Not Available AcuSoft proposes to research and develop a database correlation tool to maximize the reusability of existing and future Computer Generated Forces Terrain databases and to improve upon current terrain database correlation methods. In the Phase I effort, AcuSoft will 1) Study simulation… More

"Advanced mission requirements for both military and civilian aircraft demand greater engine efficiency and increased thrust-to-weight ratios. These requirements have driven aircraft engine designers to increased pressure ratios and higher totaltemperatures for next generation engines. This… More

Combustion Science & Engineering, Inc. (CSE) proposes to develop an advanced modeling tool that incorporates the abilities of CFD to properly predict flow field variables with the ability to consider complicated chemical kinetics through the use ofchemical reactor modeling. This tool will be… More

DESCRIPTION (provided by applicant): Two million Fires annually kill and injure more than 27,000 people in the US. All other natural disasters (floods, hurricanes, earthquakes, tornadoes, etc) account for only a small percentage of those injured in fire every year and it is estimated that as many as… More

DESCRIPTION (provided by applicant): Two million Fires annually kill and injure more than 27,000 people in the US. All other natural disasters (floods, hurricanes, earthquakes, tornadoes, etc) account for only a small percentage of those injured in fire every year and it is estimated that as many as… More

In order to support advanced, automated damage control (DC) planning and operations for low manning ship concepts, prognostic modeling of the spread of smoke is needed. Existing models do not address smoke spread and propagation in confined spaces such as onboard ships. The goal of this project is… More

Reliable design tools are of paramount importance to predict the combustion processes under supersonic conditions, as obtaining ground experimental data under these conditions is difficult and expensive. Combustion Science & Engineering, Inc. (CSE) proposes to develop a global approach for creating… More

One of the difficulties in reactive flow simulation is the development of reduced models that are capable of predicting the non-equilibrium processes such as ignition and blow-out. Hydrocarbon fuels become viable alternatives to hydrogen at Mach numbers below 10, because of greater fuel densities… More

New aircraft such as the STOVL present a different thermal risk to personnel then traditional aircraft designs. Personnel operating within the thermal risk areas of these aircrafts wear personal protective equipment (PPE), but current PPE provide insufficient protection against the thermal hazards… More

As maintaining a stable combustion process is a major challenge associated with augmentor design and operation, numerical simulations are necessary to understand the combustion process and develop control strategies. Thus, it is essential to have reliable reduced kinetic models that are capable of… More

The flame stability in typical augmenters is largely determined by vitiated air composition and high preheat temperature of the incoming flow. Presence of significant quantities of CO2 and H2O in the vitiated air will affect the oxidation characteristics of jet fuels by increasing the third-body… More

Maintaining stable combustion is a major challenge associated with augmentor design and operation. Numerical simulations of this process are necessary to understand the combustion process and develop control strategies. Thus, it is essential to have reliable reduced kinetic models that are capable… More

The flame stability in typical augmenters is largely determined by vitiated air composition and high preheat temperature of the incoming flow. Presence of significant quantities of CO2 and H2O in the vitiated air will affect the oxidation characteristics of jet fuels by increasing the third-body… More

Augmentor stability is a major issue for the design of reliable engines over a broad range of operating conditions. The stability of the combustion process in augmentors is a result of the interaction between the unsteady fluid mechanics around the flameholder, finite-rate chemistry, and the physics… More

The advancement of aeropropulsion technologies has placed increasing demand on the structural and thermal capabilities of high speed aeroengines. Though hydrocarbon fuels have been used as cooling media in jet aircraft engines for several years, advanced flight vehicles are reaching a practical heat… More

As maintaining a stable combustion process is a major challenge associated with augmentor design and operation, numerical simulations are necessary to understand the combustion process and develop control strategies. Thus, it is essential to have reliable reduced kinetic models that are capable of… More

The advancement of aeropropulsion technologies has placed increasing demand on the structural and thermal capabilities of high speed aeroengines. One solution to absorbing the high heat loads generated during chemical reactions is to use endothermic fuels in the cooling loops of these engines. At… More

Computational Fluid Dynamics (CFD) solvers based on RANS, URANS or LES are required to estimate the filtered reaction rates to account for the turbulent-chemistry interactions for accurate modeling of reactive flows. It is critical to have a reliable reaction rate estimation scheme coupled with… More

ABSTRACT: It is essential to have reliable reduced kinetic models that are capable of predicting transient combustion phenomena such as ignition and extinction under augmentor operating conditions. Combustion Science & Engineering, Inc. proposes to develop a robust, computationally efficient… More