the Artemis mobile launcher platform. Using this knowledge, aerospace engineers at NASA’s Kennedy Space Center in Florida refined the design plume pressures and adapted the launch platform to endure those pressures for Artemis II, NASA’s first mission with crew aboard the SLS and Orion spacecraft.

Find out more about the newest supercomputer at NAS.


NAS in the News:
Scientists Crack the Code on Mars Parachute Fabric Performance

Engineers working on Mars mission parachutes have made a breakthrough in understanding how the fabric itself affects landing performance, research that could improve future planetary missions. Simulations were run on the Anvil supercomputer at Purdue University, along with computational resources provided by the NASA High-End Computing Program through the NASA Advanced Supercomputing Division.

Read more about parachute simulations enabled by NAS resources.

Sub-Filter-Scale Shear Stress Deficit in Hypersonic Wall-Bounded Turbulence and Its Implications for Large-Eddy Simulation

Takahiko Toki, Purdue University

In this talk, the limitations of current LES models are first illustrated through simulations of hypersonic conical boundary layers. The focus then shifts to sub-filter-scale (SFS) turbulent behavior, investigated using direct numerical simulations (DNS) of hypersonic Couette flow with particular attention to shear-stress components.

More about this AMS seminar


NASA Supercomputers Take on Life Near Greenland’s Most Active Glacier

Runoff from Greenland’s ice sheet is kicking nutrients up from the ocean depths and boosting phytoplankton growth, a new NASA-supported study has found. Using supercomputers at NASA’s Ames Research Center in Silicon Valley and the ECCO-Darwin model, the researchers calculated that deepwater nutrients buoyed upward by glacial runoff would be sufficient to boost summertime phytoplankton growth by 15 to 40% in the study area.

Read more about how these simulations are helping oceanographers decipher hot spots of phytoplankton growth.


From Supercomputers to Wind Tunnels: NASA’s Road to Artemis II

Of the many roads leading to successful Artemis missions, one is paved with high-tech computing chips called superchips. Along the way, a partnership between NASA wind tunnel engineers, data visualization scientists, and software developers verified a quick, cost-effective solution to improve NASA’s Space Launch System) rocket for the upcoming Artemis II mission. A high-speed network connection between high-end computing resources at the NASA Advanced Supercomputing facility and the Unitary Plan Wind Tunnel at NASA’s Ames Research Center is enabling a collaboration to improve the rocket for the Artemis II mission.

Find out more about the NAS Division's role in this Artemis II work.


NASA Launches Its Most Powerful, Efficient Supercomputer

NASA is announcing the availability of its newest supercomputer, Athena, an advanced system designed to support a new generation of missions and research projects. The newest member of the agency’s High-End Computing Capability project expands the resources available to help scientists and engineers tackle some of the most complex challenges in space, aeronautics, and science. Housed in the agency’s Modular Supercomputing Facility at NASA’s Ames Research Center in California’s Silicon Valley, Athena delivers more computing power than any other NASA system, surpassing the capabilities of its predecessors, Aitken and Pleiades, in power and efficiency.

Find out more about the newest supercomputer at NAS.

High-End
Computing
Capability

Photo of Pleiades