Award Data

Chemical manufacturers require high accuracy/high sensitivity pressure sensors to efficiently monitor the various manufacturing systems and processes in the chemical plant, to ensure any changes proceed in a safe and reliable manner, adhering to expected standards and practices. NIST also has a need for highly accurate pressure measurements, especially determining the thermo-physical properties of ...

The Nonlinear Dynamic Flight Simulation (NL-DFS) system will be developed in the Phase II project by combining the classical nonlinear rigid-body flight dynamics model with an add-on nonlinear aeroelastic solver to compute the airframe response due to pilot input command and to identify the key aeroelastic coupling mechanisms between the structural dynamics and unsteady aerodynamics with classic r ...

Clear Science Corp. proposes to develop and demonstrate computational fluid dynamics (CFD)-based, reduced-order aeroservoelasticity modeling and simulation technology for fast and accurate predictions of nonlinear flight dynamics, enabling real-time, piloted and unpiloted flight simulations and providing a tool to design flight controllers for highly flexible, lightweight aircraft. Physics-based, ...

Thorough understanding of airframe and propulsion aerodynamic noise sources and the subsequent acoustic propagation to the farfield is necessary to the design and development of efficient, environmentally acceptable aircraft. In this SBIR study, we propose to develop a high fidelity tool using high-order low-dissipation methods in the NASA flagship unstructured CFD code FUN3D. The developed predi ...

In order to enable widespread application of Active Flow Control (AFC) technology on commercial transports, Actasys Inc, in collaboration with The Center for Advanced of Multifunctional Material Systems at University of California, Los Angeles (CAMMS-UCLA) and the Princeton University, intend to develop a model-based environment for the advancement of design and performance validation of AFC using ...

Clear Science Corp. proposes to develop and demonstrate computational fluid dynamics (CFD)-based software for designing and evaluating active flow control (AFC) systems on aircraft. The software will facilitate the identification of optimal types of actuation and their locations, will support virtual flight testing with both open- and closed-loop control systems, and will enable quantitative trad ...

FlightStream has been developed a fast, accurate, aerodynamic prediction code based on vorticity computations on the surface of an aircraft. The code, though still a surface paneling algorithm, has proven to be significantly more robust and computationally efficient. FlightStream uses CAD or an unstructured surface mesh and is adaptable to subpanels varying in vertex valence from triangles to surf ...

Various attempts to advance high-order mesh generation technology have been made in recent years, however an integrated solution capable of robustly creating optimal curved element meshes in 3D still does not exist. In this SBIR project, CFDRC will develop a software tool for the generation of meshes formed by high-order elements. Our approach consists of (a) linear mesh generation and import, (b) ...

Environmental barrier coatings (EBC) prevent oxidation of ceramic materials in reactive, high temperature environments such as the exhaust regions of gas turbine engines. CFDRC proposes to a develop a physics based model of an EBC system interacting with the flow environment to provide a means to gain better understanding of the dynamic processes that effect EBC durability and performance under pr ...

Computational fluid dynamics (CFD) simulations are extensively used by NASA for hypersonic aerothermodynamics calculations. The physical models used in CFD codes and initial/boundary conditions for numerical simulations carry significant uncertainties. There are also inherent errors in experiments designed for model validation, and numerical discretization. Despite this knowledge, only a limited n ...