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This proposal offers to provide NASA with an automatic mesh generator for the simulation of aerodynamic flows using Reynolds-Averages Navier-Stokes (RANS) models. The tools will be capable of generating high-quality, highly-stretched (anisotropic) grids in boundary layer regions and transition smoothly to inviscid flow regions even in an adaptive context. The objective of the work is to offer a un ...

The ability to quickly and reliably simulate high-speed flows over a wide range of geometrically complex configurations is critical to many of NASA's missions. Advances in CFD methods and parallel computing have provided NASA the core flow solvers to perform these simulations. However, the ease of use of these flow solvers and the reliability of the results obtained are a strong function of the te ...

Structured Materials Industries, Inc. and Cornell University propose to develop high speed integrated photonic switches and WDM for LIDAR applications. The team has recently shown that single mode silicon nitride (Si3N4) waveguides to have very low propagation losses. This material is an ideal candidate for the propagation and manipulation of optical signals at LIDAR wavelengths (1.06 μm). It is ...

The innovation proposed here is a high performance, high fidelity simulation capability to enable accurate, fast and robust simulation of unsteady turbulent, reacting flows involving cryogenic propellants (such as LOX/LH2 and LOX/LCH4). The key features of this proposed capability are: (a) Hybrid RANS-LES (HRLES) methodology, and (b) flamelet modeling for turbulent combustion incorporated in a pr ...

Computational tools that accurately predict the performance of electric propulsion devices are highly desirable by NASA and the broader electric propulsion community. Large investments in running the long duration test programs (> 20 kHrs) at NASA GRC can be reduced with computer models and allow more focus on exploring the NEXT ion thruster design for future space missions. The current state of e ...

In this STTR Phase I program, Structured Materials Industries, Inc. (SMI) and Arizona State University (ASU) will develop a SiGeSn based light emitter device technology on Si, which will be a key ingredient for Si-based integrated photonics applications, such as in lab-on-a-chip integrated chemical and biological spectrometers for landers, astronaut health monitoring, front-end and back-end for re ...

The innovation proposed here is a novel multi-scale coupling methodology implemented in the Loci-STREAM CFD code, for developing a high-fidelity, high-performance multiphase combustion modeling capability to enable accurate, fast and robust simulation of unsteady turbulent, reacting flows involving cryogenic propellants (such as LOX/Methane) in liquid rocket engines (LREs). During Phase 1 work, a ...

The MarsOasis™ cultivation system is a versatile, autonomous, environmentally controlled growth chamber for food provision on the Martian surface. MarsOasis™ integrates a wealth of prior research and Mars growth chamber concepts into a complete system design and operational prototype. MarsOasis™ includes several innovative features relative to the state of the art space growth chambers. I ...

This Multiband Software Defined Radio (SDR) sensor system proposal will demonstrate the ability to operate within multiple frequency bands and across multiple technology platforms in a single transceiver. The center frequencies and bandwidths chosen are representative of current demonstrated commercial or research devices and bands used: 400 MHz, 900 MHz, and 2.4 GHz ISM bands, with bandwidths of ...

Sensatek Propulsion Technology, Inc. proposes to demonstrate the feasibility of a wireless, passive, nanoparticle-based sensor system. The sensor in its current form can be used to measure real time temperatures and pressures wirelessly without the need of an external energy source. It should be noted that the same sensing principle can be used for strain monitoring as well. It comprises of a micr ...